HealthcareDiscovery.AI / Doctors / Massachusetts / Chelmsford

Doctors in Chelmsford, Massachusetts

Data updated monthly · Last refresh September 2026

165 licensed providers practice in Chelmsford across 28 specialties, and 32% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

165providers

28specialties

32%with industry payments

Specialties in Chelmsford

Internal Medicine in Chelmsford (32) · 31% received drug or device payments
Pediatrics in Chelmsford (24)
Ophthalmology in Chelmsford (10)
Registered Dietitian in Chelmsford (10)
Psychiatry in Chelmsford (9)
Otolaryngology in Chelmsford (9)
Urology in Chelmsford (8)
Chiropractor in Chelmsford (8)
Obstetrics & Gynecology in Chelmsford (7)
Family Medicine in Chelmsford (7)
Dermatology in Chelmsford (6)
Gastroenterology in Chelmsford (6)
Surgery in Chelmsford (5)
Allergy & Immunology in Chelmsford (4)
Acupuncturist in Chelmsford (4)
Allergy in Chelmsford (2)
Plastic Surgery in Chelmsford (2)
Geriatric Medicine (Internal Medicine) in Chelmsford (2)
MOHS-Micrographic Surgery in Chelmsford (1)
Rheumatology in Chelmsford (1)
Occupational Medicine in Chelmsford (1)
Nephrology in Chelmsford (1)
Colon & Rectal Surgery in Chelmsford (1)
Rehabilitation Chiropractor in Chelmsford (1)
Neurology in Chelmsford (1)
Hematology (Internal Medicine) in Chelmsford (1)
General Practice in Chelmsford (1)
Cardiovascular Disease in Chelmsford (1)

Common questions

How many doctors practice in Chelmsford, Massachusetts?

165 licensed providers with active NPI records list a practice address in Chelmsford, according to federal NPPES data refreshed monthly.

How many doctors in Chelmsford received drug or device company payments?

52 of 165 providers in Chelmsford (32%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

Other cities in Massachusetts

All Massachusetts specialties Ask Zach for help choosing

Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.