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Internal Medicine Providers in Amherst, MA

Browse 13 Internal Medicine providers listed in NPPES with a practice address in Amherst, Massachusetts.

13 Healthcare Providers

How Amherst compares with the U.S.

13 active clinicians in Internal Medicine list a practice address in Amherst, MA in the NPI registry.

Population data for this city are not available, so we do not compare it with the U.S. rate.

Too few clinicians in Internal Medicine in Amherst are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026.

Showing 1โ€“13 of 13 providers
With recent CMS data first, then Aโ€“Z

Dr. Alan D. Berkenwald , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
31 Hall Dr, Amherst, MA 01002
Phone: 4132568561
NPI Identifier 1033188636
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Dr. Alan J. Calhoun , MD

Internal Medicine

Active NPI Status
150 Infirmary Way, Amherst, MA 010039288
Phone: 4135775000
NPI Identifier 1740259993
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Dr. Charles Douglas Hinckley , MD

Internal Medicine

Active NPI Status
150 Infirmary Way, Amherst, MA 010039288
Phone: 4135775000
NPI Identifier 1841238649
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Dr. Yarima Sol Santiago , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
29c Cottage St, Amherst, MA 010021206
Phone: 4135498888
NPI Identifier 1316145196
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Dr. Denise Spence , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
100 University Dr, 1st Floor, Amherst, MA 010022357
Phone: 4135497080
NPI Identifier 1447358106
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Dr. Shayne Sebold Taylor , MD

Internal Medicine

Active NPI Status
17 Research Drive, Amherst, MA 010022178
Phone: 4135498400
NPI Identifier 1811316045
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Dr. Robert J Vigderman , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
31 Hall Dr, Amherst Medical Center, Amherst, MA 010022751
Phone: 4132568561
NPI Identifier 1831119478
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Dr. Michelle E Duffelmeyer , MD

Internal Medicine

Active NPI Status
150 Infirmary Way, Amherst, MA 010039288
Phone: 4135775000
NPI Identifier 1669486395
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Dr. Lesley W Harrington , MD

Internal Medicine

Active NPI Status
31 Hall Dr, Amherst, MA 010022751
Phone: 4132568561
NPI Identifier 1326002833
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Dr. Samah Jafari , MD

Internal Medicine

Active NPI Status
64 Heatherstone Rd, Amherst, MA 010021697
Phone: 4138350067
NPI Identifier 1972757946
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Dr. Constance B. Lentz , MD

Internal Medicine

Active NPI Status
150 Infirmary Way, Amherst, MA 010039288
Phone: 4135775000
NPI Identifier 1003883513
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Dr. Donald K Lundgren , MD

Internal Medicine

Active NPI Status
30 Chapel Rd, Amherst, MA 010023006
Phone: 4132560679
NPI Identifier 1205957354
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Dr. Anne C Weaver , MD

Internal Medicine

Active NPI Status
29 Cottage St, Suite C, Amherst, MA 010022172
Phone: 4135498888
NPI Identifier 1083612345
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Frequently Asked Questions about Internal Medicine in Amherst

How do I check a Internal Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Massachusetts licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.

Other Specialties in Amherst

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