Tian Hao Zhu, MD

Medicare activity in 2024

Official CMS public-use data for Tian Hao Zhu, 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. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)774 services
2. Destruction of precancer skin growth, 2-14 growths (17003)411 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)329 services
4. Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks (17311)326 services
5. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)231 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 cholesterol75%
• High blood pressure73%
• Arthritis40%
• Diabetes29%
• Chronic kidney disease28%
• Ischemic heart disease23%

Hospitals where Tian Hao Zhu works

Medicare's Facility Affiliation Data lists Tian Hao Zhu 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.

• Eden Medical CenterCastro Valley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050488

Practice locations

Addresses where Tian Hao Zhu is enrolled with Medicare (CMS data updated October 2, 2026).

• 20400 Lake Chabot Rd, Suite 202Castro Valley, CA 94546 (510) 881‑7822
• 3562 Round Barn Cir, Suite 320Santa Rosa, CA 95403 (707) 578‑1900

Group practices

Medicare enrollment lists Tian Hao Zhu as a member of this group (CMS data updated October 2, 2026).

• Csi Medical Group111 clinicians in the group

Specialties

• Dermatologyprimary

Find other Dermatology doctors in California →

Other dermatologists in California

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

• Seymour M. Weaver Iii, MD
• Catherine Wang, MD
• Dorota Z. Korta, MD
• Mira Stotland, MD
• Alan Rosenbach, MD
• John M. Yost, MD
• Paul S. Yamauchi, MD
• Lisa Benest, MD

All dermatologists in California →

Other clinicians in Csi Medical Group

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

• Tian Ran Zhu, MD
• Katherine Steffens, PA
• Cary E. Feibleman, MD
• Rachel S. Lau, PA
• Ilisten M. Jones, MD
• Moriah Barboza, NP

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