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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. Heidi Wehlus, M.D.
Buffalo Grove, IL · $100 in drug and device payments (2025) · Telehealth · (847) 495-2311
Dr. Hoyee Chan, MD
Buffalo Grove, IL · No drug or device payments recorded (2025) · (847) 520-9424
Dr. Irina Goldvekht, D.O.
Buffalo Grove, IL · No drug or device payments recorded (2025) · Telehealth · (847) 618-0351
Dr. Jules Marks, D.O.
Buffalo Grove, IL · No drug or device payments recorded (2025) · (847) 537-7744
Dr. Juwon Lee, DO
Buffalo Grove, IL · No drug or device payments recorded (2025) · Telehealth · (847) 520-9424
Dr. Khrystyna Deka, MD
Buffalo Grove, IL · No drug or device payments recorded (2025) · (847) 459-1160
Dr. Lena Virasch, D.O.
Buffalo Grove, IL · No drug or device payments recorded (2025) · Telehealth · (847) 618-0351
Dr. Leo Gutt, M.D.
Buffalo Grove, IL · No drug or device payments recorded (2025) · (630) 542-7895
Dr. Lidiya Kupriyenko, MD
Buffalo Grove, IL · No drug or device payments recorded (2025) · Telehealth · (847) 459-1160
Dr. Margaret Fruhbauer, DO
Buffalo Grove, IL · No drug or device payments recorded (2025) · (847) 618-0351
Dr. Mark Charman, M.D.
Buffalo Grove, IL · $1,292 in drug and device payments (2025) · Telehealth · (847) 632-1880
Dr. Michael Unger, MD
Buffalo Grove, IL · No drug or device payments recorded (2025) · Telehealth · (847) 459-1160
Dr. Oksana Batejko, MD
Buffalo Grove, IL · No drug or device payments recorded (2025) · (847) 223-9494
Dr. Olga Zarkh, MD
Buffalo Grove, IL · No drug or device payments recorded (2025) · Telehealth · (847) 818-7700
Dr. Radha Soundarrajan, M.D.
Buffalo Grove, IL · No drug or device payments recorded (2025) · (847) 459-1160
Dr. Stuart Ferber, M.D.
Buffalo Grove, IL · No drug or device payments recorded (2025) · Telehealth · (847) 618-0351
Dr. Susan Nelson, M.D.
Buffalo Grove, IL · No drug or device payments recorded (2025) · Telehealth · (847) 618-0351
Dr. Thomas Heggen, MD
Buffalo Grove, IL · $19 in drug and device payments (2025) · (847) 850-5882
Dr. Wendi Marcus, M.D.
Buffalo Grove, IL · No drug or device payments recorded (2025) · (847) 618-0351
Dr. Agata Parfieniuk, MD
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Alicja Salman, M.D.
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Ana Nowell, MD
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Angela Montoya
Burbank, IL · $43 in drug and device payments (2025) · (312) 609-0300
Dr. Charmi Desai, DO
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Chethana Vence, M.D.
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Eric Czajkowski, M.D.
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Hema Mathur, MD
Burbank, IL · No drug or device payments recorded (2025) · (708) 952-4403
Dr. Humberto Deleon, MD
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Jalal Dahshe, MD
Burbank, IL · $64 in drug and device payments (2025) · (708) 425-3135
Dr. Jeffrey Hanson, MD, PHARMD
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Khursheed Gir, M.D.
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Khwaila Falaneh
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Krystyna Majkut
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Lakshmi Yelamanchili, M.D.
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Madhulika Saxena, M.D.
Burbank, IL · $560 in drug and device payments (2025) · Telehealth · (708) 422-9577
Dr. Marie Ellis, DO
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Meghan Donovan, MD
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Monica Para, MD
Burbank, IL · $200 in drug and device payments (2025) · (312) 609-0300
Dr. Muhammad Munir, MD
Burbank, IL · $201 in drug and device payments (2025) · (312) 609-0300
Dr. Omar Turk
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Rebecca Wilson, D.O.
Burbank, IL · $26 in drug and device payments (2025) · Telehealth · (312) 609-0300
Dr. Rhea Patel, DO
Burbank, IL · $200 in drug and device payments (2025) · (312) 609-0300
Dr. Sailokesh Pagadala, DO
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Sameena Akhtar, M.D.
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Sana Mohsin, DO
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Sandeep Chandra, M.D.
Burbank, IL · $724 in drug and device payments (2025) · Telehealth · (708) 422-9577
Dr. Shama Ali, M.D.
Burbank, IL · $200 in drug and device payments (2025) · (312) 609-0300
Dr. Steve Elmosa, D.O.
Burbank, IL · No drug or device payments recorded (2025) · (708) 952-0000
Dr. Subia Fasih, M.D.
Burbank, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Susie Kim, MD
Burbank, IL · $777 in drug and device payments (2025) · (312) 609-0300

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.

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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.