Yan P. Zhang, MD

Medicare activity in 2024

Official CMS public-use data for Yan P. Zhang, 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. Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)8,111 services
2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)4,845 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)1,687 services
4. Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)849 services
5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)410 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%
• Arthritis75%
• Depression75%
• Anxiety75%
• COPD75%

Hospitals where Yan P. Zhang works

Medicare's Facility Affiliation Data lists Yan P. Zhang 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.

• Greater El Monte Community HospitalSouth el Monte, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 050738
• L A Downtown Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050763
• San Gabriel Valley Medical CenterSan Gabriel, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050132

Practice locations

Addresses where Yan P. Zhang is enrolled with Medicare (CMS data updated October 2, 2026).

• 1711 W Temple St, Suite 1065Los Angeles, CA 90026 (626) 234‑7161

Specialties

• Internal Medicineprimary
• Family Practicealso
• General Practicealso
• Geriatric Medicinealso

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Los Angeles

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

• Olivia A. Ghobryal, MD
• Jacob Pelta, MD
• Bhisit Changcharoen, MD
• John C. Lee, MD
• Mike B. Uyeki, MD
• Kristoff V. Foster, MD
• Kenneth D. Burns, MD
• Camilo E. Cano Portillo, MD

All internal medicine doctors in Los Angeles →

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