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. Wentao Hong, MDUrbana, IL · No drug or device payments recorded (2025) ·
(217) 383-3129 Dr. William Cifuentes, MDUrbana, IL · No drug or device payments recorded (2025) ·
(217) 333-3264 Dr. Yannick KadiaUrbana, IL · No drug or device payments recorded (2025) ·
(217) 337-2000 Dr. Yeonjoo ChoiUrbana, IL · No drug or device payments recorded (2025) ·
(217) 383-3311 Dr. Yonatan Segev, MDUrbana, IL · No drug or device payments recorded (2025) ·
(217) 383-3129 Dr. Zeeshan Imtiaz, MBBSUrbana, IL · No drug or device payments recorded (2025) ·
(217) 383-4633 Dr. Brent Schwarm, M.D.Vandalia, IL · No drug or device payments recorded (2025) ·
(618) 283-1231 Dr. Michael Darmadi, MDVandalia, IL · $826 in drug and device payments (2025) ·
(618) 283-4445 Dr. Alan Aronson, MDVernon Hills, IL · No drug or device payments recorded (2025) ·
(847) 941-7600 Dr. Anna Giorgetti, M.D.Vernon Hills, IL · No drug or device payments recorded (2025) ·
(847) 941-7900 Dr. Bernard Stevens, MDVernon Hills, IL · No drug or device payments recorded (2025) ·
(847) 367-0843 Dr. Howard Baker, D.O.Vernon Hills, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 535-7157 Dr. Inna Podoksik, MDVernon Hills, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 941-7600 Dr. John Kiriklakis, M.D.Vernon Hills, IL · No drug or device payments recorded (2025) ·
(847) 941-7600 Dr. Julia Ratner, M.D.Vernon Hills, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 941-7600 Dr. Kemal KucukVernon Hills, IL · No drug or device payments recorded (2025) ·
(706) 506-6870 Dr. Louis Kanter, MDVernon Hills, IL · $211 in drug and device payments (2025) · Telehealth ·
(847) 918-2400 Dr. Nadeem Alavi, DOVernon Hills, IL · $903 in drug and device payments (2025) · Telehealth ·
(847) 941-7900 Dr. Neal Shah, M.D.Vernon Hills, IL · $78 in drug and device payments (2025) · Telehealth ·
(847) 535-7157 Dr. Rafa Adi, M.D.Vernon Hills, IL · No drug or device payments recorded (2025) ·
(847) 362-5344 Dr. Steven Schubert, M.D.Vernon Hills, IL · $1,268 in drug and device payments (2025) · Telehealth ·
(847) 362-5353 Dr. Steven Witzel, MDVernon Hills, IL · No drug or device payments recorded (2025) ·
(847) 535-7157 Dr. Steve Sesterhenn, MDVernon Hills, IL · No drug or device payments recorded (2025) ·
(847) 644-7845 Dr. Susan Thomas, MDVernon Hills, IL · $137 in drug and device payments (2025) · Telehealth ·
(847) 941-7600 Dr. Tommy Kwak, M.D.Vernon Hills, IL · $8,100 in drug and device payments (2025) · Telehealth ·
(847) 200-1002 Dr. Vincent Fang, MDVernon Hills, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 941-7600 Dr. Alfonso David, M.D.Vienna, IL · No drug or device payments recorded (2025) ·
(618) 658-8331 Dr. Abdul Razzaq, MDVilla Park, IL · No drug or device payments recorded (2025) ·
(630) 832-9000 Dr. Inna Milgram, MDVilla Park, IL · $860 in drug and device payments (2025) ·
(630) 832-9000 Dr. Muhammad Sharif, M.D.Villa Park, IL · $124 in drug and device payments (2025) ·
(630) 682-0780 Dr. Vittal Chapa, MDVirden, IL · No drug or device payments recorded (2025) ·
(217) 965-5481 Dr. Jean Houlihan, MDWarrenville, IL · $70 in drug and device payments (2025) · Telehealth ·
(630) 432-6180 Dr. Charles BoleyWashington, IL · No drug or device payments recorded (2025) · Telehealth ·
(309) 886-4000 Dr. David HallWashington, IL · No drug or device payments recorded (2025) ·
(309) 886-4000 Dr. Mallory Kelly, M.D.Washington, IL · No drug or device payments recorded (2025) ·
(217) 502-2672 Dr. Matthew GormanWashington, IL · No drug or device payments recorded (2025) ·
(309) 886-4000 Dr. Sinamis Idrei, MDWaterman, IL · No drug or device payments recorded (2025) ·
(815) 264-3484 Dr. Luis Planas, MDWauconda, IL · No drug or device payments recorded (2025) ·
(847) 526-2661 Dr. Abdul Aziz, MDWaukegan, IL · $92 in drug and device payments (2025) ·
(847) 662-1112 Dr. Astrida Nikurs, MDWaukegan, IL · No drug or device payments recorded (2025) ·
(847) 377-8440 Dr. Elizabeth Simon, MDWaukegan, IL · No drug or device payments recorded (2025) ·
(847) 249-0600 Dr. Elliott Kroger, MDWaukegan, IL · No drug or device payments recorded (2025) ·
(847) 220-4103 Dr. Evgenii Raikovskii, MDWaukegan, IL · No drug or device payments recorded (2025) ·
(847) 360-4303 Dr. Harry Ginsberg, MDWaukegan, IL · No drug or device payments recorded (2025) ·
(847) 377-8440 Dr. John Kyncl, MDWaukegan, IL · $2,077 in drug and device payments (2025) · Telehealth ·
(847) 662-7788 Dr. Josia HenryWaukegan, IL · No drug or device payments recorded (2025) ·
(847) 360-4111 Dr. Kokeela Rathi, MDWaukegan, IL · $22 in drug and device payments (2025) ·
(847) 377-8400 Dr. Miloslava Kyncl, MDWaukegan, IL · $1,369 in drug and device payments (2025) · Telehealth ·
(847) 662-7788 Dr. Patricia Young, MDWaukegan, IL · No drug or device payments recorded (2025) ·
(847) 377-8440 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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