Quick answers
- Does Bertrand Y. Tuan accept Medicare assignment?
- Yes. Medicare's clinician data says Bertrand Y. Tuan 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 Bertrand Y. Tuan see?
- In 2024, CMS data shows 552 Original Medicare patients and 130,844 services for Bertrand Y. Tuan. This counts Original Medicare only and measures volume, not quality.
- What is Bertrand Y. Tuan's NPI number?
- 1578632980. 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 Bertrand Y. Tuan, 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 | 552 |
|---|---|
| Services billed to Medicare | 130,844 |
| Different services or procedures | 116 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Injection, darbepoetin alfa, 1 microgram (non-esrd use) (J0881)17,043 services
- Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) (Q0138)14,280 services
- Injection, denosumab, 1 mg (J0897)8,780 services
- Injection, pembrolizumab, 1 mg (J9271)7,300 services
- Injection, daratumumab, 10 mg and hyaluronidase-fihj (J9144)4,871 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 cholesterol74%
- High blood pressure72%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)41%
- Arthritis40%
- Diabetes32%
- Chronic kidney disease30%
Hospitals where Bertrand Y. Tuan works
Medicare's Facility Affiliation Data lists Bertrand Y. Tuan 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.
- California Pacific Medical Center - Mission BernalSan Francisco, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050055
- California Pacific Medical Center- Van Ness CampusSan Francisco, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050047
- California Pacific Medical Center-Davies Campus HospitalSan Francisco, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050008
- Novato Community HospitalNovato, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050131
- Peninsula Medical CenterBurlingame, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050007
Practice locations
Addresses where Bertrand Y. Tuan is enrolled with Medicare (CMS data updated October 2, 2026).
- 2100 Webster St, Suite 200San Francisco, CA 94115 (415) 600‑7860
- 2100 Webster St, Suite 225San Francisco, CA 94115 (415) 923‑3012
Group practices
Medicare enrollment lists Bertrand Y. Tuan as a member of these groups (CMS data updated October 2, 2026).
- Sutter Bay Medical Foundation3,829 clinicians in the group
- Pacific Hematology Oncology Assoc.3 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Other clinicians in Sutter Bay Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albert Einstein College Of Medicine Of Yeshiva University |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1578632980 |
| 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