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. Maria Gonzalez, MDWheeling, IL · $140 in drug and device payments (2025) ·
(847) 229-0505 Dr. Michael Tsinman, M.D.Wheeling, IL · $1,075 in drug and device payments (2025) · Telehealth ·
(847) 962-7881 Dr. Yakov Ryabov, MDWheeling, IL · $1,883 in drug and device payments (2025) ·
(847) 419-1900 Dr. Alma Gonzalez, MDWillowbrook, IL · No drug or device payments recorded (2025) ·
(630) 805-2430 Dr. Anthony Delorenzo, D.O.Willowbrook, IL · $705 in drug and device payments (2025) · Telehealth ·
(630) 655-9555 Dr. Daniel Grzegorek, D.O.Willowbrook, IL · No drug or device payments recorded (2025) · Telehealth ·
(630) 325-4049 Dr. Muhammad Ali, MDWillowbrook, IL · $25 in drug and device payments (2025) ·
(855) 554-2545 Dr. Rathna Yallapragada, M.D.Willowbrook, IL · $95 in drug and device payments (2025) ·
(630) 323-8595 Dr. Roland Borrasi, MDWillowbrook, IL · No drug or device payments recorded (2025) ·
(815) 886-8037 Dr. Shirley Stilson, M.D.Willowbrook, IL · No drug or device payments recorded (2025) ·
(949) 370-7225 Dr. Karim Al-sabekWillow Springs, IL · No drug or device payments recorded (2025) ·
(516) 754-8822 Dr. Michael Muszynski, M.D. MPHWillow Springs, IL · No drug or device payments recorded (2025) ·
(708) 839-2321 Dr. Anat Lansky, MDWilmette, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 986-6770 Dr. Anne Niedenthal, MDWilmette, IL · No drug or device payments recorded (2025) ·
(847) 853-8100 Dr. Bruce Kenamore, M.D.Wilmette, IL · No drug or device payments recorded (2025) ·
(847) 251-7603 Dr. Cynthia Bartholow, MD PCWilmette, IL · No drug or device payments recorded (2025) ·
(847) 853-9100 Dr. Elizabeth Anderson Parks, MDWilmette, IL · $496 in drug and device payments (2025) · Telehealth ·
(847) 875-9254 Dr. Gary Novak, M.D.Wilmette, IL · No drug or device payments recorded (2025) ·
(847) 251-3770 Dr. Glynn Elliott, MDWilmette, IL · $55 in drug and device payments (2025) · Telehealth ·
(847) 464-9050 Dr. Harry Poulos, M.D.Wilmette, IL · $141 in drug and device payments (2025) ·
(312) 423-4200 Dr. Jana MechurovaWilmette, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 986-6770 Dr. Jonathan Maks, MDWilmette, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 464-9050 Dr. Nancy Martin, M.D., PHARM.D., FCPWilmette, IL · $15 in drug and device payments (2025) ·
(224) 515-6177 Dr. Rajesh Jindal, M.D.Wilmette, IL · $26 in drug and device payments (2025) ·
(847) 464-9050 Dr. Stephen Lipschultz, MDWilmette, IL · No drug or device payments recorded (2025) ·
(847) 920-2200 Dr. Thomas Zatorski, MDWilmette, IL · No drug or device payments recorded (2025) ·
(847) 853-8100 Dr. Xiaoying Hensel, M.D.Wilmette, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 920-2200 Dr. Sanjay Chatrath, DOWilmington, IL · $1,655 in drug and device payments (2025) · Telehealth ·
(815) 476-5210 Dr. Alexandra Frogameni, M.D.Winfield, IL · No drug or device payments recorded (2025) ·
(630) 933-4700 Dr. Anthony Scavone, D.O.Winfield, IL · No drug or device payments recorded (2025) ·
(630) 456-7178 Dr. Candice Robb-rareyWinfield, IL · $89 in drug and device payments (2025) · Telehealth ·
(630) 653-0848 Dr. Cody Braun, MDWinfield, IL · No drug or device payments recorded (2025) ·
(630) 456-7178 Dr. Dane Volden, M.D.Winfield, IL · No drug or device payments recorded (2025) ·
(630) 456-7178 Dr. Jose Magana, MDWinfield, IL · No drug or device payments recorded (2025) · Telehealth ·
(630) 933-4700 Dr. Lisa Groskopf, DOWinfield, IL · $218 in drug and device payments (2025) · Telehealth ·
(630) 933-4700 Dr. Marc Conte-russian, D.O.Winfield, IL · No drug or device payments recorded (2025) · Telehealth ·
(630) 653-0848 Dr. Mary Westerholm, M.D.Winfield, IL · No drug or device payments recorded (2025) ·
(630) 653-0848 Dr. Maya PatelWinfield, IL · No drug or device payments recorded (2025) ·
(630) 456-7178 Dr. Michelle Jao, MDWinfield, IL · $391 in drug and device payments (2025) ·
(630) 260-0600 Dr. Patrick Towne, MDWinfield, IL · No drug or device payments recorded (2025) ·
(630) 653-0848 Dr. Radha Chirumamilla, M.D.Winfield, IL · $143 in drug and device payments (2025) ·
(630) 456-7178 Dr. Raj Ughreja, M.D.Winfield, IL · No drug or device payments recorded (2025) ·
(630) 933-4700 Dr. Rutuja Patel, D.O.Winfield, IL · $6,104 in drug and device payments (2025) · Telehealth ·
(630) 938-8266 Dr. Sana Jafri, MDWinfield, IL · No drug or device payments recorded (2025) ·
(630) 456-7178 Dr. Sarah ShapiroWinfield, IL · No drug or device payments recorded (2025) ·
(630) 933-4700 Dr. Shahnur Saiyad, D.OWinfield, IL · No drug or device payments recorded (2025) ·
(630) 456-7178 Dr. Susan Felber, M.D.Winfield, IL · No drug or device payments recorded (2025) ·
(630) 933-3503 Dr. Alexander Wind, MDWinnetka, IL · $20 in drug and device payments (2025) · Telehealth ·
(847) 446-1112 Dr. Alfred Torrence, MDWinnetka, IL · No drug or device payments recorded (2025) ·
(847) 446-1266 Dr. Carole Prete, MDWinnetka, IL · $220 in drug and device payments (2025) · Telehealth ·
(847) 441-6867 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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