Providers
286
Locations
10
Specialties
12
Insurance Plans
38
About Mass General Brigham Medical Group Western Massachusetts Inc
Background and practice information
Mass General Brigham Medical Group Western Massachusetts INC is a large multi-specialty medical practice based in Northampton, MA, with 286 affiliated healthcare providers practicing across 10 locations.
The practice brings together providers across multiple specialties, including nurse practitioner, physician assistant, family practice, and anesthesiology. Its providers are in-network with 38 insurance plans, though coverage varies by individual provider and should be confirmed before scheduling.
Across its providers, the practice has a solid average Merit-based Incentive Payment System (MIPS) score of 78.9 out of 100, a quality measure published by the Centers for Medicare & Medicaid Services.
Practice Locations
10 locations
Mass General Brigham Medical Group Western Massachusetts IncPrimary
29 ELM ST, South Deerfield, MA 013731005
(413) 586-9866
Affiliations
Hospitals where providers at Mass General Brigham Medical Group Western Massachusetts Inc hold admitting privileges
Insurance Networks
Accepted insurance plans and networks
Mass General Brigham Medical Group Western Massachusetts Inc accepts 125 plans from 12 insurers, including Cigna, Aetna, Humana.
Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.
Quality & Performance
Specialties at Mass General Brigham Medical Group Western Massachusetts Inc
Provider specialties represented at this practice
Healthcare Providers in South Deerfield
4 providers practice here
Frequently Asked Questions
Common questions about Mass General Brigham Medical Group Western Massachusetts Inc
How many providers are at Mass General Brigham Medical Group Western Massachusetts INC?
Mass General Brigham Medical Group Western Massachusetts INC has 286 affiliated healthcare providers across 10 locations. You can browse the full provider roster, with specialties and locations, on this page.
What specialties does Mass General Brigham Medical Group Western Massachusetts INC offer?
The practice includes providers in nurse practitioner, physician assistant, family practice, and anesthesiology, among others. Use the specialty filter on the provider list to find a specific type of provider.
What insurance does Mass General Brigham Medical Group Western Massachusetts INC accept?
Providers at Mass General Brigham Medical Group Western Massachusetts INC are collectively in-network with 38 insurance plans. Acceptance varies by individual provider, so confirm your specific plan with the office before your visit.
Does Mass General Brigham Medical Group Western Massachusetts INC have a quality rating?
The practice's providers have an average MIPS quality score of 78.9 out of 100, based on Centers for Medicare & Medicaid Services data. MIPS measures performance across quality, cost, care coordination, and use of health technology.
Where is Mass General Brigham Medical Group Western Massachusetts INC located?
Mass General Brigham Medical Group Western Massachusetts INC's primary location is in Northampton, MA, with 9 additional locations listed on this page. See the contact section for the full address and phone number.
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