Quick answers
- Does Ying Fung accept Medicare assignment?
- Yes. Medicare's clinician data says Ying Fung 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 Ying Fung see?
- In 2024, CMS data shows 3,463 Original Medicare patients and 10,197 services for Ying Fung. This counts Original Medicare only and measures volume, not quality.
- What is Ying Fung's NPI number?
- 1326077736. 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 Ying Fung, 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 | 3,463 |
|---|---|
| Services billed to Medicare | 10,197 |
| Different services or procedures | 143 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection, gadobutrol, 0.1 ml (A9585)4,187 services
- X-ray of chest, 1 view (71045)816 services
- Screening mammography (77067)628 services
- Screening 3d breast mammography (77063)492 services
- X-ray of chest, 2 views (71046)283 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%
- Arthritis43%
- Diabetes33%
- Chronic kidney disease32%
- Ischemic heart disease26%
Hospitals where Ying Fung works
Medicare's Facility Affiliation Data lists Ying Fung 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
- Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050305
- Eden Medical CenterCastro Valley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050488
- Sutter Delta Medical CenterAntioch, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050523
- Sutter Solano Medical CenterVallejo, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050101
Practice locations
Addresses where Ying Fung is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 21; the Medicare profile lists all.
- 1001 Potrero AveSan Francisco, CA 94110
- 1002 Nut Tree RdVacaville, CA 95687 (707) 646‑4646
- 1020 Nut Tree Rd, Suite 150Vacaville, CA 95687 (559) 455‑4065
- 12 Camino EncinasOrinda, CA 94563 (925) 296‑7150
- 1300 Crane StMenlo Park, CA 94025 (650) 498‑6500
Group practices
Medicare enrollment lists Ying Fung as a member of these groups (CMS data updated October 2, 2026).
- University of California SFGH Medical Group587 clinicians in the group
- University Healthcare Alliance327 clinicians in the group
- Bay Imaging Consultants Medical Group Inc146 clinicians in the group
- Magnetic Imaging Affiliates LLC45 clinicians in the group
- Solano Diagnostics Partners a Calif Limited Partnership45 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists 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 | Icahn School Of Medicine At Mount Sinai |
| Graduation year | 1994 (32 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1326077736 |
| 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