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 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. Hassan Naom, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(872) 588-3000 Dr. Hatim HassanChicago, IL · No drug or device payments recorded (2025) ·
(888) 824-0200 Dr. Hazel Manzano, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 926-6000 Dr. Hazem Nassar, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(773) 293-7133 Dr. Heather Heiman, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 413-3627 Dr. Hector CajigasChicago, IL · No drug or device payments recorded (2025) ·
(312) 503-7975 Dr. Hector Lopez, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 257-5914 Dr. Hector Santos Argueta, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 864-6000 Dr. Heena Dev, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 942-4200 Dr. Heidi Baruch, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 569-7372 Dr. Helenaida Ortega, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 975-6718 Dr. Helen ZhangChicago, IL · $32 in drug and device payments (2025) · Telehealth ·
(866) 600-2273 Dr. Hemank Walia, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 766-4949 Dr. Hemanth Potluri, MD, PHDChicago, IL · No drug or device payments recorded (2025) ·
(773) 702-6840 Dr. Henry Danko, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 942-8900 Dr. Henry Palmer, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(773) 296-5424 Dr. Herlyne Das, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 702-6840 Dr. Hernan Cardozo Torres, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 766-4949 Dr. Hernan Marcos, MDChicago, IL · $4,544 in drug and device payments (2025) ·
(312) 864-6000 Dr. Hetal PatelChicago, IL · No drug or device payments recorded (2025) ·
(866) 600-2273 Dr. Hiba Noor, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 864-6000 Dr. Hillary Johnson, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 842-7117 Dr. Hilton Gordon, MDChicago, IL · No drug or device payments recorded (2025) · Telehealth ·
(773) 564-5082 Dr. Hina Farooq, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 878-8700 Dr. Hira MunirChicago, IL · No drug or device payments recorded (2025) ·
(312) 766-4949 Dr. Hiroaki Hayashi, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 563-2875 Dr. Hiwot Tebeje, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 864-6000 Dr. Hoangmai Phan, M.DChicago, IL · No drug or device payments recorded (2025) ·
(312) 951-0501 Dr. Hoang TranChicago, IL · No drug or device payments recorded (2025) ·
(312) 996-9593 Dr. Horia Stamboliu, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(773) 865-7825 Dr. Howard Bartman, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 738-6170 Dr. Howard Gordon, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 704-2885 Dr. Hsin I Chuang, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 874-6000 Dr. Htet Lin, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 484-4425 Dr. Hubert Fernandes, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 252-8989 Dr. Hugh Russell, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 488-3600 Dr. Hugo Alvarez, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 257-6770 Dr. Hugo Lopez Arevalo, MDChicago, IL · $383 in drug and device payments (2025) ·
(312) 864-6000 Dr. Hyun Cho-steinberg, MDChicago, IL · $79 in drug and device payments (2025) · Telehealth ·
(312) 926-3627 Dr. Ian Jones, DOChicago, IL · No drug or device payments recorded (2025) ·
(312) 864-6000 Dr. Ian Martinez FloresChicago, IL · $27 in drug and device payments (2025) · Telehealth ·
(312) 864-6000 Dr. Ibrahim Kashoor, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 864-6000 Dr. Ibrahim Khan, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 926-2000 Dr. Ibukunoluwa IbrahimChicago, IL · No drug or device payments recorded (2025) ·
(312) 996-2933 Dr. Ijaz Ahmad, M.D.Chicago, IL · $601 in drug and device payments (2025) · Telehealth ·
(773) 375-3312 Dr. Ikeoluwapo Bolakale-rufai, MD, MSChicago, IL · No drug or device payments recorded (2025) ·
(312) 926-2000 Dr. Ilina Andreeva, M.D.Chicago, IL · $243 in drug and device payments (2025) ·
(312) 423-4200 Dr. Il-ran Hwang, M.DChicago, IL · No drug or device payments recorded (2025) ·
(773) 542-2000 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.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
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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