Quick answers
- Does Yuyang J. Mei accept Medicare assignment?
- Yes. Medicare's clinician data says Yuyang J. Mei accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Yuyang J. Mei see?
- In 2024, CMS data shows 81 Original Medicare patients and 155 services for Yuyang J. Mei. This counts Original Medicare only and measures volume, not quality.
- What is Yuyang J. Mei's NPI number?
- 1013440916. 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 Yuyang J. Mei, 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 | 81 |
|---|---|
| Services billed to Medicare | 155 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)71 services
- Hospital discharge day management, more than 30 minutes (99239)24 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)22 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)12 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)11 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 cholesterol64%
- Diabetes54%
- Chronic kidney disease43%
- COPD36%
- Heart failure31%
Hospitals where Yuyang J. Mei works
Medicare's Facility Affiliation Data lists Yuyang J. Mei 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.
- Alta Bates Summit Medical CenterOakland, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050043
- Eden Medical CenterCastro Valley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050488
- Zuckerberg San Francisco General Hospital & Trauma CenterSan Francisco, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050228
Practice locations
Addresses where Yuyang J. Mei is enrolled with Medicare (CMS data updated October 2, 2026).
- 1001 Potrero AveSan Francisco, CA 94110
- 1001 Potrero Ave Bldg 80 Ward 83, Suite 32San Francisco, CA 94110 (628) 206‑8610
- 818 Webster StOakland, CA 94607 (510) 986‑6800
Group practices
Medicare enrollment lists Yuyang J. Mei as a member of these groups (CMS data updated October 2, 2026).
- University of California SFGH Medical Group587 clinicians in the group
- Asian Health Services94 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Other clinicians in University of California SFGH Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 2017 (9 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1013440916 |
| 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