Zhibo An, MD

Medicare activity in 2024

Official CMS public-use data for Zhibo An, 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. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)45 services
2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)32 services
3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)29 services
4. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)28 services
5. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)20 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 cholesterol71%
• High blood pressure70%
• Arthritis46%
• Diabetes32%
• Ischemic heart disease30%
• Depression27%

Hospitals where Zhibo An works

Medicare's Facility Affiliation Data lists Zhibo An 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.

• Indiana University HealthIndianapolis, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150056

Practice locations

Addresses where Zhibo An is enrolled with Medicare (CMS data updated October 2, 2026).

• 1701 N Senate BlvdIndianapolis, IN 46202 (888) 484‑3258

Group practices

Medicare enrollment lists Zhibo An as a member of this group (CMS data updated October 2, 2026).

• IU Health Medical Group LLC4,462 clinicians in the group

Specialties

• Gastroenterologyprimary
• Internal Medicinealso

Find other Gastroenterology doctors in Indiana →

Other gastroenterologists in Indianapolis

Clinicians with the same Medicare primary specialty in Indianapolis, IN — not a recommendation.

• Megan J. Walker, MD
• Robert N. Murray, MD
• David B. Thomas, MD
• Mustapha El Halabi, MD
• Craig S. Lammert, MD
• Hanisha Manickavasagan, MD
• Charles J. Kahi, MD
• Sakib K. Khalid, MD

All gastroenterologists in Indianapolis →

Other clinicians in IU Health Medical Group LLC

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

• Megan J. Walker, MD
• Kathryn Kimpel, MD
• Sneha Koneru, MD
• Elisabeth M. Bernal, NP
• Alexis T. Brawner, MD
• Katherine Miller, 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