Quick answers
- Does Hui M. Yang accept Medicare assignment?
- Medicare's clinician data says Hui M. Yang may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Hui M. Yang see?
- In 2024, CMS data shows 243 Original Medicare patients and 867 services for Hui M. Yang. This counts Original Medicare only and measures volume, not quality.
- What is Hui M. Yang's NPI number?
- 1013212265. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Hui M. Yang, 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.
| Original Medicare patients | 243 |
|---|---|
| Services billed to Medicare | 867 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 82 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)339 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)133 services
- Hospital discharge day management, more than 30 minutes (99239)131 services
- Critical care, first 30-74 minutes (99291)73 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)55 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 cholesterol72%
- Chronic kidney disease50%
- Diabetes47%
- Arthritis44%
- Heart failure37%
Hospitals where Hui M. Yang works
Medicare's Facility Affiliation Data lists Hui M. Yang 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.
- Chinese HospitalSan Francisco, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050407
Practice locations
Addresses where Hui M. Yang is enrolled with Medicare (CMS data updated October 2, 2026).
- 845 Jackson StSan Francisco, CA 94133 (415) 779‑8868
Group practices
Medicare enrollment lists Hui M. Yang as a member of this group (CMS data updated October 2, 2026).
- San Francisco Unified Physicians Group, Inc19 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Other clinicians in San Francisco Unified Physicians Group, Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1013212265 |
| Corrections | Report an error or suggest an update → |
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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians