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Our Team

Leadership Team

Our mission-driven team is passionate about changing healthcare, helping our customers and improving the lives of millions of Americans.

Giovanni Colella, MD

Co-Founder and CEO

Giovanni M. Colella co-founded Castlight Health in 2008 with Todd Park and Bryan Roberts. Gio currently serves as chief executive officer at Castlight.

Before co-founding Castlight, Gio was founder, president, and CEO of RelayHealth (acquired by McKesson in 2006), a pioneering healthcare company that provides secure digital communications to connect doctors with their patients. Gio has also served in senior roles at Sapient and SAI, and was a consultant at the Boston Consulting Group.

Before beginning his business career, Gio practiced medicine in Manhattan and is a board certified psychiatrist. He did his fellowship in public health at Columbia University and holds an MBA from Columbia Business School.

Jennifer W. Chaloemtiarana

General Counsel and Chief Compliance Officer

Jennifer Chaloemtiarana leads the legal function of Castlight as its general counsel and chief compliance officer. Previously, she was a chief counsel at Levi Strauss & Co., where she provided guidance and support for sales and consumer relations’ practices, as well as financing transactions, securities compliance, and corporate governance activities. Prior to that she was Associate General Counsel at Netflix, Inc. with a similar range of responsibilities, during a period of rapid growth. Chaloemtiarana is on the board of OneJustice, a civil legal aid nonprofit serving poor Californians. She has a JD from the University of Michigan Law School and a bachelor of science degree from Cornell University.

John Doyle

President and COO

John is responsible for all aspects of Castlight’s operations. John joined Castlight after serving as chief operating officer at Achaogen, a biopharmaceutical company. In that role, John managed business development, finance, IT, and business strategy. Previously, John was vice president of finance and corporate planning at Genentech, Inc. John received an MBA from the University of California, Berkeley, and a BS in business administration from California Polytechnic State University, San Luis Obispo. He is a member of the 2012 Class of Henry Crown Fellows at the Aspen Institute and serves on the Achaogen board of directors.

Siobhan Nolan Mangini

Chief Financial Officer

Siobhan is responsible for finance, investor relations, facilities, and business operations. Prior to joining Castlight Siobhan worked at Bain & Company, specializing in the health care and private equity practices. Siobhan began her career at the Kaiser Family Foundation as an investor responsible for managing the foundation’s endowment. Siobhan has an MBA from Stanford Graduate School of Business, MPA from the Harvard Kennedy School of Government and a BS from the Wharton School at the University of Pennsylvania.

John McCracken

Chief Revenue Officer

John McCracken is responsible for all commercial activities including demand generation and field marketing, sales, sales operations, strategic accounts and alliances, implementations, and customer marketing, success and support. McCracken joins Castlight after leading the sales team for Jive Software as worldwide senior vice president of sales, where he helped drive Jive’s growth through its IPO to establish its leadership in the social enterprise category. Prior to that, McCracken served as Senior Vice President of Sales for Inovis, and he has held executive management positions at Mercury Interactive Corporation, CheckFree Corporation, and American Express. McCracken received a BBA in marketing and marketing/finance from The University of Texas at Austin.

Jeremy Bauer

Chief Information Officer and Chief Security Officer

Jeremy leads IT and security efforts. This includes information security for all of Castlight corporate and Health Benefits Platform. Previously, Jeremy was Vice President of Global Cloud Services at SuccessFactors. He has over 15 years experience in IT including SaaS, security, compliance, service delivery and global cloud operations.Jeremy earned his Bachelors in Computer Science from Bemidji St. University.

Kristin Torres Mowat

Senior Vice President, Plan Development and Operations

Kristin leads Castlight’s efforts to forge and manage relationships with health plans and pharmacy benefit managers. This includes the operations to support the ongoing data sharing and co-development efforts to service our shared customers. Previously, Kristin was vice president at DaVita HealthCare Partners, a Fortune 500 and one of the largest national healthcare providers. She was responsible for corporate strategy, Falcon EHR (electronic health records business), and recruiting for the Redwoods Leadership Development Program. She co-led due diligence in DaVita’s $4.4B merger with HealthCare Partners. Kristin earned her bachelors in international relations and minor in human biology from Stanford University. After a consulting career at Bain & Co. and The Bridgespan Group, Kristin worked at Chiron Corporation before returning to Stanford to earn her MBA and JD. She serves on the executive board of Spark, a non-profit engaging at-risk youth in California.

Neeraj Gupta

Senior Vice President, Engineering

Neeraj is a long-time technologist and leads engineering at Castlight. Before joining Castlight, Neeraj was SVP, Product and Engineering at Apcera, an industry leader for providing a secure and policy driven trusted cloud platform. Prior to Apcera, Neeraj was SVP, Product and Engineering at Appcelerator, an enterprise mobile, analytics and cloud platform company. Prior to Appcelerator, he held various leadership roles at Particle Code, Spike Source and Oracle and technical roles at Informix and other companies. He earned a bachelor’s degree in Computer Science from I.E.T. India and a master’s degree in business administration from Haas School of Business, UC Berkeley.

Maeve O’Meara

Senior Vice President, Products

Maeve is responsible for product strategy and the product roadmap. Previously, Maeve was a venture capital investor at Highland Capital Partners, where she focused on investments in healthcare IT and services and the consumer internet markets. Maeve began her career at Bain & Company, where she specialized in healthcare provider and consumer strategy. Maeve also spent time at Generation Health, where she led original product design and development. Maeve has an MBA from Stanford Graduate School of Business and a BA from the University of Virginia.

Jonathan Rende

Chief Research and Development Officer

Jonathan Rende leads all R&D activities at Castlight Health, including product, engineering, information technology and security, strategic data operations, and analytics. Prior to joining, Rende was the Executive Vice President of Products and Marketing at Keynote, a global leader in cloud–based testing, monitoring, and analytics for mobile and web applications. With over 20 years of experience in the industry, Rende has held senior level product engineering and management roles at Appcelerator, HP, Mercury Interactive and Informix. This includes serving as Vice President and General Manager for HP Software’s $1 billion Application Lifecycle Management business, where he was responsible for engineering and products. He holds a bachelor of science in engineering from the University of California, Davis and an MBA from Santa Clara University.

Vicki Ryan

Chief People Officer

Vicki Ryan is responsible for leading all aspects of human resources as chief people officer at Castlight Health, including talent management, compensation and benefits, training and development, change management, and employee engagement. She has held senior HR executive positions, both domestically and internationally, and at successful high-growth technology and services organizations, ranging from start-ups to Fortune 150 corporations. Among her past leadership roles, Vicki served as chief people officer at Jive Software, global vice president of people at LumaSense Technologies, vice president of people for Mercury Interactive, which was acquired by HP. Vicki holds a bachelor of science in business from San Jose State University.

Nita Sommers

Chief Strategy Officer

Nita Sommers is the chief strategy officer for Castlight, overseeing the company’s strategy, corporate development and business development functions. During her tenure at Castlight, Nita has made many critical contributions to the company’s growth through her leadership in early sales activities, major ecosystem partnerships, and company financings, and most recently served as vice president, corporate and business development. Nita was an early employee at athenahealth, and worked at McKesson Corporation and McKinsey & Company prior to joining Castlight. Nita has an MBA from Stanford Graduate School of Business and a BA from Harvard University.

Joe Taborek

Senior Vice President, Sales

Joe Taborek leads the sales team at Castlight Health as senior vice president of sales. Taborek most recently served as area vice president where he drove Castlight’s growth in its largest geography. Prior to joining Castlight, Taborek served in a number of sales leadership and management positions at Jive Software, Accenture, Hewlett Packard, Mercury Interactive and Network Associates. Taborek earned his BS in Finance from Indiana University.

Chad Williams

Senior Vice President, Customer Experience

Chad leads our Customer Experience team which includes Implementation, Customer Success and Customer Support organizations. Prior to joining Castlight, Chad was vice president of global professional services for Advent Software that delivered project management, consulting, custom reporting/applications, and product upgrades to Advent’s worldwide customer base. During Chad’s 16 years with Advent, he held several leadership positions across the professional services, product management, pre-sales consulting, renewals and the support organizations. Prior to Advent, Chad worked in solution sales roles for a national software/hardware re-seller and in the security industry. Chad earned his BS from Indiana University.

  • Clinical advisory board

    Gregg Adams, MD, FACS

    Dr. Adams is the Chair of the Department of Surgery at the Santa Clara Medical Center, San Jose, CA and a Clinical Associate Professor in the Department of Surgery (affiliated) at Stanford University, School of Medicine. He received his medical school training at Oregon Health & Sciences University. He completed a residency in Pediatrics at Oregon Health & Sciences University and a residency in General Surgery at Stanford Hospital and Clinics.

    Andrew Lasher, MD

    Andrew is the Chief Medical Officer of Aspire Healthcare, a home and outpatient-based palliative care company based in Nashville, TN. Prior to his role at Aspire, Andrew was the Director of Palliative Medicine at California Pacific Medical Center in San Francisco, CA, the hospital’s internal medicine residency program director, as well as the vice-chairman of medicine. He received his medical training from the University of Texas Health Sciences Center. Dr. Lasher completed a residency in Internal Medicine at Stanford Hospital and Clinics, and a fellowship in Palliative Medicine at Stanford Hospital and Clinics and the Palo Alto Veterans Affairs hospital. He is the co-author of The End of Life Handbook, a practical guide for families of seriously ill patients.

    Navneet (Neetu) Ahluwalia, MD

    Dr. Ahluwalia graduated from The George Washington University School of Medicine and completed his anesthesiology residency at Stanford University Medical Center. He completed a Pain Management fellowship at Stanford, and then stayed on faculty for one year at Stanford prior to joining the VA Palo Alto. Dr. Ahluwalia currently practices both anesthesiology and pain management, and enjoys the diversity of private practice and academic practice at the VA. His outside interests include bicycling, surfing, snowboarding, and traveling.

    Christoph Lee, MD, MSHS

    Dr. Lee is Associate Professor of Radiology at the University of Washington (UW) School of Medicine, Adjunct Associate Professor of Health Services at the UW School of Public Health, Faculty Investigator at the Fred Hutchinson Cancer Research Center, and Adjunct Scientist at RAND Health. He earned his medical degree from Yale University, completed radiology residency at Stanford University, and completed his master’s in health policy and management research as a Robert Wood Johnson Foundation Clinical Scholar at UCLA.

    Lee-Jah Chang, MD

    Dr. Chang is a Director of Clinical Development at Sanofi Pasteur in Swiftwater, Pennsylvania and performs clinical research on novel vaccines. He is board certified in both internal medicine and allergy and immunology. He received his medical degree from Feinberg Northwestern School of Medicine and stayed at McGaw Northwestern Medical Center for his internal medicine residency. He completed his allergy and immunology fellowship at the National Institutes of Health where he also led Phase I clinical trials on malaria and chikungunya virus vaccines.

    Susan Lerner, MD

    Dr. Lerner is an Assistant Professor of Surgery and Medical Education at The Icahn School of Medicine at Mount Sinai. She is an abdominal transplant surgeon specializing in renal transplantation at the Recanati Miller Transplantation Institute. She completed her medical school training and general surgery residency training at the University of Pennsylvania and her transplant fellowship at the University of California – Los Angeles. She is very involved in education and is the Director of Education at the Transplantation Institute and the Co-Director of the Surgery Clerkship for the medical school.

    Eric Collisson, MD

    Dr. Collisson is on faculty as a Medical Oncologist at the University of California San Francisco and is a practicing physician at the San Francisco Veterans Affairs hospital. He is an expert in gastrointestinal malignancies and the use of molecular tests to improve the diagnosis and treatment of cancer. Dr. Collisson graduated from the University of California Los Angeles School of Medicine, completed his Internal Medicine residency at Stanford Hospital and Clinics and his Medical Oncology fellowship at the University of California San Francisco.

    Peter Lin, MD

    Dr. Lin is a neurologist and movement disorders specialist at the Valley Parkinson Clinic in Los Gatos, CA. He received his medical school training at the University of Michigan Medical School, completed an internship and residency in Neurology at Stanford Hospital and Clinics, and fellowship in Movement Disorders at the National Institutes of Neurological Disorders and Stroke. His research interests include neurodiagnostic testing in movement disorders and brain computer interface technology. He is actively involved with both clinical work and medical tech startups in neurology in the Bay Area.

    Whitney Daniels, MD

    Dr. Daniels is a board certified psychiatrist, in both adult, and child & adolescent psychiatry, serving as a Clinical Instructor in Child and Adolescent Psychiatry at Lucile Packard Children’s Hospital at Stanford University School of Medicine. Prior to settling in the San Francisco Bay Area, Dr. Daniels completed her residency at Harvard Medical School in Boston, Massachusetts. During her last year of training she was named Chief Fellow for Stanford University Child and Adolescent Psychiatry. She received her medical degree from Georgetown University School of Medicine in Washington, DC, after receiving a Bachelors of Science at Ursinus College. In addition to her academic role at Stanford, Dr. Daniels provides national forensic consultation, as well as serving on the Clinical Advisory Board for Castlight Health. Her most recent endeavors include book chapter contributions as well as upcoming authorship of a clinical handbook.

    Danil V. Makarov, MD, MHS

    Dr. Makarov is a urologist focused on caring for men with prostate cancer and a health services researcher interested in the cost and quality of care for men with prostate cancer, especially as they are affected by the adoption of new medical technology. He is an Assistant Professor of Urology and Population Health at the New York University (NYU) School of Medicine, where he is Director of Urologic Health Services Research, and Assistant Professor of Health Policy at the NYU Wagner School of Public Service. Dr. Makarov received his medical degree and finished his urology training at Johns Hopkins University and earned a Master’s degree in Health Sciences at Yale University while there as a Robert Wood Johnson Foundation Clinical Scholar.

    Madeline Dick-Biascoechea, MD

    Dr. Dick-Biascoechea is a clinical assistant professor of Obstetrics, Gynecology and Reproductive Sciences in the Division of Urogynecology and Pelvic Reconstructive Surgery at the University of Maryland School of Medicine. She completed her medical school and residency in obstetrics and gynecology at the University of Puerto Rico School of Medicine. She did her fellowship training in Female Pelvic Medicine and Reconstructive Pelvic Surgery at Yale School of Medicine. Dr. Dick-Biascoechea specializes in the evaluation and treatment of patients with female pelvic floor disorders such as urinary incontinence, pelvic organ prolapse and fecal incontinence. Her research interests include bowel dysfunction, health disparities and obstacles to specialty care.

    Anisha Patel, MD

    Dr. Patel is an Assistant Professor of Pediatrics at the University of California San Francisco. She is a practicing pediatrician and performs research on childhood obesity and chronic disease prevention. Dr. Patel earned a medical degree at the University of North Carolina Chapel Hill and completed a residency at Stanford Hospital and Clinics. She was Robert Wood Johnson Clinical Scholar at the University of California Los Angeles and a post-doctoral fellow in the Philip R. Lee Institute for Health Policy Studies at the University of California San Francisco.

    Charis Eng, MD, PhD

    Dr. Eng is ACS Clinical Research Professor, Hardis Endowed Chair of Cancer Genomic Medicine, inaugural Chair of the Genomic Medicine Institute and Director of its Center for Personalized Genetic Healthcare at the Cleveland Clinic. She is also Professor and Vice Chair of the Department of Genetics and Genome Sciences at Case Western Reserve University School of Medicine. She received her MD and PhD from the University of Chicago, completed internal medicine residency at Beth Israel Hospital Boston and medical oncology fellowship at the Dana-Farber Cancer Institute. Dr. Eng subsequently completed unique training in clinical cancer genetics at the University of Cambridge and Royal Marsden Hospital, UK.

    Manali Patel, MD, MPH

    Dr. Patel is an Instructor in the Division of Oncology, Department of Medicine at Stanford University School of Medicine. Manali is also a researcher at the Clinical Excellence Research Center and the Primary Care and Outcomes Research group at Stanford. She is a staff oncologist at the Veterans Administration and a researcher in the Palo Alto Veterans Administration Health Services & Research Development group. Dr. Patel’s career has focused on health services research, namely the redesign of cancer care to improve patient satisfaction, clinical outcomes, and reduce healthcare spending. In 2011, Dr. Patel designed a novel model of cancer care and she is currently pilot testing this model’s effectiveness in several sites nationally. Dr. Patel has been active nationally through advising health care systems across the United States on cancer care programs. Dr. Patel received her undergraduate double major degree in Anthropology and Chemistry at University of North Carolina Chapel Hill. She received her MD and Masters in Public Health there as well. She completed her Internal Medicine residency and Hematology and Oncology fellowship at Stanford University. Currently, she practices as a thoracic oncologist at Stanford and at the Palo Alto VA.

    Nimrit (Nimi) Gill, DDS

    Dr. Gill graduated from the University of the Pacific School of Dentistry focusing in general dentistry. She is a member of the American Dental Association, the California Dental Association, and the Santa Clara County Dental Society. For the past several years, she has been working in private practices in San Mateo and Fremont, and provides care to both adult and pediatric patients. Her outside interests include traveling and community service.

    Michael Phipps, MD

    Dr. Phipps is an Assistant Professor of Neurology and Epidemiology and Public Health at the University of Maryland School Of Medicine, and is a board-certified Neurologist with a specialty in Vascular Neurology (Stroke). He completed his neurology residency at the Yale University School of Medicine, and was then a fellow in the Yale Robert Wood Johnson Foundation Clinical Scholars program, where he received a Master’s degree in Health Sciences. He received additional training as a fellow in the VA/Yale Medical Informatics Fellowship, and as a clinical fellow in the Neurovascular fellowship at the University of Connecticut/Hartford Hospital. His overall research focuses on the quality and outcomes of patients with cerebrovascular disease, but also has a strong interest in access to care and health literacy for all patients.

    Brandon Gimbel, MD

    Dr. Gimbel is a board certified adult psychiatrist who practices near Chicago, IL. He attended medical school at Case Western Reserve University School of Medicine in Cleveland, Ohio, and completed his psychiatry residency at Harvard Medical School in Boston, Massachusetts. After finishing residency, Dr. Gimbel completed a two-year psychotherapy fellowship at Harvard Medical School. He then joined the staff of the Brigham and Women’s Hospital, where he taught and supervised medical students and psychiatry residents. Dr. Gimbel now works in Northbrook, IL, in private practice, providing both medication management and psychotherapy to his patients. He continues his teaching as an assistant clinical professor at the Rosalind Franklin University of Medicine.

    Elan Rubinstein, PharmD, MPH

    Dr. Rubinstein is a management consultant, with focus on marketing, business development and strategy related to pharmaceuticals. Operating as EB Rubinstein Associates since 1989, he serves manufacturers, channels of distribution, managers of pharmacy benefits, self-insured employers and startups. Dr. Rubinstein was awarded a pharmacy doctorate by the University of Southern California School of Pharmacy, and completed a post-doctoral residency program at University of California at San Francisco. He was awarded a masters in public health (health services administration) by the University of California at Los Angeles.

    Malkeet Gupta, MD, MS

    Dr. Gupta is an Assistant Clinical Professor in the Department of Emergency Medicine at UCLA where his research focuses on quality, risk, patient satisfaction and appropriate test utilization. He also works full time in the community as an emergency physician and is a managing partner at one of the busiest emergency departments in California where he is in charge of the group’s data analytics and patient satisfaction. Dr. Gupta received his BS from Stanford, MS from UC Berkeley, MD from UCSF, and then completed his residency and research fellowship at UCLA.

    Michael Shuler, MD

    Dr. Shuler is a hand and upper extremity surgeon at Athens Orthopedic Clinic in Athens, GA. He is a clinical faculty member at the Georgia University Regents and University of Georgia School of Medicine and is active in clinical research including disorders of the hand and upper extremity as well as acute compartment syndrome (ASC). He is part of an active grant from the Department of Defense to explore non-invasive monitoring for ACS. Dr. Shuler graduated from the University of North Carolina at Chapel Hill and received his medical degree from Johns Hopkins University School of Medicine. He trained at Emory University in Orthopedic Surgery and completed a hand and microsurgery fellowship at the University of Washington in Seattle. He is board certified in Orthopedic Surgery with additional qualifications in Surgery of the Hand.

    Arlene Hoffman, DPM, PhD

    Dr. Hoffman is a Clinical Professor of Podiatric Medicine and Surgery at Western University of Health Sciences and is internationally known for her clinical expertise in non-surgical solutions for the treatment of podiatric problems. She received her PhD in physiology at Downstate Medical School, SUNY and completed her post-doctoral fellowship in immune and autoimmune diseases in the Departments of Medicine and Physiology at Stanford University Medical School. Her residencies were at New York Jewish Memorial Hospital New York, and University of Georgia Medial School in Augusta Georgia. She continues to write textbook chapters and journal articles. Dr. Hoffman is a founding board trustee of the American Board of Podiatric Medicine; fellow and former trustee of the American College of Foot and Ankle Orthopedics and Medicine, the American Society of Podiatric Medicine, the American Society of Podiatric Dermatology and fellow of the American Professional Wound Care Association. Her private practice is in San Francisco. She is on staff at the California Pacific Medical Center and is a peer reviewer for the Journal of the American Podiatric Medical Association.

    Christopher L. Tebbit, MD

    Dr. Tebbit is an otolaryngologist, head and neck surgeon with Charlotte Eye, Ear, Nose, and Throat Associates in Charlotte, NC. Dr. Tebbit received his medical school training at Duke University, completed his internship with the general surgery program at Rush Presbyterian St Luke’s Medical Center/ Cook County Hospital, and graduated his otolaryngology residency at Duke University. While a resident at Duke, Dr. Tebbit also completed a surgical oncology research fellowship, focused on discovery of tumor specific targets for therapeutic intervention. Dr. Tebbit practices comprehensive otolaryngology, specializing in otologic, rhinologic and laryngologic diseases of adults and children.

    Jon-Erik Holty, MD, MS

    Dr. Holty is a Clinical Assistant Professor of Medicine in the Department of Medicine (affiliated) at Stanford Hospital and Clinics and an Adjunct Associate at the Center for Health Policy and Primary Care Outcomes Research, Stanford University. He received his medical training at Columbia University, Physicians and Surgeons. Dr. Holty completed his residency in Internal Medicine, his fellowship in Pulmonary and Critical Care, and his advanced fellowship in Sleep Medicine at Stanford Hospital and Clinics. While at Stanford, he also earned a Master’s in Health Services Research.

    Elizabeth Verner-Cole, MD

    Dr. Verner-Cole is an ophthalmologist specializing in vitreoretinal surgery in Portland, Oregon. She received her medical school training at the University of Texas-Houston Medical School. She completed her internship at The Methodist Hospital, Houston, Texas, and her ophthalmology residency at the University of Texas-Houston. Dr. Verner-Cole completed a year-long fellowship in Ophthalmic Pathology at The Methodist Hospital in Houston, Texas, followed by a two-year fellowship in vitreoretinal surgery at Casey Eye Institute in Portland, OR.

    Laurie Jacobson, MD

    Dr. Jacobson is a dermatologist and Mohs surgeon who practices in Seattle, Washington. She received her medical training at the University of Illinois at Chicago and completed her residency at Case Western Reserve University. She then completed a fellowship in Mohs surgery and cutaneous oncology at the Laser & Skin Surgery Center of New York. Dr. Jacobson lectures nationally and has written textbook and journal articles on topics ranging from novel skin cancer treatments to cosmetic enhancement of scars. Her practice is focused on the prevention and treatment of skin cancer.

    John Vorhies, MD

    Dr. Vorhies is a Resident in the Department of Orthopedic Surgery at Stanford Hospital. He received his medical training st Stanford University School of Medicine with a concentration in Health Research and Policy. His research includes work on how legislation affects national surgical complication rates and post-operative length of stay and readmission rates for hip and knee arthroplasty.

    Ahmad, Kamal, MD, MS

    Dr. Kamal is the Vice-Chairman of the Department of Internal Medicine and Associate Chief of Gastroenterology at Santa Clara Valley Medical Center in San Jose, CA. He is also Director of the Research Learning Pathway at Santa Clara Valley Medical Center and a Clinical Assistant Professor (Affiliated) at Stanford Medical School. Dr. Kamal obtained his MD at Harvard Medical School and completed both his internal medicine residency and gastroenterology fellowship at Stanford. While at Stanford, Dr. Kamal also earned a Master’s degree in Clinical Epidemiology.

    Jeff Wood, DDS

    As a pediatric dentist, Dr. Wood brings a background in medical and dental education as well as clinical practice to Castlight Health. He holds a BS in Biology with a minor in Psychology from Virginia Commonwealth University. He completed both dental school and his postgraduate residency in pediatric dentistry at the Medical College of Virginia.

    Joshua Kayman, MD

    Joshua Kayman, MD is the Medical Director of MPI Chemical Dependency Treatment Services at Summit Alta Bates Medical Center and Supervising Psychiatrist at the John Muir Behavioral Health Center. Dr. Kayman is interested in brief interventions for behavior change and the integration of behavioral health and primary care. He received a BA from Yale University, MD from UCLA, and completed the Psychiatry residency at UCSD.

    Craig Yarborough, DDS, MBA

    Dr. Yarborough is the Associate Dean for the Institutional Advancement at the Arthur A. Dugoni School of Dentistry in San Francisco, CA. He also serves as an Associate Professor. He received his dental school training at the University of the Pacific and his MBA from the Eberhardt School of Business.

    Nayer Khazeni, MD, MS

    Dr. Nayer Khazeni is an Assistant Professor of Medicine at Stanford University. She is a board certified internist and pulmonary & critical care physician. She completed her undergraduate studies in Literature and Biopsychology with honors at the University of California, San Diego. She received her medical degree from Georgetown University, completed internship and residency training in internal medicine at Northwestern University, and fellowship training in pulmonary and critical care medicine at Yale University. She received a Master of Science degree in Health Services Research from Stanford University. She conducts health policy research with a multi-disciplinary team of investigators from Stanford’s Department of Management Science and Engineering, Centers for Health Policy / Centers for Primary Care Outcomes Research, Division of Infectious Disease, and the U.S. Centers for Disease Control and Prevention (CDC).

    Brian Young, MD

    Dr. Young is a Faculty Nephrologist and Director of Inpatient Dialysis and Plasma Exchange at Santa Clara Valley Medical Center. He is also a Clinical Assistant Professor (Affiliated) at the Stanford University School of Medicine. Dr. Young’s interests include medical trainee education, and he is highly involved in program leadership with the Internal Medicine Residency Program at Valley Medical Center. Dr. Young completed medical school, internal medicine residency, and nephrology fellowship at the University of California, Los Angeles.

  • Giovanni Colella, MD

    Co-Founder and CEO

    Giovanni M. Colella co-founded Castlight Health in 2008 with Todd Park and Bryan Roberts. Gio currently serves as chief executive officer at Castlight.

    Before co-founding Castlight, Gio was founder, president, and CEO of RelayHealth (acquired by McKesson in 2006), a pioneering healthcare company that provides secure digital communications to connect doctors with their patients. Gio has also served in senior roles at Sapient and SAI, and was a consultant at the Boston Consulting Group.

    Before beginning his business career, Gio practiced medicine in Manhattan and is a board certified psychiatrist. He did his fellowship in public health at Columbia University and holds an MBA from Columbia Business School.

  • Jennifer W. Chaloemtiarana

    General Counsel and Chief Compliance Officer

    Jennifer Chaloemtiarana leads the legal function of Castlight as its general counsel and chief compliance officer. Previously, she was a chief counsel at Levi Strauss & Co., where she provided guidance and support for sales and consumer relations’ practices, as well as financing transactions, securities compliance, and corporate governance activities. Prior to that she was Associate General Counsel at Netflix, Inc. with a similar range of responsibilities, during a period of rapid growth. Chaloemtiarana is on the board of OneJustice, a civil legal aid nonprofit serving poor Californians. She has a JD from the University of Michigan Law School and a bachelor of science degree from Cornell University.

  • John Doyle

    President and COO

    John is responsible for all aspects of Castlight’s operations. John joined Castlight after serving as chief operating officer at Achaogen, a biopharmaceutical company. In that role, John managed business development, finance, IT, and business strategy. Previously, John was vice president of finance and corporate planning at Genentech, Inc. John received an MBA from the University of California, Berkeley, and a BS in business administration from California Polytechnic State University, San Luis Obispo. He is a member of the 2012 Class of Henry Crown Fellows at the Aspen Institute and serves on the Achaogen board of directors.

  • Siobhan Nolan Mangini

    Chief Financial Officer

    Siobhan is responsible for finance, investor relations, facilities, and business operations. Prior to joining Castlight Siobhan worked at Bain & Company, specializing in the health care and private equity practices. Siobhan began her career at the Kaiser Family Foundation as an investor responsible for managing the foundation’s endowment. Siobhan has an MBA from Stanford Graduate School of Business, MPA from the Harvard Kennedy School of Government and a BS from the Wharton School at the University of Pennsylvania.

  • John McCracken

    Chief Revenue Officer

    John McCracken is responsible for all commercial activities including demand generation and field marketing, sales, sales operations, strategic accounts and alliances, implementations, and customer marketing, success and support. McCracken joins Castlight after leading the sales team for Jive Software as worldwide senior vice president of sales, where he helped drive Jive’s growth through its IPO to establish its leadership in the social enterprise category. Prior to that, McCracken served as Senior Vice President of Sales for Inovis, and he has held executive management positions at Mercury Interactive Corporation, CheckFree Corporation, and American Express. McCracken received a BBA in marketing and marketing/finance from The University of Texas at Austin.

  • Jeremy Bauer

    Chief Information Officer and Chief Security Officer

    Jeremy leads IT and security efforts. This includes information security for all of Castlight corporate and Health Benefits Platform. Previously, Jeremy was Vice President of Global Cloud Services at SuccessFactors. He has over 15 years experience in IT including SaaS, security, compliance, service delivery and global cloud operations.Jeremy earned his Bachelors in Computer Science from Bemidji St. University.

  • Neeraj Gupta

    Senior Vice President, Engineering

    Neeraj is a long-time technologist and leads engineering at Castlight. Before joining Castlight, Neeraj was SVP, Product and Engineering at Apcera, an industry leader for providing a secure and policy driven trusted cloud platform. Prior to Apcera, Neeraj was SVP, Product and Engineering at Appcelerator, an enterprise mobile, analytics and cloud platform company. Prior to Appcelerator, he held various leadership roles at Particle Code, Spike Source and Oracle and technical roles at Informix and other companies. He earned a bachelor’s degree in Computer Science from I.E.T. India and a master’s degree in business administration from Haas School of Business, UC Berkeley.

  • Kristin Torres Mowat

    Senior Vice President, Plan Development and Data Operations

    Kristin leads Castlight’s efforts to forge and manage relationships with health plans and pharmacy benefit managers. This includes the operations to support the ongoing data sharing and co-development efforts to service our shared customers. Previously, Kristin was vice president at DaVita HealthCare Partners, a Fortune 500 and one of the largest national healthcare providers. She was responsible for corporate strategy, Falcon EHR (electronic health records business), and recruiting for the Redwoods Leadership Development Program. She co-led due diligence in DaVita’s $4.4B merger with HealthCare Partners. Kristin earned her bachelors in international relations and minor in human biology from Stanford University. After a consulting career at Bain & Co. and The Bridgespan Group, Kristin worked at Chiron Corporation before returning to Stanford to earn her MBA and JD. She serves on the executive board of Spark, a non-profit engaging at-risk youth in California.

  • Maeve O’Meara

    Senior Vice President, Products

    Maeve is responsible for product strategy and the product roadmap. Previously, Maeve was a venture capital investor at Highland Capital Partners, where she focused on investments in healthcare IT and services and the consumer internet markets. Maeve began her career at Bain & Company, where she specialized in healthcare provider and consumer strategy. Maeve also spent time at Generation Health, where she led original product design and development. Maeve has an MBA from Stanford Graduate School of Business and a BA from the University of Virginia.

  • Jonathan Rende

    Chief Research and Development Officer

    Jonathan Rende leads all R&D activities at Castlight Health, including product, engineering, information technology and security, strategic data operations, and analytics. Prior to joining, Rende was the Executive Vice President of Products and Marketing at Keynote, a global leader in cloud–based testing, monitoring, and analytics for mobile and web applications. With over 20 years of experience in the industry, Rende has held senior level product engineering and management roles at Appcelerator, HP, Mercury Interactive and Informix. This includes serving as Vice President and General Manager for HP Software’s $1 billion Application Lifecycle Management business, where he was responsible for engineering and products. He holds a bachelor of science in engineering from the University of California, Davis and an MBA from Santa Clara University.

  • Vicki Ryan

    Chief People Officer

    Vicki Ryan is responsible for leading all aspects of human resources as chief people officer at Castlight Health, including talent management, compensation and benefits, training and development, change management, and employee engagement. She has held senior HR executive positions, both domestically and internationally, and at successful high-growth technology and services organizations, ranging from start-ups to Fortune 150 corporations. Among her past leadership roles, Vicki served as chief people officer at Jive Software, global vice president of people at LumaSense Technologies, vice president of people for Mercury Interactive, which was acquired by HP. Vicki holds a bachelor of science in business from San Jose State University.

  • Nita Sommers

    Chief Strategy Officer

    Nita Sommers is the chief strategy officer for Castlight, overseeing the company’s strategy, corporate development and business development functions. During her tenure at Castlight, Nita has made many critical contributions to the company’s growth through her leadership in early sales activities, major ecosystem partnerships, and company financings, and most recently served as vice president, corporate and business development. Nita was an early employee at athenahealth, and worked at McKesson Corporation and McKinsey & Company prior to joining Castlight. Nita has an MBA from Stanford Graduate School of Business and a BA from Harvard University.

  • Joe Taborek

    Senior Vice President, Sales

    Joe Taborek leads the sales team at Castlight Health as senior vice president of sales. Taborek most recently served as area vice president where he drove Castlight’s growth in its largest geography. Prior to joining Castlight, Taborek served in a number of sales leadership and management positions at Jive Software, Accenture, Hewlett Packard, Mercury Interactive and Network Associates. Taborek earned his BS in Finance from Indiana University.

  • Chad Williams

    Senior Vice President, Customer Experience

    Chad leads our Customer Experience team which includes Implementation, Customer Success and Customer Support organizations. Prior to joining Castlight, Chad was vice president of global professional services for Advent Software that delivered project management, consulting, custom reporting/applications, and product upgrades to Advent’s worldwide customer base. During Chad’s 16 years with Advent, he held several leadership positions across the professional services, product management, pre-sales consulting, renewals and the support organizations. Prior to Advent, Chad worked in solution sales roles for a national software/hardware re-seller and in the security industry. Chad earned his BS from Indiana University.