Xiao Zhao, MD

Medicare activity in 2024

Official CMS public-use data for Xiao 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. Ct guidance for insertion of radiation therapy fields (77014)1,006 services
2. Calculation of radiation therapy dose (77300)277 services
3. Design and construction of complex radiation treatment device (77334)261 services
4. Radiation treatment management, 5 treatment sessions (77427)222 services
5. Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)150 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).

• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
• High cholesterol70%
• High blood pressure68%
• Arthritis42%
• Diabetes28%
• Ischemic heart disease23%

Hospitals where Xiao Zhao works

Medicare's Facility Affiliation Data lists Xiao 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.

• University of California Davis Medical CenterSacramento, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050599

Practice locations

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

• 3850 G StMerced, CA 95340 (209) 384‑6528

Group practices

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

• Regents of the Univ of Ca1,584 clinicians in the group

Specialties

• Radiation Oncologyprimary

Find other Radiation Oncology doctors in California →

Other radiation oncologists in Merced

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

• Richard K. Valicenti, MD
• Ruben C. Fragoso, MD
• Mihoko Fujita, MD
• Alireza Mahmoudieh, MD

All radiation oncologists in Merced →

Other clinicians in Regents of the Univ of Ca

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

• Sunil K. Saini, MD
• Shasta M. Stephens, NP
• Codi D. Cole, NP
• Andrew J. Nelson, MD
• Eve T. Rodler, MD
• Sophie X. Teng, 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