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Internal Medicine

Hui M. Yang, MD

Works at hospitals in San Francisco, CA · California

Summary

Dr. Hui M. Yang, MD is an internal medicine doctor at 845 Jackson St, San Francisco, CA 94133. Phone: (415) 779-8868. May accept Medicare assignment. In 2024, Hui M. Yang had 243 Original Medicare patients and 867 services. NPI 1013212265. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 845 Jackson St, San Francisco, CA 94133 · Directions
  • Phone: (415) 779‑8868
  • Medicare: May accept Medicare assignment
  • Hospital: Chinese Hospital
  • Group practice: San Francisco Unified Physicians Group, Inc
  • Medical school: graduated 1988 (38 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Hui M. Yang, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

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 patients243
Services billed to Medicare867
Different services or procedures10
Participating Medicare providerYes
Average age of these patients82

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)339 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)133 services
  3. Hospital discharge day management, more than 30 minutes (99239)131 services
  4. Critical care, first 30-74 minutes (99291)73 services
  5. 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).

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

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Francisco

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

All internal medicine doctors in San Francisco →

Other clinicians in San Francisco Unified Physicians Group, Inc

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

Clinician information

CredentialMD
Graduation year1988 (38 years since medical school)
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1013212265
CorrectionsReport 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

  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