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. Faisal Saeed, MDElgin, IL · $27 in drug and device payments (2025) · Telehealth ·
(847) 741-9800 Dr. Fausto Lora-mir, M.D.Elgin, IL · No drug or device payments recorded (2025) ·
(847) 931-7274 Dr. Ghazwan Shaaya, M.D.Elgin, IL · No drug or device payments recorded (2025) ·
(312) 609-0300 Dr. Gordon Newsom, M.D.Elgin, IL · $88 in drug and device payments (2025) · Telehealth ·
(847) 695-8100 Dr. Gregory Ostrom, M.D., PH.D.Elgin, IL · No drug or device payments recorded (2025) ·
(847) 741-0372 Dr. Heena Shyamani, M.D.Elgin, IL · $1,499 in drug and device payments (2025) ·
(847) 742-5530 Dr. Ilma Vahora, MDElgin, IL · $31 in drug and device payments (2025) · Telehealth ·
(847) 742-0792 Dr. Jacob Salman, M.DElgin, IL · No drug or device payments recorded (2025) ·
(312) 404-2105 Dr. Janice Wood, MDElgin, IL · No drug or device payments recorded (2025) ·
(847) 742-5920 Dr. Jawed Ehsan, MDElgin, IL · No drug or device payments recorded (2025) ·
(847) 742-0165 Dr. Jeffrey Garb, M.D.Elgin, IL · No drug or device payments recorded (2025) ·
(847) 888-1914 Dr. Jerry Myrda, DOElgin, IL · $2,018 in drug and device payments (2025) ·
(847) 742-3120 Dr. Justin Macmillan, DOElgin, IL · No drug or device payments recorded (2025) ·
(224) 783-2525 Dr. Karen Catching, M.D.Elgin, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 214-5100 Dr. Kiran Ijaz, MDElgin, IL · No drug or device payments recorded (2025) ·
(630) 859-2222 Dr. Leena Shah, M.D.Elgin, IL · No drug or device payments recorded (2025) ·
(224) 783-2525 Dr. Mariya Rampurwala, MDElgin, IL · $33 in drug and device payments (2025) · Telehealth ·
(847) 742-0792 Dr. Michael Hernandez, M.D.Elgin, IL · $1,605 in drug and device payments (2025) · Telehealth ·
(847) 214-5750 Dr. Moshe Zamir, M.D.Elgin, IL · No drug or device payments recorded (2025) ·
(847) 741-4690 Dr. Neelam Patel, PA-CElgin, IL · No drug or device payments recorded (2025) ·
(847) 608-1344 Dr. Nino Nemsadze, MDElgin, IL · No drug or device payments recorded (2025) ·
(224) 783-2525 Dr. Patricia Merlo, D.O.Elgin, IL · $32 in drug and device payments (2025) · Telehealth ·
(847) 214-5755 Dr. Piotr Michaliszyn, MD Dr. Puja Jadav, MDElgin, IL · No drug or device payments recorded (2025) ·
(224) 783-2525 Dr. Rajesh Shah, MDElgin, IL · No drug or device payments recorded (2025) ·
(224) 629-4525 Dr. Ramalingappa Mukunda, M.D.Elgin, IL · No drug or device payments recorded (2025) ·
(847) 695-3200 Dr. Ramana Kumar, MDElgin, IL · No drug or device payments recorded (2025) ·
(847) 742-4111 Dr. Richard Baley, M.D.Elgin, IL · No drug or device payments recorded (2025) ·
(847) 742-3525 Dr. Ronald Hirsch, M.D.Elgin, IL · No drug or device payments recorded (2025) ·
(847) 214-5780 Dr. Rosalina Guerrero-guzman, MDElgin, IL · $20 in drug and device payments (2025) · Telehealth ·
(847) 637-0500 Dr. Sergei Lipov, M.D.Elgin, IL · $531 in drug and device payments (2025) · Telehealth ·
(847) 608-7542 Dr. Srilatha Mulamalla, M.D.Elgin, IL · No drug or device payments recorded (2025) ·
(224) 783-2525 Dr. Trevor Roston, MDElgin, IL · No drug or device payments recorded (2025) ·
(224) 783-2525 Dr. Viswanatham Susarla, M.D. Dr. William Nelson, MDElgin, IL · No drug or device payments recorded (2025) ·
(847) 697-5144 Dr. Yazan MazahrehElgin, IL · No drug or device payments recorded (2025) · Telehealth ·
(224) 783-2525 Dr. Kuttoppilly Krishnankutty, MDElk Grove, IL · No drug or device payments recorded (2025) ·
(847) 593-5420 Dr. Alan Weiss, M.D.Elk Grove Village, IL · No drug or device payments recorded (2025) ·
(847) 437-5843 Dr. Amir Turayhi, M.D.Elk Grove Village, IL · $747 in drug and device payments (2025) ·
(847) 640-5666 Dr. Barry Glick, DOElk Grove Village, IL · $3,110 in drug and device payments (2025) · Telehealth ·
(847) 981-6061 Dr. Catherine Johnson, D.O.Elk Grove Village, IL · No drug or device payments recorded (2025) ·
(847) 718-3302 Dr. Charlotte Glenn, MDElk Grove Village, IL · No drug or device payments recorded (2025) ·
(847) 981-6061 Dr. Dennis Abella, DOElk Grove Village, IL · No drug or device payments recorded (2025) ·
(847) 981-6061 Dr. Farha Mahvish, M.DElk Grove Village, IL · No drug or device payments recorded (2025) ·
(847) 437-5500 Dr. George Pitsilos, M.D.Elk Grove Village, IL · No drug or device payments recorded (2025) ·
(847) 228-0515 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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