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Endocrinologists in Illinois

Data updated monthly · Last refresh October 2026

437 Endocrinology, Diabetes & Metabolism providers practice in Illinois, including 208 (48%) 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.

437providers
208telehealth
Chicagotop city

Endocrinology, Diabetes & Metabolism by city in Illinois

Choose a city to see providers there.

Endocrinology, Diabetes & Metabolism in Chicago154 providers
Endocrinology, Diabetes & Metabolism in Springfield23 providers
Endocrinology, Diabetes & Metabolism in Skokie21 providers
Endocrinology, Diabetes & Metabolism in Maywood11 providers
Endocrinology, Diabetes & Metabolism in Arlington Heights10 providers
Endocrinology, Diabetes & Metabolism in Orland Park10 providers
Endocrinology, Diabetes & Metabolism in Park Ridge9 providers
Endocrinology, Diabetes & Metabolism in Aurora8 providers
Endocrinology, Diabetes & Metabolism in Champaign8 providers
Endocrinology, Diabetes & Metabolism in Merrionette Park8 providers
Endocrinology, Diabetes & Metabolism in Rockford7 providers
Endocrinology, Diabetes & Metabolism in Naperville7 providers
Endocrinology, Diabetes & Metabolism in Hinsdale7 providers
Endocrinology, Diabetes & Metabolism in Geneva6 providers
Endocrinology, Diabetes & Metabolism in Peoria6 providers
Endocrinology, Diabetes & Metabolism in Bourbonnais5 providers
Endocrinology, Diabetes & Metabolism in Bannockburn5 providers
Endocrinology, Diabetes & Metabolism in Elmhurst5 providers
Endocrinology, Diabetes & Metabolism in Quincy4 providers
Endocrinology, Diabetes & Metabolism in Burr Ridge4 providers
Endocrinology, Diabetes & Metabolism in Oak Lawn4 providers
Endocrinology, Diabetes & Metabolism in Buffalo Grove4 providers
Endocrinology, Diabetes & Metabolism in Moline4 providers
Endocrinology, Diabetes & Metabolism in Crystal Lake3 providers

Where Endocrinologists in Illinois practice

From CMS Medicare enrollment records covering 281 of the 437 providers listed here (64%). Providers who do not bill Medicare are not included in these figures.

14%solo or small practice (under 10 clinicians)
2%mid-size group (10 to 99)
84%large group or health system (100+)

Largest practice groups

Group (as registered with Medicare)EndocrinologistsAll clinicians in groupMain city
Endeavor Health Medical Group333,330Evanston
Northwestern Medical Faculty Foundation254,386Chicago
Central Dupage Physician Group241,087Wheaton
Advocate Health and Hospitals Corp.oration203,081Chicago
University of Chicago201,674Chicago

Hospitals where they hold privileges

HospitalCityOwnershipCMS star ratingEndocrinologists affiliated
Northwestern Medicine Central Dupage HospitalWinfieldNonprofit5 of 576
Northwestern Memorial HospitalChicagoNonprofit5 of 541
Northwestern Lake Forest HospitalLake ForestNonprofit5 of 536
Northshore University Healthsystem - Evanston HospitalEvanstonNonprofit5 of 535
Palos Community HospitalPalos HeightsNonprofit4 of 529

Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.

Endocrinology, Diabetes & Metabolism 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. Wael Girgis, M.D.
Alton, IL · No drug or device payments recorded (2025) · (618) 433-6170
Dr. Wonil Tae, MD
Alton, IL · No drug or device payments recorded (2025) · (618) 642-2222
Dr. Aspin Makadia, MD
Arlington Heights, IL · No drug or device payments recorded (2025) · (847) 618-0326
Dr. Daniel So, M.D.
Arlington Heights, IL · $35,975 in drug and device payments (2025) · Telehealth · (847) 228-3200
Dr. Dipal Shah, DO
Arlington Heights, IL · $48 in drug and device payments (2025) · Telehealth · (847) 725-8401
Dr. Elena Barengolts
Arlington Heights, IL · $2,958 in drug and device payments (2025) · Telehealth · (847) 870-1702
Dr. George Motto, M.D.
Arlington Heights, IL · No drug or device payments recorded (2025) · (847) 394-0846
Dr. Luis Soruco, M.D.
Arlington Heights, IL · No drug or device payments recorded (2025) · (847) 228-3200
Dr. Maria Justina Villano, MD
Arlington Heights, IL · $129 in drug and device payments (2025) · Telehealth · (847) 725-8453
Dr. Mario Chan, M.D.
Arlington Heights, IL · $6,972 in drug and device payments (2025) · Telehealth · (847) 228-3200
Dr. Paraskevi Sapountzi, MD
Arlington Heights, IL · $3,844 in drug and device payments (2025) · Telehealth · (847) 228-3200
Dr. Zubair Ilyas, MD
Arlington Heights, IL · $3,487 in drug and device payments (2025) · Telehealth · (847) 228-3200
Dr. Baani Singh, MD
Aurora, IL · No drug or device payments recorded (2025) · (630) 978-4889
Dr. Betsy Bennet, MD
Aurora, IL · No drug or device payments recorded (2025) · (630) 859-6700
Dr. Christine Cox, D.O
Aurora, IL · No drug or device payments recorded (2025) · Telehealth · (630) 859-6700
Dr. Mehul Shah, DO
Aurora, IL · $103 in drug and device payments (2025) · (630) 978-4889
Dr. Mini Sara Cherian, M.D
Aurora, IL · $20 in drug and device payments (2025) · (630) 978-4889
Dr. Padmalatha Berikai, MD
Aurora, IL · $108 in drug and device payments (2025) · Telehealth · (630) 978-4889
Dr. Suneetha Vysetti, MD
Aurora, IL · No drug or device payments recorded (2025) · Telehealth · (630) 978-4889
Dr. Tharani Rajeswaran, M.D.
Aurora, IL · No drug or device payments recorded (2025) · Telehealth · (630) 851-3105
Dr. Annie Skariah, MD
Bannockburn, IL · No drug or device payments recorded (2025) · Telehealth · (847) 663-8540
Dr. Eve Bloomgarden, MD
Bannockburn, IL · $15,813 in drug and device payments (2025) · (847) 663-8540
Dr. Karolina Machnica, DO
Bannockburn, IL · No drug or device payments recorded (2025) · Telehealth · (847) 663-8540
Dr. Megan Crawford, D.O.
Bannockburn, IL · $104 in drug and device payments (2025) · Telehealth · (847) 663-8540
Dr. Sara Chowdhury, M.D.
Bannockburn, IL · No drug or device payments recorded (2025) · Telehealth · (847) 663-8540
Dr. Qamar Al Tinawi, MBBS
Belleville, IL · No drug or device payments recorded (2025) · (531) 239-6564
Dr. Madalina Ionescu, MD
Berwyn, IL · $39 in drug and device payments (2025) · (708) 783-0192
Dr. Abdullah Melhim, MD
Bloomingdale, IL · $193 in drug and device payments (2025) · (630) 208-6775
Dr. Paul Menet, MD
Bloomingdale, IL · No drug or device payments recorded (2025) · (630) 893-2190
Dr. Raeda Alshantti, MD
Bloomingdale, IL · No drug or device payments recorded (2025) · (630) 208-6775
Dr. Vijay Kumar, M.D.
Bloomington, IL · No drug or device payments recorded (2025) · Telehealth · (309) 664-3800
Dr. Ashraf Uddin
Bourbonnais, IL · $255 in drug and device payments (2025) · (815) 936-8909
Dr. Jabiz Behzadpour, DO
Bourbonnais, IL · $104 in drug and device payments (2025) · (815) 936-8909
Dr. Maureen Morgan O'connor, MD
Bourbonnais, IL · $215 in drug and device payments (2025) · Telehealth · (815) 936-8909
Dr. Rachel Shell, MD
Bourbonnais, IL · $107 in drug and device payments (2025) · Telehealth · (815) 936-8909
Dr. Sara Elizabeth Yap, MD
Bourbonnais, IL · $131 in drug and device payments (2025) · (815) 936-8909
Dr. Ammara Aziz, MD
Buffalo Grove, IL · $590 in drug and device payments (2025) · Telehealth · (847) 618-0326
Dr. George Thott, M.D
Buffalo Grove, IL · No drug or device payments recorded (2025) · (847) 618-0326
Dr. Gregory Clark, M.D.
Buffalo Grove, IL · $234 in drug and device payments (2025) · (847) 541-4878
Dr. Inessa Gelfand, M.D.
Buffalo Grove, IL · $2,725 in drug and device payments (2025) · Telehealth · (630) 566-9565
Dr. Ann Lawrence, MD
Burr Ridge, IL · No drug or device payments recorded (2025) · (630) 325-3128
Dr. Murray Favus, MD
Burr Ridge, IL · No drug or device payments recorded (2025) · (773) 834-4064
Dr. Plamen Penev, MD
Burr Ridge, IL · No drug or device payments recorded (2025) · (773) 834-4064
Dr. Samuel Refetoff, MD
Burr Ridge, IL · No drug or device payments recorded (2025) · (773) 834-4064
Dr. Farah Ziyadeh
Carbondale, IL · $188 in drug and device payments (2025) · (618) 549-5361
Dr. Is-haq Malik, MD
Carbondale, IL · $1,897 in drug and device payments (2025) · (618) 549-5361
Dr. Aileen Westrick
Carol Stream, IL · $324 in drug and device payments (2025) · Telehealth · (630) 688-3210
Dr. William Bayer, MD
Carol Stream, IL · $1,269 in drug and device payments (2025) · Telehealth · (630) 668-3210
Dr. Kathryn Wilson, MD
Champaign, IL · No drug or device payments recorded (2025) · (217) 383-3490
Dr. Kingsley Onyemere, MD
Champaign, IL · No drug or device payments recorded (2025) · Telehealth · (217) 383-3490

Conditions Endocrinology, Diabetes & Metabolism providers in Illinois commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Endocrinology, Diabetes & Metabolism providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Endocrinology, Diabetes & Metabolism providers are in Illinois?

There are 437 Endocrinology, Diabetes & Metabolism providers with active NPI records practicing in Illinois, according to federal NPPES data refreshed monthly.

Do Endocrinology, Diabetes & Metabolism providers in Illinois offer telehealth?

Yes. 208 of the 437 Endocrinology, Diabetes & Metabolism providers in Illinois (about 48%) report offering telehealth services in CMS data.

Which cities in Illinois have the most Endocrinology, Diabetes & Metabolism providers?

Chicago (154), Springfield (23), Skokie (21) have the highest concentration of Endocrinology, Diabetes & Metabolism providers in Illinois.

How many Endocrinology, Diabetes & Metabolism providers in Illinois received drug or device company payments?

236 of 437 Endocrinology, Diabetes & Metabolism providers in Illinois (54%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Endocrinology, Diabetes & Metabolism providers in Illinois treat?

Endocrinology, Diabetes & Metabolism providers commonly treat type 2 diabetes, thyroid disorders, osteoporosis, hormone imbalance, type 1 diabetes 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 Endocrinologists in Illinois work in independent practices or large health systems?

Among 281 Endocrinologists in Illinois enrolled in Medicare, 14% bill through a solo or small practice with fewer than 10 clinicians, 2% through a mid-size group of 10 to 99, and 84% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Endocrinologists in Illinois work at?

According to CMS facility affiliation records, the Illinois hospitals where the most Endocrinologists hold privileges are Northwestern Medicine Central Dupage Hospital in Winfield; Northwestern Memorial Hospital in Chicago; Northwestern Lake Forest Hospital in Lake Forest.

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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 Endocrinology, Diabetes & Metabolism in Illinois? Get featured.