NPI Portal NPI Lookup & Verification

Internal Medicine in Amherst, MA

18 active Internal Medicine providers practice in Amherst, Massachusetts according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.

Internal Medicine providers in Amherst, MA
NPI Name Type Specialty Location
1033188636 Alan Berkenwald Individual Internal Medicine Physician Amherst, MA
1740259993 Alan Calhoun Individual Internal Medicine Physician Amherst, MA
1669536595 Amity Medical Associates Organization Internal Medicine Physician Amherst, MA
1659893402 Amity Medical Group, Inc. Organization Internal Medicine Physician Amherst, MA
1083612345 Anne Weaver Individual Internal Medicine Physician Amherst, MA
1841238649 Charles Hinckley Individual Internal Medicine Physician Amherst, MA
1003883513 Constance Lentz Individual Internal Medicine Physician Amherst, MA
1447358106 Denise Spence Individual Internal Medicine Physician Amherst, MA
1205957354 Donald Lundgren Individual Internal Medicine Physician Amherst, MA
1801926233 James Muspratt Individual Pulmonary Disease Physician Amherst, MA
1568598993 Katherine J. Atkinson, MD, PC Organization Internal Medicine Physician Amherst, MA
1326002833 Lesley Harrington Individual Internal Medicine Physician Amherst, MA
1669486395 Michelle Duffelmeyer Individual Internal Medicine Physician Amherst, MA
1831119478 Robert Vigderman Individual Internal Medicine Physician Amherst, MA
1972757946 Samah Jafari Individual Internal Medicine Physician Amherst, MA
1811316045 Shayne Taylor Individual Internal Medicine Physician Amherst, MA
1699775585 Stuart Chipkin Individual Endocrinology, Diabetes & Metabolism Physician Amherst, MA
1316145196 Yarima Santiago Individual Internal Medicine Physician Amherst, MA

Frequently asked questions

How many Internal Medicine providers are in Amherst, MA?
The latest NPPES snapshot lists 18 active Internal Medicine providers with a practice address in Amherst, Massachusetts.
How do I check a Internal Medicine provider's NPI in Amherst?
Open a profile below to see the NPI number, taxonomy code, and practice address, then verify against the official NPPES registry — every profile links directly to the CMS record.

Source: CMS NPPES (public data). Snapshot 2026-07-10.