Sai Ying May Tang, NP
NPI 1164772448ActiveIndividual· Nurse Practitioner, Adult Health· San Francisco, CA
Nurse Practitioner, Adult Health (NP) with Alameda Health System and 1 other group, practicing in San Francisco, California. 350 Medicare patients in 2024, $38,948 paid; nearly all of their 85 Part D prescriptions were generic (92%). Abiomed was the largest of 2 companies reporting payments in 2025, $800.03 in all, mostly travel and lodging. Lists Alameda Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1164772448 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | Yes |
| NPI issued | Sep 14, 2012 |
| Last updated in NPPES | Sep 23, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Adult Health Primary | 363LA2200X | 21809 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 350 |
|---|---|
| Services billed | 540 across 13 procedure codes |
| Paid by Medicare | $38,948 |
Part D prescriptions in 2024
| Prescriptions (claims) | 85 · 132 30-day fills |
|---|---|
| Patients | 57 |
| Total drug cost | $4,289 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Alameda Health SystemOakland, CA · 601 clinicians
- John Muir Physician NetworkPleasant Hill, CA · 494 clinicians
Hospital affiliations
- Alameda HospitalAlameda, CA
- Highland HospitalOakland, CA
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$800.03 · 6 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abiomed | $780.28 | 5 |
| Merck Sharp & Dohme LLC | $19.75 | 1 |
What the 2025 payments were for
- Travel and Lodging$470.28 · 1 payment
- Food and Beverage$329.75 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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