Ayman S. Alzubi, MD

Medicare activity in 2024

Official CMS public-use data for Ayman S. Alzubi, 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. Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)105 services
2. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)62 services
3. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)56 services
4. Telephone medical discussion with physician, 11-20 minutes (99442)35 services
5. Diagnostic exam of large bowel using a flexible endoscope (45378)32 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 pressure74%
• High cholesterol73%
• Arthritis41%
• Diabetes36%
• Ischemic heart disease27%
• Anxiety26%

Hospitals where Ayman S. Alzubi works

Medicare's Facility Affiliation Data lists Ayman S. Alzubi 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.

• Presence Mercy Medical CenterAurora, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140174
• Saint Joseph Medical CenterJoliet, IL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 140007

Practice locations

Addresses where Ayman S. Alzubi is enrolled with Medicare (CMS data updated October 2, 2026).

• 301 N Madison Ave, Suite 210Joliet, IL 60435 (815) 725‑0007
• 500 S Weber RdRomeoville, IL 60446 (815) 773‑7732

Group practices

Medicare enrollment lists Ayman S. Alzubi as a member of this group (CMS data updated October 2, 2026).

• Prime Healthcare Illinois Medical Group LLC322 clinicians in the group

Specialties

• Gastroenterologyprimary
• Internal Medicinealso

Find other Gastroenterology doctors in Illinois →

Other gastroenterologists in Illinois

Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.

• Douglas A. Lee, MD
• Ammar Hassan, DO
• Zohair Ahmed, MD
• Thomas P. Couri, MD
• Anna Lipowska, MD
• Srinadh Komanduri, MD
• Nathan Pyle, DO
• Shiraz A. Khaiser, MD

All gastroenterologists in Illinois →

Other clinicians in Prime Healthcare Illinois Medical Group LLC

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

• Tetiana Zubrycky, MD
• Hong X. Vo, MD
• Amer Alsamman, MD
• Teresa A. Hubka, DO
• Dorothy A. Dschida, MD
• John P. Tibble, DO

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