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Internal Medicine Providers in Chicago, IL

Browse 2,870 Internal Medicine providers listed in NPPES with a practice address in Chicago, Illinois.

2,870 Healthcare Providers

How Chicago compares with the U.S.

Chicago has 106 clinicians in Internal Medicine per 100,000 residents, 2.4 times the U.S. rate of 44.

That is 2,870 active clinicians in Internal Medicine with a practice address in Chicago, for a population of 2,711,226.

The Illinois rate is 57 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.

94% of clinicians in Internal Medicine in Chicago listed in the CMS Medicare file (1,106 of 1,172) accept Medicare assignment. That is similar to the Illinois share of 96%.

Only 1,172 of 2,870 active clinicians in Internal Medicine in Chicago 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.

33% of clinicians in Internal Medicine in Chicago listed in the CMS Medicare file (381 of 1,172) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the Illinois share of 35%.

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 Chicago, IL

Source: CMS PECOS
PECOS Enrolled Specialists 2,025 In Chicago, IL
Part B Lab & Imaging Eligible 2,194 Diagnostic Referrals
DME Ordering Eligible 2,275 Durable Medical Equipment
Home Health Agency Referrals 2,194 HHA Ordering Eligible
Showing 1โ€“20 of 2,870 providers
With recent CMS data first, then Aโ€“Z

Dr. Elias Abate , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1901 W Harrison St, Chicago, IL 606123714
Phone: 3128646000
NPI Identifier 1336712199
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Dr. Maliha Abbas , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1135 S Delano Ct E Ste A201, Chicago, IL 606053482
Phone: 3129263627
NPI Identifier 1174963920
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Dr. Zareena Abbas , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
5140 N California Ave Ste 505, Chicago, IL 606252577
Phone: 6309959290
NPI Identifier 1427078872
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Dr. Abu Fahad Abbasi , MD

Internal Medicine

Active NPI Status
2525 S Michigan Ave, Chicago, IL 606162315
Phone: 3125672000
NPI Identifier 1083243877
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Dr. Ayesha Abbasi , MD

Internal Medicine

Active NPI Status
1901 W Harrison St, Chicago, IL 606123714
Phone: 3128646000
NPI Identifier 1376216705
View Full Profile

Ahmed Abdelfattah

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2900 N Lake Shore Dr, Chicago, IL 606575640
Phone: 6468277377
NPI Identifier 1245839729
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Dr. Zainab Abdul-Rahim , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
5841 S Maryland Ave Ste Mc7082, Chicago, IL 606371465
Phone: 7737026840
NPI Identifier 1336521657
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Nabil Abou Baker

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
5841 S Maryland Ave, Chicago, IL 606371443
Phone: 8888240200
NPI Identifier 1750724720
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Dr. Anub Alex Abraham , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1447 N Bosworth Ave Apt 1, Chicago, IL 606428633
Phone: 3123397121
NPI Identifier 1710143904
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Dr. Richard Abrams , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1700 W Van Buren St, Suite 500, Chicago, IL 606123218
Phone: 3125632875
NPI Identifier 1659473650
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Dr. Ahmed Abuhasna , DO

Internal Medicine

Active NPI Status
3134 N Clark St, Chicago, IL 606574414
Phone: 3127664949
NPI Identifier 1841985025
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Ahmad Abu Homoud

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1950 W. Polk Street, Professional Building 8th Floor, Chicago, IL 60612
Phone: 3123230198
NPI Identifier 1568872273
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Dr. Pascal Accoh , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1700 W Van Buren St Fl 5, Chicago, IL 606125500
Phone: 3125632875
NPI Identifier 1508360280
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Dr. Jyothi Achankunju , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2525 S Michigan Ave, Chicago, IL 606162315
Phone: 3125672000
NPI Identifier 1457625303
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Dr. Ronald Ackermann , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
675 N Saint Clair St, Ste. 18-200, Chicago, IL 606115975
Phone: 3126958630
NPI Identifier 1629029210
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Mary Elizabeth Acosta

Internal Medicine

Active NPI Status
5841 S. Maryland Ave., M/c 7082, Chicago, IL 606371443
Phone: 7737024145
NPI Identifier 1932660412
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Dr. John Acquaye-Awah , MD

Internal Medicine

Active NPI Status
730 S Clark St, Unit 403, Chicago, IL 606051743
Phone: 7738070555
NPI Identifier 1386660322
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Dr. Adekonla Tolulope Adegunsoye , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2545 S King Dr, Chicago, IL 606162441
Phone: 3128425535
NPI Identifier 1861712903
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Adeola Adetunji

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1357 W 103rd St, Chicago, IL 606432392
Phone: 7732380800
NPI Identifier 1497383814
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Dr. Christine Adib , MD

Internal Medicine

Active NPI Status
5841 S Maryland Ave Rm L-325c, Chicago, IL 606371443
Phone: 7737020416
NPI Identifier 1851089445
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Frequently Asked Questions about Internal Medicine in Chicago

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 Illinois 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.