Rehan M. Riaz, MD

Medicare activity in 2024

Official CMS public-use data for Rehan M. Riaz, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)262 services
2. Ultrasonic guidance for blood vessel access (76937)69 services
3. Fluoroscopic guidance for insertion or removal of central vein access device (77001)57 services
4. Ultrasound study of arm and leg arteries (93922)44 services
5. Review by radiologist of ct guidance for needle placement (77012)33 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Arthritis58%
• Chronic kidney disease56%
• Ischemic heart disease55%
• Diabetes46%

Hospitals where Rehan M. Riaz works

Medicare's Facility Affiliation Data lists Rehan M. Riaz at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Rush Oak Park HospitalOak Park, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140063
• Rush University Medical CenterChicago, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140119

Practice locations

Addresses where Rehan M. Riaz is enrolled with Medicare (CMS data updated October 2, 2026).

• 1725 W Harrison St, Suite 450Chicago, IL 60612 (312) 563‑4238

Group practices

Medicare enrollment lists Rehan M. Riaz as a member of this group (CMS data updated October 2, 2026).

• Rush University Medical Group1,551 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in Illinois →

Other radiologists in Chicago

Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.

• Igor Trilisky, MD
• Daniel R. L'Heureux, MD
• Gleb Gorelick, MD
• Sumeet G. Dua, MD
• Sonya Bhole, MD
• Sarah J. Moum, MD
• Erin I. Neuschler, MD
• Anupam Basu, MD

All radiologists in Chicago →

Other clinicians in Rush University Medical Group

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Rebecca Wilson
• August D. Sigelko, MD
• Alefiya I. Al-Qamari, MD
• Jessica M. Diaz, MD
• Manish Gorasiya, MD
• Ryan D. Jacobson, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians