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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. Andrey Lev-weissberg, MD
Park Ridge, IL · $1,448 in drug and device payments (2025) · Telehealth · (847) 675-5834
Dr. Ann Stevoff, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-8080
Dr. Anu Dharod
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-5871
Dr. Aren Saini, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Ashwini Peruri, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-2210
Dr. Avni Dervishi
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Beau Brinckerhoff, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-8080
Dr. Beauty Etukudoh, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Bilal Ahmed
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Bruce Bernheim, MD
Park Ridge, IL · $365 in drug and device payments (2025) · Telehealth · (847) 318-2400
Dr. Chool Liyanapatabendi, MD
Park Ridge, IL · $58 in drug and device payments (2025) · (630) 366-6681
Dr. Christian Kreiger
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-2210
Dr. Christopher Bentsen, MD
Park Ridge, IL · $315 in drug and device payments (2025) · (847) 318-9340
Dr. Christopher Markelz, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Claude Hamilton, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (224) 938-9264
Dr. Cordus Easington, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-1680
Dr. Danielle Gratza, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Daniel Michniuk, DO
Park Ridge, IL · No drug or device payments recorded (2025) · Telehealth · (847) 318-9340
Dr. Daniel Sherlock, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Dannie Sieben, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (618) 267-1753
Dr. Davel Patel, DO
Park Ridge, IL · $200 in drug and device payments (2025) · (312) 609-0300
Dr. David Jun, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 627-5206
Dr. David Kushner, D.O.
Park Ridge, IL · $22,737 in drug and device payments (2025) · (847) 723-8080
Dr. Doris Nussenbaum, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-8080
Dr. Douglas Mills, D.O.
Park Ridge, IL · $1,195 in drug and device payments (2025) · (847) 723-5871
Dr. Duc Quynh Ho, DO
Park Ridge, IL · No drug or device payments recorded (2025) · Telehealth · (814) 474-7769
Dr. Edmond Mila, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Edward Hsi, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 296-3577
Dr. Elizabeth Kojak
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-2210
Dr. Ellen Aleksandrovich, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · Telehealth · (847) 318-2500
Dr. Eric Cho, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Eric Pales, M.D.
Park Ridge, IL · $43 in drug and device payments (2025) · Telehealth · (847) 768-9300
Dr. Ethan Anderson
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Evan Kang, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · Telehealth · (847) 318-9340
Dr. Gaurav Chaturvedi, MD
Park Ridge, IL · $501 in drug and device payments (2025) · (847) 318-9340
Dr. Gennadiy Elikman, MD
Park Ridge, IL · No drug or device payments recorded (2025) · Telehealth · (847) 723-1680
Dr. Giovanni Paolella, MD
Park Ridge, IL · $154 in drug and device payments (2025) · (847) 318-9340
Dr. Hannah Nuckols, D.O.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-8080
Dr. Hardeep Ahdi, D.O.
Park Ridge, IL · $847 in drug and device payments (2025) · (847) 318-9340
Dr. Hina Abid, M.D
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 299-7784
Dr. Hirali Shah, DO
Park Ridge, IL · No drug or device payments recorded (2025) · Telehealth · (847) 318-9340
Dr. Holly Weis, M.D.
Park Ridge, IL · $406 in drug and device payments (2025) · (847) 723-8077
Dr. Howard Becker, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-2500
Dr. Hussein Abourahma, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-2210
Dr. Istiklal Arikan, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 292-5200
Dr. Jadav Moradia, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 803-9393
Dr. Jaroslaw Leszczak, MD
Park Ridge, IL · $1,838 in drug and device payments (2025) · (847) 653-8413
Dr. Jason Thalheimer, M.D.
Park Ridge, IL · $198 in drug and device payments (2025) · Telehealth · (847) 318-9340
Dr. Jay Patel, DO
Park Ridge, IL · $107 in drug and device payments (2025) · (312) 609-0300
Dr. Jeffrey Prochot, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340

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.