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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. Oskar Zarnowski, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Peter Luzzi, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Peter Vayalil, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-8080
Dr. Pravesh Saini, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Radhika Patel, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Rafaello Vincens Ibrado
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Rafia Ali, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Raisa Munshi, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Ravi Amin, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-2210
Dr. Ravjot Virdi
Park Ridge, IL · $23 in drug and device payments (2025) · (847) 318-9340
Dr. Reem Alkhawam, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Reena Yadav
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-2210
Dr. Richard Herron, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Richard Irving
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Richard Powers, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 692-5126
Dr. Riyaan Khan, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Robert Zimmanck, MD
Park Ridge, IL · No drug or device payments recorded (2025) · Telehealth · (847) 318-9340
Dr. Ronak Patel, DO
Park Ridge, IL · $22 in drug and device payments (2025) · (847) 318-9340
Dr. Ronald Paul, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 904-2815
Dr. Rui Guan
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-2210
Dr. Ryan Bonn, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-2210
Dr. Saadiya Abdul Ahad Hawa, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Samiuddin Syed
Park Ridge, IL · $154 in drug and device payments (2025) · (847) 318-9340
Dr. Sarah Mohammed, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-5871
Dr. Sayali Sawant, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Shadi Zbeidi, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Shantesh Nalawadi, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-7413
Dr. Sharmeen Mustafa, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Simur Khurana
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Siu Yung Choy, D.O.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-8080
Dr. Steven Jacobsen, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Stuart Oserman, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Suhaib Hyder, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Supal Mehta, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-6020
Dr. Swathi Karri, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (630) 888-2616
Dr. Syed Haq
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Syed Raza, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Thomas Holmes, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Twinkle Patel, MD
Park Ridge, IL · $42 in drug and device payments (2025) · (847) 318-9340
Dr. Usamah Tabani, DO, MPH
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-2210
Dr. Victoria Montgomery, D.O.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Voula Asimacopoulos, MD
Park Ridge, IL · No drug or device payments recorded (2025) · Telehealth · (847) 292-5200
Dr. William Kardasis
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-2210
Dr. Yash Patel, DO
Park Ridge, IL · No drug or device payments recorded (2025) · (312) 609-0300
Dr. Yusairah Basheer
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Zachary Fainman, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-5475
Dr. Zain Sattar
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-2210
Dr. Zeena Thakkar
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 318-9340
Dr. Jamaluddin Amanullah, M.D.
Pekin, IL · No drug or device payments recorded (2025) · (314) 971-5717
Dr. John Lindell, MD
Pekin, IL · No drug or device payments recorded (2025) · (309) 353-6301

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.