Faisal A. Siddiqui, MD

Medicare activity in 2024

Official CMS public-use data for Faisal A. Siddiqui, 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. Ct scan head or brain without contrast (70450)442 services
2. X-ray of chest, 1 view (71045)433 services
3. Mri scan of brain before and after contrast (70553)400 services
4. X-ray of chest, 2 views (71046)259 services
5. Dxa bone density measurement of hip, pelvis, spine (77080)184 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%
• Arthritis59%
• Ischemic heart disease35%
• Anxiety35%
• Diabetes30%

Hospitals where Faisal A. Siddiqui works

Medicare's Facility Affiliation Data lists Faisal A. Siddiqui 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.

• Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140242
• Northwestern Medicine Delnor Community HospitalGeneva, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140211
• Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140281

Practice locations

Addresses where Faisal A. Siddiqui is enrolled with Medicare (CMS data updated October 2, 2026).

• 25 N Winfield RdWinfield, IL 60190 (630) 665‑9340
• 300 Randall RdGeneva, IL 60134 (630) 208‑3000

Group practices

Medicare enrollment lists Faisal A. Siddiqui as a member of this group (CMS data updated October 2, 2026).

• Radiology Subspecialists of Northern Illinois LLC32 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in Illinois →

Other radiologists in Winfield

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

• Jay Haggerty, MD
• Pankaj Chhabra, MD
• Andrea L. Magee, MD
• Ravi M. Sheth, MD
• Owaiz Ansari
• Ryan T. Foley, MD
• David J. Spirer, MD
• Matthew Markese, MD

All radiologists in Winfield →

Other clinicians in Radiology Subspecialists of Northern Illinois LLC

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

• Matthew Markese, MD
• Sharmi Jayachandran, MD
• Lauren M. East, MD
• Craig A. Nasralla, MD
• Michael H. Tseng, MD
• Haziq Zahir

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