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. Kenneth Mcdonnell, M.D.Scott Afb, IL · No drug or device payments recorded (2025) ·
(618) 206-2225 Dr. Ronald Schaefer, M.D.Sheridan, IL · No drug or device payments recorded (2025) ·
(773) 343-2164 Dr. Kenneth Sagins, M.D.Sherman, IL · No drug or device payments recorded (2025) ·
(217) 528-7541 Dr. Jennifer Neville, M.D.Shiloh, IL · $211 in drug and device payments (2025) · Telehealth ·
(618) 236-8000 Dr. Laura Crandall, D.O.Shiloh, IL · $429 in drug and device payments (2025) · Telehealth ·
(618) 207-6900 Dr. Michael Guignon, M.D.Shiloh, IL · $196 in drug and device payments (2025) · Telehealth ·
(618) 607-1260 Dr. Anil Sekhar, M.D.,Shorewood, IL · No drug or device payments recorded (2025) ·
(312) 730-5630 Dr. Goyanka Ranganathan, MDSilvis, IL · No drug or device payments recorded (2025) ·
(309) 281-4000 Dr. Kinna Patel, M.D.Silvis, IL · No drug or device payments recorded (2025) ·
(309) 281-4000 Dr. Leighton Arcenas, M.D.Silvis, IL · No drug or device payments recorded (2025) ·
(309) 792-9363 Dr. Toluwanimi Aladesua, MDSilvis, IL · No drug or device payments recorded (2025) ·
(309) 281-4000 Dr. Alla Brodech, MDSkokie, IL · $254 in drug and device payments (2025) · Telehealth ·
(847) 763-1775 Dr. Anatoly Gorovits, M.D.Skokie, IL · No drug or device payments recorded (2025) ·
(847) 647-0355 Dr. Anshu Raj, M.DSkokie, IL · No drug or device payments recorded (2025) ·
(847) 677-1122 Dr. Anuj Lal, MDSkokie, IL · $2,724 in drug and device payments (2025) · Telehealth ·
(847) 679-6707 Dr. Ayesha Iqbal, MBBSSkokie, IL · No drug or device payments recorded (2025) ·
(847) 933-9183 Dr. Barbara Brotine, MDSkokie, IL · No drug or device payments recorded (2025) ·
(847) 674-4141 Dr. Betty Goldstein, M.D.Skokie, IL · No drug or device payments recorded (2025) ·
(847) 679-3411 Dr. Boris Sheynin, M.D.Skokie, IL · $43 in drug and device payments (2025) · Telehealth ·
(847) 982-9988 Dr. Branka O'sullivan, MDSkokie, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 933-3590 Dr. Busala Oke, MDSkokie, IL · $1,448 in drug and device payments (2025) · Telehealth ·
(773) 702-1234 Dr. Cara Culmer, MDSkokie, IL · No drug or device payments recorded (2025) ·
(847) 663-8351 Dr. Catherine Landers, M.D.Skokie, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 674-4090 Dr. Cheryl Schwartz, DO, PHDSkokie, IL · $1,851 in drug and device payments (2025) · Telehealth ·
(847) 679-6707 Dr. Chris Chon, MDSkokie, IL · No drug or device payments recorded (2025) ·
(847) 933-0500 Dr. Cliff Ireland, D.O.Skokie, IL · $2,285 in drug and device payments (2025) · Telehealth ·
(847) 679-6707 Dr. Constance Catellani, M.D.Skokie, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 673-5300 Dr. Daniel Rosenthal, MDSkokie, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 677-0212 Dr. Darryl Stern, M.D.Skokie, IL · $2,110 in drug and device payments (2025) · Telehealth ·
(847) 677-0212 Dr. Dong Kim, MDSkokie, IL · No drug or device payments recorded (2025) ·
(847) 410-8442 Dr. Ellen Fertelmeister, M.D.Skokie, IL · No drug or device payments recorded (2025) ·
(847) 410-2029 Dr. Foram Desai, M.D.Skokie, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 676-1112 Dr. Gregory Kaczmarek, MDSkokie, IL · $2,541 in drug and device payments (2025) · Telehealth ·
(847) 679-6707 Dr. Herbert Lang, MDSkokie, IL · No drug or device payments recorded (2025) ·
(847) 663-8420 Dr. Irena Chizhik, M.D.Skokie, IL · No drug or device payments recorded (2025) ·
(847) 679-3411 Dr. Jack Morgan, MDSkokie, IL · No drug or device payments recorded (2025) ·
(847) 679-9100 Dr. Janice Lupu, M.D.Skokie, IL · No drug or device payments recorded (2025) ·
(847) 677-4200 Dr. Jeffrey Grinblatt, MDSkokie, IL · $1,343 in drug and device payments (2025) ·
(847) 677-0212 Dr. Jeffrey Weinberg, M.D. Dr. Joseph Wyse, MDSkokie, IL · $1,961 in drug and device payments (2025) · Telehealth ·
(847) 679-6707 Dr. Kelly Stein, MDSkokie, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 676-1112 Dr. Leah Durst, M.D.Skokie, IL · No drug or device payments recorded (2025) ·
(224) 364-2273 Dr. Lisa Oldson, M.D.Skokie, IL · No drug or device payments recorded (2025) ·
(773) 814-8598 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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