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. Mariam Ardehali, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 926-2000 Dr. Mariam El AzzihChicago, IL · $291 in drug and device payments (2025) ·
(773) 257-5701 Dr. Mariam Goreish, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 942-5000 Dr. Mariam Khan, DOChicago, IL · No drug or device payments recorded (2025) ·
(773) 878-8200 Dr. Marianne Green, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 695-9797 Dr. Marianne Pavach, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 653-4178 Dr. Marianne Solano, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 257-5701 Dr. Maria Peralta Rosales, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 766-4949 Dr. Maria Poonawalla, MDChicago, IL · $206 in drug and device payments (2025) ·
(773) 702-6840 Dr. Maria Reyes, M.D.Chicago, IL · $18 in drug and device payments (2025) · Telehealth ·
(773) 975-8900 Dr. Maria Riofrio, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 766-4949 Dr. Maria Vargas Diez Perez, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 766-4949 Dr. Marie Jennifer Seares, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 864-6000 Dr. Marielle Kamath, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 702-6840 Dr. Marielle Nicole Chin, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 766-4949 Dr. Marie Schlentz, D.O.Chicago, IL · No drug or device payments recorded (2025) ·
(773) 292-4800 Dr. Marilyn Aden, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 549-7757 Dr. Marilyn Pearson, MDChicago, IL · $383 in drug and device payments (2025) · Telehealth ·
(312) 926-3627 Dr. Marina Amusin, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(773) 274-5026 Dr. Marina Arvanitis, M.D.Chicago, IL · No drug or device payments recorded (2025) · Telehealth ·
(312) 695-4000 Dr. Marina Burkova, D.O.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 942-5000 Dr. Marina Mathew, M.D,Chicago, IL · No drug or device payments recorded (2025) ·
(312) 953-0356 Dr. Marina Shvartsman, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(773) 973-6100 Dr. Mario Lozano-franco, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 257-5701 Dr. Mario Tavakoli, DOChicago, IL · No drug or device payments recorded (2025) ·
(312) 996-2933 Dr. Marisa Lenga, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 702-1611 Dr. Mark Anton Arganda, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 864-6000 Dr. Mark Chien, M.D.Chicago, IL · $1,030 in drug and device payments (2025) ·
(312) 503-6000 Dr. Mark Gunther, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 829-4224 Dr. Mark KushnerChicago, IL · No drug or device payments recorded (2025) ·
(866) 600-2273 Dr. Mark Multach, MDChicago, IL · $119 in drug and device payments (2025) ·
(315) 618-9922 Dr. Mark SieglerChicago, IL · No drug or device payments recorded (2025) ·
(888) 824-0200 Dr. Mark Solinski, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 926-2000 Dr. Marlise Pierre-wright, MDChicago, IL · No drug or device payments recorded (2025) · Telehealth ·
(312) 503-7975 Dr. Marshall ChinChicago, IL · No drug or device payments recorded (2025) ·
(888) 824-0200 Dr. Marta Dudek, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(773) 631-2015 Dr. Martin Kwiatkowski, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 564-5235 Dr. Martin Lindenberger, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(773) 776-3422 Dr. Martin Siglin, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(773) 989-1111 Dr. Martin Watanabe Tejada, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 766-4949 Dr. Mary AcostaChicago, IL · $570 in drug and device payments (2025) ·
(773) 702-4145 Dr. Mary Allison Arwady, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 814-4846 Dr. Maryam AlausaChicago, IL · No drug or device payments recorded (2025) ·
(773) 702-1447 Dr. Maryam Bolouri, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 942-5495 Dr. Maryam HaghshomarChicago, IL · $102 in drug and device payments (2025) ·
(773) 564-5225 Dr. Maryam Majeed, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 665-3000 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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