Independent US Healthcare Provider Directory & Public Medical Database Patient Guides
Medical Specialty Listing

Internal Medicine Providers in Princeton, NJ

Browse 66 Internal Medicine providers listed in NPPES with a practice address in Princeton, New Jersey.

66 Healthcare Providers

How Princeton compares with the U.S.

Princeton has 215 clinicians in Internal Medicine per 100,000 residents, 4.8 times the U.S. rate of 44.

That is 66 active clinicians in Internal Medicine with a practice address in Princeton, for a population of 30,756.

The New Jersey rate is 50 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. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

97% of clinicians in Internal Medicine in Princeton listed in the CMS Medicare file (33 of 34) accept Medicare assignment. That is similar to the New Jersey 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.

74% of clinicians in Internal Medicine in Princeton listed in the CMS Medicare file (25 of 34) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the New Jersey share of 40%.

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 Princeton, NJ

Source: CMS PECOS
PECOS Enrolled Specialists 36 In Princeton, NJ
Part B Lab & Imaging Eligible 36 Diagnostic Referrals
DME Ordering Eligible 39 Durable Medical Equipment
Home Health Agency Referrals 36 HHA Ordering Eligible
Showing 1โ€“20 of 66 providers
With recent CMS data first, then Aโ€“Z

Dr. David R Barile , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
253 Witherspoon St, Princeton, NJ 085403211
Phone: 6094974000
NPI Identifier 1063461283
View Full Profile

Dr. Louis E Baxter , MD

Internal Medicine

Active NPI Status
742 Alexander Rd, Suite 105, Princeton, NJ 085406327
Phone: 6099191660
NPI Identifier 1962527051
View Full Profile

Dr. Erinn E Beagin , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
800 Bunn Dr Ste 302, Princeton, NJ 085401968
Phone: 6099211680
NPI Identifier 1619924388
View Full Profile

Dr. Barbara Ann Brown , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
731 Alexander Rd, Suite 200, Princeton, NJ 08540
Phone: 6096553800
NPI Identifier 1912926452
View Full Profile

Dr. Frances Y Chang , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
419 N Harrison St, Suite 201, Princeton, NJ 085403521
Phone: 6099249300
NPI Identifier 1316996960
View Full Profile

Dr. Savneet Kaur Chattha , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
727 State Rd, Suite 1, Princeton, NJ 085401444
Phone: 6099216410
NPI Identifier 1629055181
View Full Profile

Dr. Pei-Jon Chen , MD, MPH

Internal Medicine

Active NPI Status
Route 206 & Provinceline Road, Princeton, NJ 08543
Phone: 6092524111
NPI Identifier 1831223429
View Full Profile

Dr. Douglas P Corazza , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
727 State Rd, Suite 1, Princeton, NJ 085401444
Phone: 6099216410
NPI Identifier 1376520825
View Full Profile

Dr. Nataliya Dashevsky , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
256 Bunn Dr, Suite 3a, Princeton, NJ 085402859
Phone: 6096837773
NPI Identifier 1902857139
View Full Profile

Dr. Ernest De La Cruz , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
727 State Rd, Suite 1, Princeton, NJ 085401444
Phone: 6099216410
NPI Identifier 1821075334
View Full Profile

Dr. Jennifer Grantham Erskine , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
253 Witherspoon St, Lambert House 2nd Floor, Princeton, NJ 085403211
Phone: 2158174546
NPI Identifier 1477796811
View Full Profile

Dr. David Andrew Fein , MD

Internal Medicine

Active NPI Status
136 Main St, Princeton, NJ 085405735
Phone: 6094300752
NPI Identifier 1780721704
View Full Profile

Dr. Chandani D Fernando , MD

Internal Medicine

Active NPI Status
707 Alexander Rd, Ste 201, Princeton, NJ 08540
Phone: 6099190009
NPI Identifier 1679513501
View Full Profile

Dr. Tobe M Fisch , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
5 Plainsboro Road, Suite 300, Princeton, NJ 08536
Phone: 6098537272
NPI Identifier 1689608283
View Full Profile

Dr. Benjamin E Gitterman , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
419 N Harrison St, Suite 101, Princeton, NJ 085403521
Phone: 6099249300
NPI Identifier 1447349162
View Full Profile

Dr. Joyce H Glazer , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
419 N Harrison St, Princeton, NJ 085403521
Phone: 6099249300
NPI Identifier 1104915552
View Full Profile

Dr. Laura Hildebrant , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
727 State Rd, Suite 1, Princeton, NJ 085401444
Phone: 6099216410
NPI Identifier 1043212970
View Full Profile

Dr. Feroza Hossain , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
256 Bunn Dr, Suite 3 A, Princeton, NJ 085402859
Phone: 6096837773
NPI Identifier 1801847397
View Full Profile

Dr. Xingjia Hua , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
419 N Harrison St, Suite 101, Princeton, NJ 085403521
Phone: 6099249300
NPI Identifier 1689763971
View Full Profile

Dr. Vickie Hug , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
727 State Rd, Suite 1, Princeton, NJ 085401444
Phone: 6099216410
NPI Identifier 1235116781
View Full Profile

Frequently Asked Questions about Internal Medicine in Princeton

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 New Jersey 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.