Spencer Tung, MD
NPI 1487234860 · Family Medicine Physician · San Mateo, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Spencer Tung, MD is a Family Medicine Physician provider in San Mateo, CA (NPI 1487234860).
Provider details
- NPI number
- 1487234860
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A193175 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 51 | 22 |
| Losartan Potassium | 27 | 13 |
| Amlodipine Besylate | 26 | 17 |
| Gabapentin | 22 | — |
| Glipizide | 18 | — |
| Empagliflozinbrand: Jardiance | 17 | — |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-04-10
- Last updated
- 2024-11-03
- Certified
- 2024-11-03
Frequently asked questions
- What is Spencer Tung's NPI number?
- Spencer Tung's National Provider Identifier (NPI) is 1487234860, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Spencer Tung's specialty?
- Spencer Tung is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Spencer Tung located?
- Spencer Tung's practice location on file with NPPES is 1000 Franklin Pkwy, San Mateo, CA 94403-1922.
- What is Spencer Tung's phone number?
- The practice phone number listed in the NPPES registry for Spencer Tung is (650) 358-7000.
- Does Spencer Tung accept Medicare?
- Spencer Tung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Spencer Tung's NPI active?
- Yes — Spencer Tung's NPI (1487234860) is active in the NPPES registry as of the last update on 2024-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.