Spencer Tung, MD
Family Medicine Physician · San Mateo, CA
Spencer Tung, MD is a family medicine physician with a practice address in San Mateo, California, and NPI 1487234860, issued on Apr 10, 2021. Check the license (California A193175, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Spencer Tung
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A193175 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Franklin Pkwy, San Mateo, CA 94403
- Phone
- (650) 358-7000
- Enumerated
- Apr 10, 2021
- Record last updated
- Nov 3, 2024
- Medicare enrollment
- Enrolled (PECOS I20250108001928); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1000 Franklin Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Katherine Rose De Jong, M.D.Pediatrics Physician1013180579
- Jonathan HuangPediatrics Physician1194286179
- Clara KoPharmacist1508399882
- Babak MehraeenPharmacist1235662289
- Seethim Naicker, MDFamily Medicine Physician1003443052
Verify Spencer Tung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A193175Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average family medicine physician in 2024
541 Medicare Part D claims for 125 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium51 claims
- Losartan Potassium27 claims
- Amlodipine Besylate26 claims
- Gabapentin22 claims
- Glipizide18 claims
- Jardiance17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Permanente Medical Group IncSan Mateo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Spencer Tung among 17,133 family medicine physician records in California
Spencer Tung, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2020 · median 2005 among the 10,652 with a school on file
- Record last updated2024 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
39 family medicine physician records list a practice address in San Mateo
They are 39 of the 3,909 NPPES records with a practice address in San Mateo, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in San Mateo → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Eliane Bitar, MDSan Mateo, CA 944031679036875
- Deepal Chhaganlal, MDSan Mateo, CA 944031225692122
- Ernesto Hipolito, MDSan Mateo, CA 944031902967342
- Cora Hoover, M.D.San Mateo, CA 944031518025865
- Sana Jivraj, MDSan Mateo, CA 944031881047181
- Yi Yi Liu, MDSan Mateo, CA 944031255416236
- Scott Morrow, MD MPH MBASan Mateo, CA 944031548316342
- Margaret Murray, MDSan Mateo, CA 944031275093957
Common questions
What is Spencer Tung, MD's NPI number?
Spencer Tung, MD's National Provider Identifier (NPI) is 1487234860, issued on Apr 10, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Spencer Tung, MD located?
The NPPES record lists a practice address at 1000 Franklin Pkwy, San Mateo, CA, 94403. Phone: (650) 358-7000. Providers update this record themselves, so call before visiting.
How can I verify Spencer Tung, MD's license?
NPPES lists California license number A193175, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Spencer Tung, MD prescribe under Medicare Part D?
In 2024, Spencer Tung, MD had 541 Medicare Part D claims for 125 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.