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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 in Chicago2,841 providers
Internal Medicine in Maywood252 providers
Internal Medicine in Springfield196 providers
Internal Medicine in Evanston180 providers
Internal Medicine in Peoria171 providers
Internal Medicine in Oak Lawn169 providers
Internal Medicine in Park Ridge160 providers
Internal Medicine in Urbana142 providers
Internal Medicine in Rockford81 providers
Internal Medicine in Naperville73 providers
Internal Medicine in Mchenry72 providers
Internal Medicine in Berwyn68 providers
Internal Medicine in Skokie64 providers
Internal Medicine in Elgin61 providers
Internal Medicine in Oak Park59 providers
Internal Medicine in Glenview58 providers
Internal Medicine in Arlington Heights53 providers
Internal Medicine in Elmhurst48 providers
Internal Medicine in Decatur44 providers
Internal Medicine in Aurora44 providers
Internal Medicine in Long Grove42 providers
Internal Medicine in North Chicago41 providers
Internal Medicine in Joliet40 providers
Internal Medicine in Lombard38 providers

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. Luis Couret, M.D.
Franklin Park, IL · $396 in drug and device payments (2025) · Telehealth · (847) 451-4064
Dr. Narendra Dabhade, M.D.
Franklin Park, IL · No drug or device payments recorded (2025) · (847) 455-3302
Dr. Stanley Simon, MD
Franklin Park, IL · $95 in drug and device payments (2025) · (615) 778-4066
Dr. Subarna Pradhan, M.D.
Franklin Park, IL · No drug or device payments recorded (2025) · (847) 455-0110
Dr. Alan Esker, MD
Freeport, IL · No drug or device payments recorded (2025) · (815) 599-7740
Dr. Diana Mcnulty, MD
Freeport, IL · No drug or device payments recorded (2025) · Telehealth · (815) 599-7880
Dr. Diann Bennett, MD
Freeport, IL · No drug or device payments recorded (2025) · (815) 599-6000
Dr. Eugene Gaertner, MD
Freeport, IL · No drug or device payments recorded (2025) · (815) 599-7410
Dr. Mansoor Ali, MD
Freeport, IL · $21 in drug and device payments (2025) · (815) 599-6000
Dr. Marie Heimerdinger, M.D.
Freeport, IL · No drug or device payments recorded (2025) · (815) 235-4881
Dr. Renu Dosi, M.D.
Freeport, IL · No drug or device payments recorded (2025) · (815) 599-7740
Dr. William Sharelis, MD
Freeport, IL · No drug or device payments recorded (2025) · (815) 599-6000
Dr. Debbie Cihak, M.D.
Galena, IL · $196 in drug and device payments (2025) · (815) 776-7381
Dr. Maria Hernandez, MD
Galena, IL · $150 in drug and device payments (2025) · (815) 777-0900
Dr. Richard Farrell, M.D.
Galena, IL · No drug or device payments recorded (2025) · (815) 777-1340
Dr. Balakrishna Ravella, MD
Galesburg, IL · No drug or device payments recorded (2025) · (309) 344-3161
Dr. Brij Jamnadas, M.D.
Galesburg, IL · No drug or device payments recorded (2025) · (309) 344-1000
Dr. Christopher Kinne, MD
Galesburg, IL · $144 in drug and device payments (2025) · Telehealth · (309) 343-5114
Dr. James King, M.D.
Galesburg, IL · No drug or device payments recorded (2025) · (309) 344-1000
Dr. Jeffrey Hershkowitz, D.O.
Galesburg, IL · $2,004 in drug and device payments (2025) · (309) 344-1000
Dr. Mark Meeker, D. O.
Galesburg, IL · $98 in drug and device payments (2025) · (309) 344-1000
Dr. Ramon Garcia, MD
Galesburg, IL · No drug or device payments recorded (2025) · (309) 343-7195
Dr. Yan Liu, MD
Galesburg, IL · $67 in drug and device payments (2025) · (309) 344-1000
Dr. Drew Van Kerrebroeck, MD
Geneseo, IL · No drug or device payments recorded (2025) · (309) 946-5124
Dr. Even Kvelland, MD
Geneseo, IL · No drug or device payments recorded (2025) · (309) 946-5124
Dr. Lekha Prasad, MD
Geneseo, IL · No drug or device payments recorded (2025) · (309) 944-5342
Dr. Loren Soria, MD
Geneseo, IL · $261 in drug and device payments (2025) · (309) 944-5342
Dr. Algimantas Kerpe, M.D.
Geneva, IL · $52 in drug and device payments (2025) · Telehealth · (630) 262-3327
Dr. Jaclyn Keller
Geneva, IL · No drug or device payments recorded (2025) · (630) 933-4700
Dr. Mark Lewis, MD
Geneva, IL · No drug or device payments recorded (2025) · (630) 232-7600
Dr. Nirali Patel, DO
Geneva, IL · $374 in drug and device payments (2025) · Telehealth · (630) 262-0888
Dr. Puja Patel
Geneva, IL · $905 in drug and device payments (2025) · (202) 444-8168
Dr. Kimberly Hudspeth, M.D.
Germantown, IL · No drug or device payments recorded (2025) · (618) 523-4216
Dr. Neil Nelson, MD
Gibson City, IL · No drug or device payments recorded (2025) · (217) 784-8580
Dr. Omar Geada, M.D.
Gibson City, IL · $345 in drug and device payments (2025) · (217) 784-4086
Dr. Naran Dodia, MD
Gilman, IL · No drug or device payments recorded (2025) · (815) 265-4628
Dr. Abiodun Sangoseni, MD
Glen Carbon, IL · No drug or device payments recorded (2025) · (800) 968-6866
Dr. Jasdip Brar, M.D.
Glendale Heights, IL · $32 in drug and device payments (2025) · (630) 545-4935
Dr. Nirali Parikh, M.D.
Glendale Heights, IL · $1,590 in drug and device payments (2025) · Telehealth · (630) 909-9050
Dr. Sumitha Mahkri
Glendale Heights, IL · No drug or device payments recorded (2025) · (630) 588-9784
Dr. Adelbert Duvel, MD
Glen Ellyn, IL · No drug or device payments recorded (2025) · (630) 469-9200
Dr. Ashruta Patel, MD
Glen Ellyn, IL · $122 in drug and device payments (2025) · Telehealth · (630) 790-1792
Dr. Caroline Wolfe, MD
Glen Ellyn, IL · No drug or device payments recorded (2025) · (630) 469-9200
Dr. Carol Olmstead Miecznikowski, MD
Glen Ellyn, IL · No drug or device payments recorded (2025) · (630) 469-9200
Dr. Christina Huynh, M.D.
Glen Ellyn, IL · $153 in drug and device payments (2025) · Telehealth · (630) 790-1792
Dr. Jeffrey Tomaszewski, MD
Glen Ellyn, IL · $32 in drug and device payments (2025) · Telehealth · (630) 469-9200
Dr. John Baird, MD
Glen Ellyn, IL · No drug or device payments recorded (2025) · Telehealth · (630) 384-6330
Dr. Jonathan Delew, M.D.
Glen Ellyn, IL · $63 in drug and device payments (2025) · Telehealth · (630) 469-9200
Dr. Kelly Vuong, MD
Glen Ellyn, IL · No drug or device payments recorded (2025) · Telehealth · (630) 545-3760
Dr. Leena Patel, M.D.
Glen Ellyn, IL · $146 in drug and device payments (2025) · Telehealth · (630) 790-1792

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.

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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Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Internal Medicine in Illinois? Get featured.