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Internal Medicine Providers in Somerville, MA

Browse 36 Internal Medicine providers listed in NPPES with a practice address in Somerville, Massachusetts.

36 Healthcare Providers

How Somerville compares with the U.S.

Somerville has 44 clinicians in Internal Medicine per 100,000 residents, close to the U.S. rate of 44.

That is 36 active clinicians in Internal Medicine with a practice address in Somerville, for a population of 81,036.

The Massachusetts rate is 97 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places.

100% of clinicians in Internal Medicine in Somerville listed in the CMS Medicare file (26 of 26) accept Medicare assignment. That is similar to the Massachusetts share of 96%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

58% of clinicians in Internal Medicine in Somerville listed in the CMS Medicare file (15 of 26) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the Massachusetts share of 48%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

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. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Internal Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine practitioners in Somerville, MA

Source: CMS PECOS
PECOS Enrolled Specialists 28 In Somerville, MA
Part B Lab & Imaging Eligible 28 Diagnostic Referrals
DME Ordering Eligible 30 Durable Medical Equipment
Home Health Agency Referrals 28 HHA Ordering Eligible
Showing 1โ€“20 of 36 providers
With recent CMS data first, then Aโ€“Z

Dr. Anthony Emilio Addesa , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
783 Somerville Ave, Somerville, MA 021433541
Phone: 8059711428
NPI Identifier 1538186119
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Dr. Andrew Angel , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
40 Holland St, Internal Medicine, Somerville, MA 021442705
Phone: 6176296350
NPI Identifier 1417927724
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Dr. Richard B Balaban , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
236 Highland Ave, Somerville, MA 021431495
Phone: 6175916300
NPI Identifier 1780793281
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Dr. Rachel J Berger , MD

Internal Medicine

Active NPI Status
40 Holland St, Internal Medicine, Somerville, MA 021442705
Phone: 6176296350
NPI Identifier 1326019456
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Dr. Jessamyn Blau , MD

Internal Medicine

Active NPI Status
300 Broadway, Somerville, MA 02145
Phone: 6172847000
NPI Identifier 1376960690
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Laura Obbard Brightman

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
300 Broadway, Somerville, MA 021452935
Phone: 6172847000
NPI Identifier 1801970546
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Dr. Erica Kristen Childs , MD

Internal Medicine

Active NPI Status
236 Highland Ave, Somerville, MA 021431495
Phone: 6175916300
NPI Identifier 1952579997
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Dr. Elisa Inmee Choi , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
40 Holland St, Somerville, MA 021442705
Phone: 6176296000
NPI Identifier 1942268362
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Dr. Pieter A Cohen , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
236 Highland Ave, Somerville, MA 021431495
Phone: 6175916300
NPI Identifier 1366482804
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Dr. David A Epstein , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
300 Broadway, Somerville, MA 021452935
Phone: 6172847000
NPI Identifier 1396753067
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Dr. Luis Marcelo Henkel , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
440 Foley St, Somerville, MA 021451213
Phone: 8572820777
NPI Identifier 1578787248
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Dr. Ruth P Hertzman-Miller , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
236 Highland Ave, Cha - Somerville Hospital Primary Care, Somerville, MA 021431495
Phone: 6175916300
NPI Identifier 1215982962
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Dr. Eleanor T Hobbs , MD

Internal Medicine

Active NPI Status
40 Holland St, Internal Medicine, Somerville, MA 021442705
Phone: 6176296350
NPI Identifier 1912975046
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Dr. Gregory A. Johnson , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
40 Holland St, Harvard Vanguard Medical Associates, Somerville, MA 021442705
Phone: 6176296350
NPI Identifier 1942213509
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Dr. Kavita Davina Ketwaroo , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
40 Holland St, Somerville, MA 021442705
Phone: 6176296000
NPI Identifier 1457614356
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Dr. Jude Herbert Koomson , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
26 Central St, Somerville, MA 021432827
Phone: 6175916300
NPI Identifier 1700052107
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Dr. Yong Hwa Lee , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
280 Highland Ave, Somerville, MA 021431324
Phone: 6175914700
NPI Identifier 1295849198
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Dr. Patrick Leong , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
440 Foley St, Somerville, MA 021451213
Phone: 8572820777
NPI Identifier 1447237003
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Dr. James C Liu , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
40 Holland St, Internal Medicine, Somerville, MA 021442705
Phone: 6176296350
NPI Identifier 1114983533
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Dr. Manuela C Matei , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
40 Holland St, Internal Medicine, Somerville, MA 021442705
Phone: 6176296350
NPI Identifier 1467404475
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Frequently Asked Questions about Internal Medicine in Somerville

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.