Hansi Zhao, MD

Medicare activity in 2024

Official CMS public-use data for Hansi Zhao, 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. Anesthesia for lens surgery (00142)23 services
2. Anesthesia for other procedure on large bowel using an endoscope (00811)23 services
3. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)20 services
4. Anesthesia for procedure on small and large bowel using an endoscope (00813)20 services
5. Anesthesia for procedure for total knee joint replacement (01402)17 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%
• Arthritis50%
• Chronic kidney disease40%
• Ischemic heart disease35%
• Diabetes34%

Hospitals where Hansi Zhao works

Medicare's Facility Affiliation Data lists Hansi Zhao 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.

• Stanford Health Care Tri-ValleyPleasanton, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050283

Practice locations

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

• 5555 W Las Positas BlvdPleasanton, CA 94588 (678) 690‑7808

Group practices

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

• Premier Anesthesia of California PC46 clinicians in the group

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in California →

Other anesthesiologists in Pleasanton

Clinicians with the same Medicare primary specialty in Pleasanton, CA — not a recommendation.

• Radhika S. Annadata, MD
• Andrew Moreno, MD
• Tian Jiang, MD
• Nasim Irani, MD
• Mark K. Fujii, MD
• Michael Curtis, MD
• Emily Wei, MD
• Qianfang Ren, MD

All anesthesiologists in Pleasanton →

Other clinicians in Premier Anesthesia of California PC

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

• Radhika S. Annadata, MD
• Andrew Moreno, MD
• John C. Gainey, MD
• Tian Jiang, MD
• Qianfang Ren, MD
• Matthew B. Lee, 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