Massachusetts NPI Lookup

Find Massachusetts healthcare providers by name or NPI number

Free NPI lookup for Massachusetts doctors, specialists, hospitals, and medical groups. Verify PECOS Medicare enrollment and LEIE exclusion status — no account required.

Try: NPI 1013968080 · John Adams · General Hospital

Massachusetts Providers Free · No account needed PECOS & LEIE verified Monthly updates

Data from NPPES (CMS) · PECOS & OIG LEIE verified · Monthly updates · No login required

New Massachusetts providers this month See who was newly enumerated in Massachusetts — updated weekly, free to explore. See new providers →

Massachusetts provider registry — at a glance

NPPES · June 2026 · #10 nationally

257,332Total providers

219,375Individuals · 85%

37,957Organizations · 15%

75,682PECOS-enrolled · 29%

Screened against the OIG LEIE exclusion list — 105 Massachusetts providers currently flagged.

Individual providers by gender

Female 159,067 (73%) Male 60,308 (27%)

Top cities

Boston58,935

Lexington32,079

Arlington19,695

Worcester17,903

Canton17,413

Burlington15,895

Milford10,006

Bedford7,396

Top specialties

MH Counselor21,481

Clin Social Worker20,612

Behavior Technician11,357

Internal Medicine11,147

Counselor9,857

Physical Therapist8,566

Registered Nurse7,064

Pharmacist6,688

Browse Massachusetts Doctors by Specialty

Family Medicine 207Q00000X Internal Medicine 207R00000X Pediatrics 208000000X Obstetrics & Gynecology 207V00000X Orthopaedic Surgery 207X00000X Psychiatry 2084P0800X Nurse Practitioner 363L00000X Chiropractor 111N00000X Dentist 122300000X View all specialties →

NPI Lookup for Massachusetts Healthcare Providers

The NPI Lookup tool provides free access to all Massachusetts healthcare provider NPI records from the NPPES NPI Registry (CMS). Search by provider name, NPI number, PAC ID, or organization to find doctors, hospitals, clinics, and specialists licensed in Massachusetts.

Every Massachusetts provider record includes the 10-digit National Provider Identifier (NPI), primary taxonomy code (specialty), practice address, PECOS Medicare enrollment status, and OIG LEIE exclusion flag. Data is refreshed monthly from official CMS and OIG sources.

Find NPI Numbers for Massachusetts Providers

Use the search form above to look up individual providers (Type 1 NPI) such as physicians, nurse practitioners, and therapists, or organizations (Type 2 NPI) such as hospitals, clinics, and group practices in Massachusetts.

Search Massachusetts Providers → Browse by Specialty → ← All States

Monitor Massachusetts for new provider openings. Get notified when a new doctor, clinic, or specialist enters the NPPES registry in your territory → Provider Signals Growth — start free