William Yuen, MD
Family Medicine Physician · San Jose, CA
William Yuen, MD is a family medicine physician with a practice address in San Jose, California, and NPI 1871113662, issued on Apr 21, 2020. Check the license (California A183626, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Yuen
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- A183626 CA
4301507871 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1721 Technology Dr, San Jose, CA 95110
- Phone
- (408) 436-3300
- Enumerated
- Apr 21, 2020
- Record last updated
- Sep 14, 2023
- Medicare enrollment
- Enrolled (PECOS I20231107001069); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1721 Technology Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Angela Chen, D.O.Family Medicine Physician1942735873
- Jeng-Yun Chen, PHARMDPharmacist1568586311
- Karey Crone, FNPFamily Nurse Practitioner1407633076
- Cristine Geraldine Flandez, FNP-BCFamily Nurse Practitioner1962050724
- Jennifer Gonzalez Oseguera, DOFamily Medicine Physician1366079485
- Isabella JajehPhysical Therapist1083534234
Verify William Yuen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A183626Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average family medicine physician in 2024
1,211 Medicare Part D claims for 260 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 12 claims were for opioids.
Most prescribed
- Atorvastatin Calcium81 claims
- Amlodipine Besylate62 claims
- Lisinopril59 claims
- Losartan Potassium58 claims
- Fluticasone Propionate54 claims
- Rosuvastatin Calcium49 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 Jose, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Yuen among 17,133 family medicine physician records in California
William Yuen, 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 2020, is newer than 88% of them.
- NPI issued2020 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2019 · median 2005 among the 10,652 with a school on file
- Record last updated2023 · 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).
265 family medicine physician records list a practice address in San Jose
They are 265 of the 20,925 NPPES records with a practice address in San Jose, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in San Jose → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Angela Bymaster, MDSan Jose, CA 951101437392263
- Angela Chen, D.O.San Jose, CA 951101942735873
- Melissa De LeonSan Jose, CA 951101003478637
- Jennifer Gonzalez Oseguera, DOSan Jose, CA 951101366079485
- Angela MapanaoSan Jose, CA 951101376171413
- Eureka Wu, DOSan Jose, CA 951101598260598
- Nhat Mai, M.D.San Jose, CA 951111417023029
- Tung Nguyen, DOSan Jose, CA 951111013982024
Common questions
What is William Yuen, MD's NPI number?
William Yuen, MD's National Provider Identifier (NPI) is 1871113662, issued on Apr 21, 2020. An NPI identifies a provider in billing; it is not a license.
Where is William Yuen, MD located?
The NPPES record lists a practice address at 1721 Technology Dr, San Jose, CA, 95110. Phone: (408) 436-3300. Providers update this record themselves, so call before visiting.
How can I verify William Yuen, MD's license?
NPPES lists California license number A183626, 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 William Yuen, MD prescribe under Medicare Part D?
In 2024, William Yuen, MD had 1,211 Medicare Part D claims for 260 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.