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. Charles Welford, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 398-9386 Dr. Christine Simaytis, M.D.Rockford, IL · No drug or device payments recorded (2025) ·
(815) 227-0081 Dr. Craig Rogers, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 971-2000 Dr. Dale Gray, M.D.Rockford, IL · No drug or device payments recorded (2025) ·
(815) 962-0633 Dr. Daniel Chamberlain, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 636-6400 Dr. Daniel Herdeman, MDRockford, IL · No drug or device payments recorded (2025) ·
(779) 696-0300 Dr. David Mitchell, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 971-2000 Dr. Dawn Mellish, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 490-1600 Dr. Dileep Kumar Reddy RegallaRockford, IL · No drug or device payments recorded (2025) ·
(815) 381-7715 Dr. Ehsun Naeem, MDRockford, IL · $1,402 in drug and device payments (2025) ·
(815) 397-7212 Dr. Erin OzminkowskiRockford, IL · $24 in drug and device payments (2025) ·
(815) 971-6364 Dr. Fahrettin Covut, M.D.Rockford, IL · No drug or device payments recorded (2025) · Telehealth ·
(779) 696-9400 Dr. Francisco Miyares, M.D.Rockford, IL · No drug or device payments recorded (2025) ·
(815) 668-7810 Dr. Gabriela Stepinska Generette, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 971-6364 Dr. Gautam Gupta, M.D.Rockford, IL · No drug or device payments recorded (2025) ·
(815) 229-1899 Dr. Glennetta Coleman, MDRockford, IL · $361 in drug and device payments (2025) ·
(815) 227-0055 Dr. Gordon Langejans, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 971-5000 Dr. Heidi Stelter, D.O.Rockford, IL · No drug or device payments recorded (2025) ·
(815) 561-1562 Dr. Humaed Mohammed Abdul, MDRockford, IL · No drug or device payments recorded (2025) ·
(779) 696-5476 Dr. Humaira Bari, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 971-4066 Dr. Irene Boswell, M.D.Rockford, IL · No drug or device payments recorded (2025) ·
(815) 332-1777 Dr. James Tobin, M.D.Rockford, IL · No drug or device payments recorded (2025) ·
(815) 971-4066 Dr. James Whalen, M. D.Rockford, IL · No drug or device payments recorded (2025) ·
(815) 398-0880 Dr. Jennis Iruke, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 381-7715 Dr. Jigar Patel, M.D.Rockford, IL · $24 in drug and device payments (2025) ·
(917) 769-2310 Dr. John Dorsey, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 971-7210 Dr. Jon Monkemeyer, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 971-2000 Dr. Jose Alberto Salazar, M.D.Rockford, IL · $168 in drug and device payments (2025) ·
(779) 696-0300 Dr. Joyce Cheng, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 226-2000 Dr. Jurate Bucha, M.D.Rockford, IL · No drug or device payments recorded (2025) ·
(779) 696-0300 Dr. Kamlesh Ramchandani, M.D.Rockford, IL · No drug or device payments recorded (2025) ·
(815) 962-0394 Dr. Kathleen KellyRockford, IL · No drug or device payments recorded (2025) ·
(815) 298-1069 Dr. Kushal Patel, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 971-4066 Dr. Larry Sy, MDRockford, IL · $125 in drug and device payments (2025) ·
(815) 490-1600 Dr. Leroy Bach, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 489-9508 Dr. Linda Razbadouski, M.D.Rockford, IL · No drug or device payments recorded (2025) · Telehealth ·
(797) 696-0300 Dr. Lydia Savic, MDRockford, IL · $20 in drug and device payments (2025) ·
(815) 381-7005 Dr. Maliha Syed, M.D., M.B.B.S.Rockford, IL · No drug or device payments recorded (2025) ·
(815) 971-4066 Dr. Maria Lozano VazquezRockford, IL · No drug or device payments recorded (2025) ·
(815) 490-1600 Dr. Mark Schneider, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 282-1339 Dr. Mary Brown, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 490-1600 Dr. Matilda Abu-saba, MDRockford, IL · $46 in drug and device payments (2025) ·
(815) 971-8990 Dr. Maxine Mathew, M.D.Rockford, IL · No drug or device payments recorded (2025) ·
(815) 971-7210 Dr. Mohammed Gandam, MDRockford, IL · $133 in drug and device payments (2025) ·
(770) 696-4400 Dr. Mubeen Khan Mohammed AbdulRockford, IL · $251 in drug and device payments (2025) ·
(815) 971-7000 Dr. Nadia HrynewyczRockford, IL · $21 in drug and device payments (2025) ·
(815) 971-9978 Dr. Obaid Shafiq, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 971-5000 Dr. Pamela Wetzel, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 636-6400 Dr. Peggy Shiels, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 490-1600 Dr. Peter Phelan, MDRockford, IL · No drug or device payments recorded (2025) ·
(779) 696-0300 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.
- 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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