Our team
Mark Bertolini
Mark T. Bertolini is the Chief Executive Officer of Oscar Health, a leading insurer dedicated to making a healthier life accessible and affordable for all.
Mario Schlosser
Mario Schlosser is the Co-Founder & Chief Technology Officer at Oscar Health. He leads product and engineering, with a focus on building Oscar’s technology platform.
R. Scott Blackley
Scott Blackley is the Chief Financial Officer, where he oversees treasury, actuarial, financial reporting, capital management and investor relations.
Alessa Quane
Alessandrea (Alessa) Quane is the Executive Vice President, Chief Insurance Officer at Oscar. She has extensive experience in insurance markets through her nearly 25 year career at AIG.
Ranmali Bopitiya
Ranmali Bopitiya is the Chief Legal Officer at Oscar, where she oversees the company's Legal, Regulatory Affairs and Government Affairs functions.
Jesse Horowitz
Jesse Horowitz is Oscar's Chief Product Officer where he oversees the Product Management, Design and Product Solutions teams.
Rebecca Krouse
Rebecca Krouse is the Chief People Officer at Oscar, where she oversees talent acquisition, people strategy, learning and development, culture and engagement, total rewards, HR systems and operations.
Fausto Palazzetti
Fausto Palazzetti is the Chief Actuary at Oscar where he leads Oscar's actuarial department and has responsibility for rate setting, reserving, forecasting, reporting, and analytics.
Steve Wolin
Steve Wolin is the Chief Operating Officer at Oscar. He leads Oscar’s service organization, insurance operations, population health, pharmacy services, behavioral health, and virtual care.
Kiki Louis
Dr. Okiki Louis is the President of Oscar Medical Group where she oversees clinical operations for Oscar Health.
Dr. Sean Martin
Dr. Sean Martin is the Chief Medical Officer at Oscar Health where he is responsible for implementing Oscar’s clinical capabilities and enhancing the quality of care and outcomes for its members.
Vickie Baltrus
Victoria Baltrus is the Chief Accounting Officer at Oscar, where she oversees accounting, financial reporting, financial controls, finance operations and finance transformation activities.
Steve Kelmar
Steve Kelmar is the Executive Vice President and Chief of Staff to the CEO, where he is responsible for driving corporate strategy and running the executive management operating model.