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wbjournal.com | Book of Lists 2025 | Worcester Business Journal 51 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 2,051 (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 365 Plantation St., Biotech One, Worcester 01605 508-334-1000 • ummhealth.org 1,374 Nonprofit group owned by UMass Memorial Health; primary care and specialty providers Andrew Karson president 1998 (2) 3 Reliant Medical Group 5 Neponset St., Worcester 01606 508-852-0600 • reliantmedicalgroup.org 303 Multi-specialty medical group serving Central Mass. and MetroWest Thad Schilling president & chief medical officer 1929 4 Milford Regional Physician Group 9 Industrial Road, Suite 5, Milford 01757 508-473-1480 • milfordregionalphysicians.org 140 Multi-specialty provider offering internal medicine, pediatrics, family and adolescent medicine, cardiology, neurology, OB/GYN, orthopedics, pulmonology, urology, urogynecology, sleep medicine, sports medicine, rheumatology, endocrinology, allergy, otolaryngology, urgent care Patrick McSweeney president Elizabeth Siraco medical director 1992 5 Family Health Center of Worcester 26 Queen St., Worcester 01610 508-860-7700 • fhcw.org 83 (3) Community health center; primary and multi-specialty care, multilingual services Louis Brady president & CEO 1972 6 Saint Vincent Medical Group 10010K Shoppes Way, Northborough 01532 833-609-6707 • stvincentmedgroup.com 75 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 7 Charles River Medical Associates 600 Worcester Road, Suite 303, Framingham 01702 508-626-7437 • charlesrivermed.com 54 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 8 Heywood Medical Group 242 Green St., Gardner 01440 978-630-6104 • heywood.org 39 Multi-specialty and primary care group including cardiology, gastroenterology, OB/GYN, orthopedics, podiatry, urology, general surgery, pediatrics, pain management, endocrinology, addiction medication, rheumatology, neurology, diabetes, nutrition, infectious disease, occupational medicine, psychiatry and urgent care Rhonda Zbikowski vice president, ambulatory 1907 (4) 9 MetroWest Physician Services 260 Cochituate Road, Framingham 01701 833-609-6707 • metrowestphysicians.com 29 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 10 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 10 Edward M. Kennedy Community Health Center 115 NE Cutoff, Building 2, Suite 200, Worcester 01605 508-854-2122 • kennedychc.org 25 Federally-qualified community health center Stephen J. Kerrigan president & CEO 1972 12 Community Health Connections Inc. 326 Nichols Road, Fitchburg 01420 978-878-8100 • chcfhc.org 15 Multi-specialty provider group providing medical, dental, behavioral health, acupuncture, podiatry, optometry, nutrition, substance use disorder and urgent care services to all ages John A. DeMalia president & CEO 2002 Sources: Each group via survey as of Q2 2025 and group websites. Notes: N/A=not available. In November 2024, Steward Health Care Network and Steward Medical Group were sold to Rural Healthcare Group and rebranded as Revere Medical. The company did not respond to WBJ's survey by press time. (1) Physicians employed by the system's hospitals or medical groups and private practice (2) Year UMass Memorial Health formed (3) Data from WBJ's 2024 survey (4) Year Heywood Hospital founded -Compiled by: Heide Martin, hmartin@nebusinessmedia.com H E A L T 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.