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wbjournal.com | Book of Lists 2026 | Worcester Business Journal 43 Largest physician groups Ranked by number of participating physicians Physician group No. of physicians Description Chief administrator/ year founded 1 UMass Memorial Health - Managed Care Network 55 Lake Ave. North, Worcester 01605 508-334-1000 • ummhealth.org 2,649 (1) Primary and specialty care physicians, affiliated with UMass Memorial Health system, employed by their hospitals, medical groups or in independent private practice Andrew Karson chief physician executive 1999 2 UMass Memorial Medical Group (2) 365 Plantation St., Biotech One, Worcester 01605 508-334-1000 • ummhealth.org 1,541 Nonprofit group owned by UMass Memorial Health; primary care and specialty providers Andrew Karson president 1998 (3) 3 Reliant Medical Group 5 Neponset St., Worcester 01606 508-852-0600 • reliantmedicalgroup.org 293 Multi-specialty medical group serving Central Mass. and MetroWest Thad Schilling president & chief medical officer 1929 4 Family Health Center of Worcester 26 Queen St., Worcester 01610 508-860-7700 • fhcw.org 80 Community health center; primary and multi-specialty care, multilingual services Louis Brady president & CEO 1972 5 Heywood Medical Group 242 Green St., Gardner 01440 978-630-6104 • heywood.org 45 Multi-specialty and primary care group including cardiology, gastroenterology, OB/GYN, orthopedics, podiatry, urology, general surgery, pediatrics, pain management, endocrinology, addiction medicine, rheumatology, neurology, diabetes, nutrition, infectious disease, occupational medicine, psychiatry and urgent care Rhonda Zbikowski vice president, ambulatory 1907 (4) 6 Charles River Medical Associates 600 Worcester Road, Suite 303, Framingham 01702 508-626-7437 • charlesrivermed.com 44 Primary care and specialty providers in endocrinology, cardiology, hematology, geriatrics, pediatrics, infectious disease, sports medicine, oncology, rheumatology, nutrition, gynecology, gastroenterology and diabetes education Brian Parillo executive director 1995 7 Saint Vincent Medical Group 10010K Shoppes Way, Northborough 01532 833-609-6707 • stvincentmedgroup.com 35 Multiple location provider offering internal and family medicine, geriatrics, endocrinology, cardiology, interventional cardiology, cardiothoracic surgery, thoracic surgery, urology, pain medicine, OB/GYN, oncology, breast health services and general surgery Eric McBride CEO, Tenet Physician Resources Eastern Region 2005 8 Acton Medical Associates PC 321 Main St., Acton 01720 978-635-8800 • actonmedical.com 25 Adult and pediatric primary care provider with satellite offices in Harvard, Hudson and Littleton Deborah B. Kovacs chief medical officer & CEO 1955 9 Edward M. Kennedy Community Health Center 115 NE Cutoff, Building 2, Suite 200, Worcester 01605 508-854-2122 • kennedychc.org 20 Federally-qualified community health center Stephen J. Kerrigan president & CEO 1972 10 MetroWest Physician Services 260 Cochituate Road, Framingham 01701 833-609-6707 • metrowestphysicians.com 19 Internal and family medicine, OB/GYN, general and minimally invasive surgery, breast health, infectious disease; multiple MetroWest locations Eric McBride CEO, Tenet Physician Resources Eastern Region 2006 11 Community Health Connections Inc. 326 Nichols Road, Fitchburg 01420 978-878-8100 • chcfhc.org 15 Multi-specialty provider group providing medical, dental, behavioral health, podiatry, optometry, nutrition, substance use disorder and urgent care services to all ages John A. DeMalia president & CEO 1997 Sources: Each group via survey and group websites. Note: In November 2024, Steward Health Care's physician network was sold to the Rural Healthcare Group and rebranded Revere Medical. In May 2026, Revere Medical Group became Bookmark Medical, headquartered in Nashville, Tenn. The majority of Bookmark Medical's Mass. locations are outside of Central Mass. (1) Physicians employed by the system's hospitals or medical groups and private practices (2) In January 2026, Milford Regional Physician Group became part of UMass Memorial Medical Group. (3) Year UMass Memorial Health formed (4) Year Heywood Hospital founded -Compiled by: Heide Martin, hmartin@nebusinessmedia.com H E A LT H C A R E F O C U S WBJ Ensure your team has ALL ACCESS to WBJ. We offer discounted group subscriptions starting at 5 users. Reach out to us at circulation@wbjournal.com for a quote.