Critical Care Doctors (Internal Medicine) in Illinois
Data updated monthly · Last refresh October 2026
279 Critical Care Medicine (Internal Medicine) providers practice in Illinois, including 42 (15%) 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.
279providers
42telehealth
Chicagotop city
Critical Care Medicine (Internal Medicine) by city in Illinois
Choose a city to see providers there.
Where Critical Care Doctors (Internal Medicine) in Illinois practice
From CMS Medicare enrollment records covering 206 of the 279 providers listed here (74%). Providers who do not bill Medicare are not included in these figures.
2%solo or small practice (under 10 clinicians)
17%mid-size group (10 to 99)
81%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Critical Care Doctors (Internal Medicine) | All clinicians in group | Main city |
| Advocate Health and Hospitals Corp.oration | 44 | 3,081 | Oak Lawn |
| Central Dupage Physician Group | 32 | 1,087 | Wheaton |
| Endeavor Health Medical Group | 15 | 3,330 | Evanston |
| Cep America Illinois Intensivists | 15 | 47 | Chicago |
| Critical Care Physicians of Illinois LLC | 15 | 41 | Arlington Heights |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Critical Care Doctors (Internal Medicine) affiliated |
| Advocate Christ Hospital & Medical Center | Oak Lawn | Nonprofit | 3 of 5 | 35 |
| Northwestern Medicine Central Dupage Hospital | Winfield | Nonprofit | 5 of 5 | 26 |
| Palos Community Hospital | Palos Heights | Nonprofit | 4 of 5 | 18 |
| Northwestern Medicine Mchenry | Mchenry | Nonprofit | 5 of 5 | 16 |
| Northwestern Medicine Delnor Community Hospital | Geneva | Nonprofit | 5 of 5 | 15 |
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.
Critical Care Medicine (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. Christina Burke, DOArlington Heights, IL · $20 in drug and device payments (2025) ·
(847) 618-7301 Dr. Elizabeth Hanson, MDArlington Heights, IL · No drug or device payments recorded (2025) ·
(847) 618-7301 Dr. Jeffrey Zilberstein, MDArlington Heights, IL · No drug or device payments recorded (2025) ·
(847) 618-8200 Dr. John Shanley, M.D.Arlington Heights, IL · $230 in drug and device payments (2025) ·
(847) 618-4177 Dr. Kenneth Cruz, MDArlington Heights, IL · No drug or device payments recorded (2025) · Telehealth ·
(800) 655-2656 Dr. Megan Fisher, MDArlington Heights, IL · No drug or device payments recorded (2025) ·
(847) 982-6710 Dr. Peter Psihos, DOArlington Heights, IL · No drug or device payments recorded (2025) ·
(847) 618-7301 Dr. Rajeshwari Chavda, MDArlington Heights, IL · No drug or device payments recorded (2025) ·
(866) 344-0543 Dr. Abigail Doyle, D.O.Aurora, IL · $279 in drug and device payments (2025) · Telehealth ·
(630) 499-7500 Dr. August Sigelko, MDAurora, IL · No drug or device payments recorded (2025) ·
(630) 499-7500 Dr. Hesham Hassaballa, M.D.Aurora, IL · $83 in drug and device payments (2025) · Telehealth ·
(630) 978-6200 Dr. Jack Zhao, MDAurora, IL · $1,356 in drug and device payments (2025) ·
(630) 499-7500 Dr. Tianyi Swartz, MDAurora, IL · $1,274 in drug and device payments (2025) ·
(630) 499-7500 Dr. Jeffrey Hamilton, MDBannockburn, IL · $645 in drug and device payments (2025) · Telehealth ·
(847) 236-1300 Dr. Mark Fisher, MDBannockburn, IL · No drug or device payments recorded (2025) ·
(847) 236-1300 Dr. Scott Field, MDBannockburn, IL · $19 in drug and device payments (2025) ·
(847) 236-1300 Dr. Semil Mehta, M.D.Bannockburn, IL · $7,908 in drug and device payments (2025) · Telehealth ·
(847) 236-1300 Dr. Besma JaberBarrington, IL · No drug or device payments recorded (2025) ·
(708) 283-5500 Dr. Obinna Obiekezie, M.D.Barrington, IL · No drug or device payments recorded (2025) · Telehealth ·
(708) 283-5500 Dr. Tasbirul Islam, MDBarrington, IL · No drug or device payments recorded (2025) ·
(708) 283-5500 Dr. Martin Musumbi, M.D.Belleville, IL · No drug or device payments recorded (2025) ·
(618) 234-2120 Dr. Yashaswi Belvadi, MDBelleville, IL · $35 in drug and device payments (2025) ·
(618) 234-2120 Dr. Mairaj Jaleel, MDBerwyn, IL · No drug or device payments recorded (2025) ·
(708) 783-9100 Dr. Hatem Desoky, M.D.Bloomington, IL · No drug or device payments recorded (2025) ·
(309) 661-2368 Dr. Venkata Dodda, MDBloomington, IL · No drug or device payments recorded (2025) · Telehealth ·
(309) 661-2368 Dr. Edward Garrity, MDBurr Ridge, IL · No drug or device payments recorded (2025) ·
(773) 834-4064 Dr. Jared Greenberg, M.D.Burr Ridge, IL · $846 in drug and device payments (2025) · Telehealth ·
(773) 702-1150 Dr. Michael Howell, MDBurr Ridge, IL · No drug or device payments recorded (2025) ·
(773) 702-1150 Dr. Faisal Abdulameer, M.B.CH.BChampaign, IL · No drug or device payments recorded (2025) ·
(217) 365-6207 Dr. Charles Chen, MDChicago, IL · $442 in drug and device payments (2025) ·
(773) 834-9500 Dr. Christopher OlopadeChicago, IL · No drug or device payments recorded (2025) ·
(866) 600-2273 Dr. Clarissa Smith, MDChicago, IL · $158 in drug and device payments (2025) ·
(773) 702-9660 Dr. Clifton Clarke, MDChicago, IL · $3,188 in drug and device payments (2025) ·
(312) 572-1202 Dr. Cristina Bardita, MD, PHDChicago, IL · No drug or device payments recorded (2025) ·
(312) 942-5000 Dr. Dean SchraufnagelChicago, IL · $6,083 in drug and device payments (2025) ·
(866) 600-2273 Dr. Eleanor Banzon, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 572-2000 Dr. Ergun Onal, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 996-7699 Dr. Eric Gluck, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(773) 293-3200 Dr. Faisal Amdani, D.O.Chicago, IL · No drug or device payments recorded (2025) ·
(773) 878-8200 Dr. Foster Adams, D.O.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 942-5000 Dr. Francis Lawrence CocjinChicago, IL · No drug or device payments recorded (2025) ·
(630) 660-0539 Dr. Helen Hoover, MDChicago, IL · $138 in drug and device payments (2025) ·
(312) 942-7100 Dr. Hussain Aboud, M.D.Chicago, IL · $14 in drug and device payments (2025) · Telehealth ·
(773) 702-0151 Dr. Irtaza Khan, M.B,B.SChicago, IL · No drug or device payments recorded (2025) ·
(336) 830-4261 Dr. Israel RubinsteinChicago, IL · $9,433 in drug and device payments (2025) ·
(866) 600-2273 Dr. Jacqueline Dinh, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 484-1000 Common questions
How many Critical Care Medicine (Internal Medicine) providers are in Illinois?There are 279 Critical Care Medicine (Internal Medicine) providers with active NPI records practicing in Illinois, according to federal NPPES data refreshed monthly.
Do Critical Care Medicine (Internal Medicine) providers in Illinois offer telehealth?Yes. 42 of the 279 Critical Care Medicine (Internal Medicine) providers in Illinois (about 15%) report offering telehealth services in CMS data.
Which cities in Illinois have the most Critical Care Medicine (Internal Medicine) providers?Chicago (48), Oak Lawn (34), Springfield (22) have the highest concentration of Critical Care Medicine (Internal Medicine) providers in Illinois.
How many Critical Care Medicine (Internal Medicine) providers in Illinois received drug or device company payments?126 of 279 Critical Care Medicine (Internal Medicine) providers in Illinois (45%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
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 Critical Care Doctors (Internal Medicine) in Illinois work in independent practices or large health systems?Among 206 Critical Care Doctors (Internal Medicine) in Illinois enrolled in Medicare, 2% bill through a solo or small practice with fewer than 10 clinicians, 17% through a mid-size group of 10 to 99, and 81% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Critical Care Doctors (Internal Medicine) in Illinois work at?According to CMS facility affiliation records, the Illinois hospitals where the most Critical Care Doctors (Internal Medicine) hold privileges are Advocate Christ Hospital & Medical Center in Oak Lawn; Northwestern Medicine Central Dupage Hospital in Winfield; Palos Community Hospital in Palos Heights.
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