Infectious Disease Specialists in Illinois
Data updated monthly · Last refresh October 2026
463 Infectious Disease providers practice in Illinois, including 173 (37%) 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.
463providers
173telehealth
Chicagotop city
Infectious Disease by city in Illinois
Choose a city to see providers there.
Infectious Disease 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. Nyal Siddiqi, D.O.Oak Park, IL · No drug or device payments recorded (2025) · Telehealth ·
(888) 220-6432 Dr. Supriya Jasuja, M.D.Oak Park, IL · No drug or device payments recorded (2025) ·
(847) 778-4833 Dr. Shahnaz Azad, M.D.Olympia Fields, IL · $25 in drug and device payments (2025) ·
(708) 704-6787 Dr. Tahseen Siddiqui, M. D.Orland Park, IL · $94 in drug and device payments (2025) ·
(708) 351-0292 Dr. Ankur Dave, D.OPalos Heights, IL · $34 in drug and device payments (2025) ·
(708) 361-5778 Dr. Bhagavatula Ramakrishna, MDPalos Heights, IL · No drug or device payments recorded (2025) ·
(708) 923-7874 Dr. Dana MuellerPalos Heights, IL · $106 in drug and device payments (2025) ·
(708) 361-5778 Dr. Godofredo Carandang, MDPalos Heights, IL · No drug or device payments recorded (2025) ·
(708) 361-5778 Dr. Gregory Olson, M.D.Palos Heights, IL · No drug or device payments recorded (2025) ·
(708) 361-5778 Dr. John Andreoni, MDPalos Heights, IL · No drug or device payments recorded (2025) ·
(708) 361-5778 Dr. Kathleen Ruggero, DOPalos Heights, IL · No drug or device payments recorded (2025) ·
(708) 361-5778 Dr. Kiran Dhillon, M.D.Palos Heights, IL · No drug or device payments recorded (2025) ·
(708) 361-5778 Dr. Muhammad Tabriz, M.D.Palos Heights, IL · No drug or device payments recorded (2025) ·
(708) 361-5778 Dr. Caytlin Deering, MDPark Ridge, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 318-9340 Dr. David Slagle, MDPeoria, IL · No drug or device payments recorded (2025) ·
(309) 655-3292 Dr. Isha Bhatt, MS, M.D.Peoria, IL · No drug or device payments recorded (2025) ·
(309) 671-8270 Dr. John Farrell, MDPeoria, IL · No drug or device payments recorded (2025) ·
(309) 655-7734 Dr. Marlynn Patel, MDPeoria, IL · No drug or device payments recorded (2025) ·
(309) 655-3292 Dr. Matthew Mcgath, MDPeoria, IL · No drug or device payments recorded (2025) · Telehealth ·
(309) 655-2730 Dr. Nikhut SiddiquePeoria, IL · No drug or device payments recorded (2025) · Telehealth ·
(309) 624-2680 Dr. Rone Chun Lin, M.D.Peoria, IL · No drug or device payments recorded (2025) · Telehealth ·
(309) 655-6384 Dr. Aline Malebranche, M.D.Peoria Heights, IL · No drug or device payments recorded (2025) ·
(888) 220-6432 Dr. Stephen Doughty, MDPeoria Heights, IL · No drug or device payments recorded (2025) ·
(888) 220-6432 Dr. Adnan Mushtaq, M.D.Quincy, IL · $427 in drug and device payments (2025) · Telehealth ·
(217) 223-8400 Dr. Hala Saad, M.DQuincy, IL · $723 in drug and device payments (2025) · Telehealth ·
(217) 222-6550 Dr. Geoffrey Tsaras, MDRockford, IL · $125 in drug and device payments (2025) · Telehealth ·
(779) 696-1890 Dr. Kavitha Subramanian, M.D.Rockford, IL · No drug or device payments recorded (2025) · Telehealth ·
(815) 398-3277 Dr. Moamen Al Zoubi, MDRockford, IL · No drug or device payments recorded (2025) · Telehealth ·
(815) 971-5000 Dr. Scott Homann, M.D.Rockford, IL · $250 in drug and device payments (2025) ·
(779) 696-1890 Dr. Suma Rao, MDRockford, IL · No drug or device payments recorded (2025) ·
(815) 490-1600 Dr. Syed Quadri, MDRockford, IL · $39 in drug and device payments (2025) · Telehealth ·
(815) 971-7000 Dr. Rosario Bartolomeo, DO Dr. Chethra Muthiah, M.D.Skokie, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 657-5959 Dr. Afshan Iqbal, MDSpringfield, IL · $750 in drug and device payments (2025) · Telehealth ·
(217) 528-7541 Dr. Ahmed Khan, MBBS, MDSpringfield, IL · No drug or device payments recorded (2025) ·
(217) 545-8000 Dr. Daniel O'keefe, M.D.Springfield, IL · No drug or device payments recorded (2025) · Telehealth ·
(217) 836-2217 Dr. Douglas Leigh, M.D.Springfield, IL · No drug or device payments recorded (2025) ·
(217) 527-4720 Dr. Janak Koirala, M.D.Springfield, IL · $111 in drug and device payments (2025) ·
(217) 545-9537 Dr. Lyndsey Heise, M.D.Springfield, IL · $834 in drug and device payments (2025) · Telehealth ·
(217) 528-7541 Dr. Maria Merrick, DOSpringfield, IL · $105 in drug and device payments (2025) ·
(217) 528-7541 Dr. Praveen Mullangi, M.D.Springfield, IL · $1,117 in drug and device payments (2025) · Telehealth ·
(217) 528-7541 Dr. Saliha Saleem, MDSpringfield, IL · No drug or device payments recorded (2025) · Telehealth ·
(217) 545-9148 Dr. Salvador Fernandez, MDSpringfield, IL · No drug or device payments recorded (2025) · Telehealth ·
(217) 545-8000 Dr. Samar Waqar, MDSpringfield, IL · No drug or device payments recorded (2025) ·
(217) 545-8000 Dr. Sana Waqar, M.D.Springfield, IL · No drug or device payments recorded (2025) · Telehealth ·
(217) 545-8000 Dr. Sandesh Gyawali, MBBSSpringfield, IL · No drug or device payments recorded (2025) ·
(217) 545-8000 Dr. Steven O'marro, M.D.Springfield, IL · $582 in drug and device payments (2025) · Telehealth ·
(217) 527-4720 Dr. Vidhya Prakash, M.D.Springfield, IL · No drug or device payments recorded (2025) · Telehealth ·
(217) 545-8000 Dr. Vidya Sundareshan, MDSpringfield, IL · No drug or device payments recorded (2025) · Telehealth ·
(217) 545-9537 Dr. Zainab AlnafoosiSpringfield, IL · No drug or device payments recorded (2025) · Telehealth ·
(217) 545-8000 Conditions Infectious Disease providers in Illinois commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Infectious Disease providers. Individual practices vary, so confirm with the provider before booking.
- Long COVID
- HIV care
- Lyme disease
- Recurrent infections
- Travel medicine
Common questions
How many Infectious Disease providers are in Illinois?There are 463 Infectious Disease providers with active NPI records practicing in Illinois, according to federal NPPES data refreshed monthly.
Do Infectious Disease providers in Illinois offer telehealth?Yes. 173 of the 463 Infectious Disease providers in Illinois (about 37%) report offering telehealth services in CMS data.
Which cities in Illinois have the most Infectious Disease providers?Chicago (216), Burr Ridge (28), Springfield (17) have the highest concentration of Infectious Disease providers in Illinois.
How many Infectious Disease providers in Illinois received drug or device company payments?130 of 463 Infectious Disease providers in Illinois (28%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Infectious Disease providers in Illinois treat?Infectious Disease providers commonly treat long COVID, HIV care, Lyme disease, recurrent infections, travel medicine 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 Infectious Disease Specialists in Illinois work in independent practices or large health systems?Among 289 Infectious Disease Specialists in Illinois enrolled in Medicare, 13% bill through a solo or small practice with fewer than 10 clinicians, 8% through a mid-size group of 10 to 99, and 79% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Infectious Disease Specialists in Illinois work at?According to CMS facility affiliation records, the Illinois hospitals where the most Infectious Disease Specialists hold privileges are Northwestern Memorial Hospital in Chicago; Northwestern Medicine Central Dupage Hospital in Winfield; John H Stroger Jr Hospital in Chicago.
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