Team Member

Patrick joined C3 following his stint at the Chief Strategy & Growth Officer for Atrius Health, where he also served as its Chief Financial Officer and Treasurer, and President of the Atrius Health Foundation. As CFO, Patrick led all aspects of the organization’s finances, strategic relationships, and joint ventures.He championed the return of the medical group to profitability in 2017 and … [Read more...] about Patrick Holland

Dr. Mohammad Dar, MD, affectionately known as “MoDar” by his friends and colleagues, was named C3’s Chief Medical Officer in December 2023. Dr. Dar previously served as the Senior Medical Director at MassHealth (Massachusetts Medicaid/CHIP), guiding delivery system reforms to further the program’s focus on population health and accountable care.  He is also the previous Chair of the … [Read more...] about Mohammad Dar

Dr. Gumpert is board certified in Family Medicine and Clinical Informatics. He is excited to implement and optimize the use of Epic, a best-in-class electronic health record, in Community Technology Cooperative’s 12 Federally Qualified Health Centers. He has over a decade of experience providing primary care to an underserved population and teaching medical students and residents. He also spent … [Read more...] about Richard Gumpert

Karen Serrago is the Chief Information Officer at Community Technology Cooperative (CTC) which is a subsidiary of Community Care Cooperative (C3). CTC is currently implementing Epic Systems across a cohort of FQHC’s in Massachusetts. Prior to her role at CTC, Karen worked at the Cambridge Health Alliance (CHA) as a Director of Epic Applications and Chair of the Telehealth Committee. Formerly, … [Read more...] about Karen Serrago

Aditya Mahalingam-Dhingra (he/him) is a mission-driven, innovation-minded healthcare executive with a decade of experience on the cutting edge of state and national Medicaid policy and delivery system reform. Aditya joined C3 from MassHealth (Massachusetts’ Medicaid and CHIP program), a $20B agency that provides health coverage for two million (or roughly one in every four) people in … [Read more...] about Aditya Mahalingam-Dhingra

Thomas Siepka has more than 20 years' of experience in Healthcare leading Pharmacy programs and services in ambulatory, acute care programs as well as work within accountable care organizations. Tom's prior leadership experience includes having served as the Chief Pharmacy Officer at Beth Israel Deaconess Medical Center in Boston as well as the Chief Pharmacy Officer for the Dartmouth Health … [Read more...] about Tom Siepka