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Internal Medicine Providers in Westport, CT

Browse 23 Internal Medicine providers listed in NPPES with a practice address in Westport, Connecticut.

23 Healthcare Providers

How Westport compares with the U.S.

Westport has 84 clinicians in Internal Medicine per 100,000 residents, about 1.9 times the U.S. rate of 44.

That is 23 active clinicians in Internal Medicine with a practice address in Westport, for a population of 27,528.

The Connecticut rate is 72 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.

92% of clinicians in Internal Medicine in Westport listed in the CMS Medicare file (12 of 13) accept Medicare assignment. That is similar to the Connecticut share of 94%.

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.

69% of clinicians in Internal Medicine in Westport listed in the CMS Medicare file (9 of 13) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the Connecticut share of 34%.

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 Westport, CT

Source: CMS PECOS
PECOS Enrolled Specialists 13 In Westport, CT
Part B Lab & Imaging Eligible 14 Diagnostic Referrals
DME Ordering Eligible 15 Durable Medical Equipment
Home Health Agency Referrals 14 HHA Ordering Eligible
Showing 1โ€“20 of 23 providers
With recent CMS data first, then Aโ€“Z

Dr. Robert A Altbaum , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
333 Post Road West, Westport, CT 068802425
Phone: 2032260731
NPI Identifier 1285736124
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Dr. David H. Baum , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
333 Post Road West, Lower Level, Westport, CT 06880
Phone: 2035713000
NPI Identifier 1437175486
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Dr. Jill G. Denowitz , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
333 Post Road West, Lower Level, Westport, CT 06880
Phone: 2035713000
NPI Identifier 1215013941
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Dr. Jay A Horn , MD

Internal Medicine

Active NPI Status
333 Post Rd W, Westport, CT 068804701
Phone: 2032260731
NPI Identifier 1013093731
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Dr. Cristina Roxana Ionescu , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
333 Post Rd W, Westport, CT 068804754
Phone: 2032260731
NPI Identifier 1194017715
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Dr. Tyrrell Robert Jenkins , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
333 Post Rd W Lowr Level, Westport, CT 068804754
Phone: 2035713000
NPI Identifier 1699193219
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Dr. Nina S Karol , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
333 Post Road West, Lower Level, Westport, CT 06880
Phone: 2035713000
NPI Identifier 1548286818
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Dr. Blaine E Messing , MD

Internal Medicine

Active NPI Status
28 Cross Hwy, Westport, CT 068802140
Phone: 2035051492
NPI Identifier 1790704690
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Dr. Sandra Mini , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
333 Post Rd West, Ground Floor, Westport, CT 068804754
Phone: 2035713000
NPI Identifier 1255344198
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Dr. Mario Pinto , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
333 Post Rd W, Westport, CT 068804754
Phone: 2032260731
NPI Identifier 1235540428
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Dr. Steven W Ryder , MD

Internal Medicine

Active NPI Status
4 Ambler Rd W, Westport, CT 068803935
Phone: 2036957933
NPI Identifier 1104069798
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Dr. Robban Ariel Sica , MD

Internal Medicine

Active NPI Status
C/o West Port Integrative Medicine, Llc Suite 100, 1 Turkey Hill Road South, Westport, CT 06880
Phone: 2037997733
NPI Identifier 1144360629
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Dr. Richard A Singer , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
728 Post Rd E, Westport, CT 068805200
Phone: 2032913800
NPI Identifier 1922009638
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Dr. Warren Richard Steinberg , MD

Internal Medicine

Active NPI Status Telehealth Services Available
225 Main St, Westport, CT 068803216
Phone: 2032229533
NPI Identifier 1720113467
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Dr. Stephen Hammond Strong , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
333 Post Rd W, Westport, CT 068804754
Phone: 2032260731
NPI Identifier 1518313469
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Dr. Robert C. Teltser , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
333 Post Road West, Lower Level, Westport, CT 06880
Phone: 2035713000
NPI Identifier 1821291675
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Dr. Eva Rachelle Zimmerman , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
333 Post Rd W, Westport, CT 068804754
Phone: 2032260731
NPI Identifier 1366008740
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Dr. Fred H Block , MD

Internal Medicine

Active NPI Status
25 River Ln, Westport, CT 068801926
Phone: 2032220044
NPI Identifier 1316182694
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Dr. Robert D Dresdner , MD

Internal Medicine

Active NPI Status
333 Post Rd W, Westport, CT 068804701
Phone: 2032260731
NPI Identifier 1356443204
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Dr. Leslie J Fodeman , MD

Internal Medicine

Active NPI Status
12 Hillspoint Rd, Westport, CT 068804536
Phone: 2032263411
NPI Identifier 1730591777
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Frequently Asked Questions about Internal Medicine in Westport

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 Connecticut 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.