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Internal Medicine Providers in Saint Louis, MO

Browse 942 Internal Medicine providers listed in NPPES with a practice address in Saint Louis, Missouri.

942 Healthcare Providers

How Saint Louis compares with the U.S.

Saint Louis has 327 clinicians in Internal Medicine per 100,000 residents, 7.3 times the U.S. rate of 44.

That is 942 active clinicians in Internal Medicine with a practice address in Saint Louis, for a population of 288,512.

The Missouri rate is 42 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 Saint Louis listed in the CMS Medicare file (451 of 464) accept Medicare assignment. That is similar to the Missouri share of 97%.

Only 464 of 942 active clinicians in Internal Medicine in Saint Louis appear in the CMS Medicare file, so this share describes that smaller group.

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.

25% of clinicians in Internal Medicine in Saint Louis listed in the CMS Medicare file (118 of 464) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the Missouri share of 21%.

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 Saint Louis, MO

Source: CMS PECOS
PECOS Enrolled Specialists 721 In Saint Louis, MO
Part B Lab & Imaging Eligible 751 Diagnostic Referrals
DME Ordering Eligible 774 Durable Medical Equipment
Home Health Agency Referrals 751 HHA Ordering Eligible
Showing 1โ€“20 of 942 providers
With recent CMS data first, then Aโ€“Z

Dr. Amer Hussein Abbas , MD

Internal Medicine

Active NPI Status
11125 Dunn Rd Ste 204, Saint Louis, MO 631366188
Phone: 6366252662
NPI Identifier 1508480666
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Dr. Fizza Abbas , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1 Barnes Jewish Hospital Plz, Saint Louis, MO 631101003
Phone: 3143625000
NPI Identifier 1588079230
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Dr. Catey Ashlyn Abbott , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1 Barnes Jewish Hospital Plz, Saint Louis, MO 631101003
Phone: 3143629096
NPI Identifier 1699355347
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Dr. Wael Mohammed Abduljaber , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
615 S New Ballas Rd, Saint Louis, MO 631418221
Phone: 3142516339
NPI Identifier 1174101489
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Dr. Sreenu Ada , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
10018 Kennerly Rd, Saint Louis, MO 631282106
Phone: 3145257275
NPI Identifier 1134171200
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Dr. Sarah Addison , MD

Internal Medicine

Active NPI Status
1 Barnes Jew Hosp Plz, Saint Louis, MO 631101003
Phone: 3143628065
NPI Identifier 1255017273
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Dr. Stuart R Adler , MD

Internal Medicine

Active NPI Status
11155 Dunn Rd, Ste 201e, Saint Louis, MO 631366150
Phone: 3143553175
NPI Identifier 1801819487
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Dr. Soha Afzal , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
10010 Kennerly Rd, Saint Louis, MO 631282106
Phone: 3145251328
NPI Identifier 1023696507
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Dr. Naman Agrawal , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
615 S New Ballas Rd, Saint Louis, MO 631418221
Phone: 3142516339
NPI Identifier 1558927749
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Dr. Jaime Agoo Aguinaldo , MD

Internal Medicine

Active NPI Status
3915 Watson Rd Ste 101, Saint Louis, MO 631091251
Phone: 3146445300
NPI Identifier 1407955099
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Dr. Ayaz Ahmad , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3015 N Ballas Rd, Saint Louis, MO 631312329
Phone: 3149965772
NPI Identifier 1629573142
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Dr. Bassam Albarcha , MD, FACP

Internal Medicine

Active NPI Status Accepts Medicare Assignment
915 N Grand Blvd, Saint Louis, MO 631061621
Phone: 3146524100
NPI Identifier 1821184193
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Youssef Albousen

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3655 Vista Ave, Saint Louis, MO 631102539
Phone: 3142578222
NPI Identifier 1497216436
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Dr. Asim M Ali , MD

Internal Medicine

Active NPI Status
3009 N Ballas Rd, Ste 100b, Saint Louis, MO 631312322
Phone: 3144321111
NPI Identifier 1821047218
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Dr. Saad Alkaade , MD

Internal Medicine

Active NPI Status
3933 S Broadway, Saint Louis, MO 631184601
Phone: 3143170600
NPI Identifier 1033433594
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Dr. Paul Altsheler , MD

Internal Medicine

Active NPI Status
3009 N Ballas Rd # 203a, Saint Louis, MO 631312322
Phone: 3147393990
NPI Identifier 1346225372
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Dr. Ram Sanjeev Alur , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
615 S New Ballas Rd, Saint Louis, MO 631418221
Phone: 3142516339
NPI Identifier 1386808798
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Dr. Mehdia Amini , MD

Internal Medicine

Active NPI Status
915 N Grand Blvd, Saint Louis, MO 631061621
Phone: 3146524100
NPI Identifier 1235627084
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Dr. Walter Anazonwu , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
916 Olive St, Saint Louis, MO 631011400
Phone: 3144369300
NPI Identifier 1316511223
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Dr. Peter I Angelin , MD

Internal Medicine

Active NPI Status
2345 Dougherty Ferry Rd, Saint Louis, MO 631223313
Phone: 3146554486
NPI Identifier 1225133440
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Frequently Asked Questions about Internal Medicine in Saint Louis

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 Missouri 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.