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Internal Medicine Doctors in Illinois

Data updated monthly · Last refresh October 2026

7,189 Internal Medicine providers practice in Illinois, including 1,260 (18%) offering telehealth. The largest concentration is in Chicago. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

7,189providers
1,260telehealth
Chicagotop city

Internal Medicine by city in Illinois

Choose a city to see providers there.

Internal Medicine in Chicago2,841 providers
Internal Medicine in Maywood252 providers
Internal Medicine in Springfield196 providers
Internal Medicine in Evanston180 providers
Internal Medicine in Peoria171 providers
Internal Medicine in Oak Lawn169 providers
Internal Medicine in Park Ridge160 providers
Internal Medicine in Urbana142 providers
Internal Medicine in Rockford81 providers
Internal Medicine in Naperville73 providers
Internal Medicine in Mchenry72 providers
Internal Medicine in Berwyn68 providers
Internal Medicine in Skokie64 providers
Internal Medicine in Elgin61 providers
Internal Medicine in Oak Park59 providers
Internal Medicine in Glenview58 providers
Internal Medicine in Arlington Heights53 providers
Internal Medicine in Elmhurst48 providers
Internal Medicine in Decatur44 providers
Internal Medicine in Aurora44 providers
Internal Medicine in Long Grove42 providers
Internal Medicine in North Chicago41 providers
Internal Medicine in Joliet40 providers
Internal Medicine in Lombard38 providers

Internal Medicine providers in Illinois

Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Elsa Vazquez Melendez, MD
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-3863
Dr. Emily Horvath, MD
Peoria, IL · No drug or device payments recorded (2025) · (317) 502-3492
Dr. Faisal Ahmed, M.D.
Peoria, IL · No drug or device payments recorded (2025) · (309) 692-8100
Dr. Farhana Khan, M.D.
Peoria, IL · $121 in drug and device payments (2025) · Telehealth · (309) 683-5050
Dr. Farrah Gaston, DO
Peoria, IL · No drug or device payments recorded (2025) · (334) 412-6504
Dr. Fnu Sagar
Peoria, IL · No drug or device payments recorded (2025) · (309) 308-5195
Dr. Francis Mcbee-orzulak, MD
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-4940
Dr. Gabriela Ciofoaia, M.D.
Peoria, IL · No drug or device payments recorded (2025) · (309) 624-8818
Dr. Gene Hoerr, M.D.
Peoria, IL · No drug or device payments recorded (2025) · (309) 691-0256
Dr. Gerald Mcshane
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-7990
Dr. Ghaly Kerolus, MD
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-3292
Dr. Hasanki Warnakula, MD
Peoria, IL · $58 in drug and device payments (2025) · Telehealth · (309) 655-4940
Dr. Henry Dumbab, MD
Peoria, IL · No drug or device payments recorded (2025) · (309) 672-4977
Dr. Holly Vannitamby, DO
Peoria, IL · No drug or device payments recorded (2025) · Telehealth · (309) 693-3315
Dr. Imad Khan, MD
Peoria, IL · No drug or device payments recorded (2025) · (309) 624-6640
Dr. Isaac Tan, M.D.
Peoria, IL · No drug or device payments recorded (2025) · Telehealth · (217) 521-3074
Dr. Jacqueline Fischer, MD
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-3292
Dr. James Adams
Peoria, IL · No drug or device payments recorded (2025) · (309) 683-5050
Dr. James Bauer, M.D.
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-7888
Dr. James Dunneback, M.D.
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-3863
Dr. James Graumlich, MD
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-3292
Dr. Jamie Beversdorf, MD
Peoria, IL · $27 in drug and device payments (2025) · (309) 689-6093
Dr. Jason Taylor, MD
Peoria, IL · $83 in drug and device payments (2025) · (309) 655-6384
Dr. Jay Mathur, MD
Peoria, IL · No drug or device payments recorded (2025) · (309) 624-8818
Dr. Jeanne Smith, MD
Peoria, IL · No drug or device payments recorded (2025) · (309) 624-9690
Dr. Jeannette Gardner, MD
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-2000
Dr. Jeffrey Liang, M.D.
Peoria, IL · $18 in drug and device payments (2025) · (309) 243-8598
Dr. Jenecsis Castro-skoglund
Peoria, IL · No drug or device payments recorded (2025) · (309) 689-8370
Dr. Jessica Hanks, M.D.
Peoria, IL · No drug or device payments recorded (2025) · (309) 624-8818
Dr. Jillian Costello, DO
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-2000
Dr. John Houser
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-7990
Dr. John Robins, MD
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-2730
Dr. John Shallat
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-7990
Dr. John Voris, M.D.
Peoria, IL · $20 in drug and device payments (2025) · (309) 655-2000
Dr. Jordan Cascante, DO
Peoria, IL · No drug or device payments recorded (2025) · (405) 795-0557
Dr. Joseph Mackey, M.D.
Peoria, IL · $113 in drug and device payments (2025) · (309) 655-2000
Dr. Justin Kearney, M.D.
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-6384
Dr. Kaitlyn Brown, DO
Peoria, IL · $23 in drug and device payments (2025) · (309) 655-4940
Dr. Kashif Haque, M.D.
Peoria, IL · No drug or device payments recorded (2025) · (309) 672-5729
Dr. Kathleen Eichinger, M.D.
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-3863
Dr. Kavitha Jacob, M.D.
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-6384
Dr. Kayla Thomas, DO
Peoria, IL · No drug or device payments recorded (2025) · Telehealth · (309) 655-4940
Dr. Kaylee Rosenbaum
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-2731
Dr. Keerthana Palaniappa Sivakolundu, M.D
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-2730
Dr. Kirby Tobin, DO
Peoria, IL · $242 in drug and device payments (2025) · Telehealth · (309) 655-7728
Dr. Kody Dormire, DO
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-4940
Dr. Kristen Chambers-damm, M.D.
Peoria, IL · No drug or device payments recorded (2025) · Telehealth · (309) 683-5050
Dr. Larry Lindahl
Peoria, IL · No drug or device payments recorded (2025) · (309) 680-7600
Dr. Laura Roe, M.D.
Peoria, IL · No drug or device payments recorded (2025) · Telehealth · (309) 655-3863
Dr. Leena Geetha Adhikesavan, M.D
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-7900

Conditions Internal Medicine providers in Illinois commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Internal Medicine providers are in Illinois?

There are 7,189 Internal Medicine providers with active NPI records practicing in Illinois, according to federal NPPES data refreshed monthly.

Do Internal Medicine providers in Illinois offer telehealth?

Yes. 1,260 of the 7,189 Internal Medicine providers in Illinois (about 18%) report offering telehealth services in CMS data.

Which cities in Illinois have the most Internal Medicine providers?

Chicago (2,841), Maywood (252), Springfield (196) have the highest concentration of Internal Medicine providers in Illinois.

How many Internal Medicine providers in Illinois received drug or device company payments?

2,137 of 7,189 Internal Medicine providers in Illinois (30%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Internal Medicine providers in Illinois treat?

Internal Medicine providers commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

Do most Internal Medicine Doctors in Illinois work in independent practices or large health systems?

Among 3,097 Internal Medicine Doctors in Illinois enrolled in Medicare, 22% bill through a solo or small practice with fewer than 10 clinicians, 10% through a mid-size group of 10 to 99, and 68% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Internal Medicine Doctors in Illinois work at?

According to CMS facility affiliation records, the Illinois hospitals where the most Internal Medicine Doctors hold privileges are Northwestern Medicine Central Dupage Hospital in Winfield; Northshore University Healthsystem - Evanston Hospital in Evanston; Northwestern Memorial Hospital in Chicago.

Related reading on HealthcareDiscovery.AI

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Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Internal Medicine in Illinois? Get featured.