Stephen S. Leung, M.D.
Family Medicine Physician · San Gabriel, CA
Stephen S. Leung, M.D. is a family medicine physician with a practice address in San Gabriel, California, and NPI 1306969308, issued on Apr 6, 2007. Check the license (California A52914, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen S. Leung
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A52914 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1045 E Valley Blvd, San Gabriel, CA 91776
- Phone
- (626) 572-0012
- Enumerated
- Apr 6, 2007
- Record last updated
- Aug 4, 2022
- Fax
- (626) 572-0799
- Medicaid ID
- 00A529140 CA
- Medicare enrollment
- Enrolled (PECOS I20120320000982); 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 1045 E Valley Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Andy ZhangStudent in an Organized Health Care Education/Training Program1972026888
Verify Stephen S. Leung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A52914Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% more Medicare Part D claims than the average family medicine physician in 2024
3,953 Medicare Part D claims for 243 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium349 claims
- Losartan Potassium249 claims
- Alendronate Sodium227 claims
- Amlodipine Besylate225 claims
- Metformin Hcl222 claims
- Raloxifene Hcl175 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
- Amg A Professional Medical CorporationAlhambra, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen S. Leung among 17,133 family medicine physician records in California
Stephen S. Leung, M.D. 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 47% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1980 · median 2005 among the 10,652 with a school on file
- Record last updated2022 · 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).
23 family medicine physician records list a practice address in San Gabriel
They are 23 of the 762 NPPES records with a practice address in San Gabriel, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in San Gabriel → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Judith Cagan, M.D.San Gabriel, CA 917761194808923
- Luke Chan, M.D.San Gabriel, CA 917761558374116
- Sheng Chang, MDSan Gabriel, CA 917761871589903
- Hsiao- Fen Chen, M.DSan Gabriel, CA 917761366483497
- Hubert Chow, M.D.San Gabriel, CA 917761669697686
- Ying Feng Huang, M.D.San Gabriel, CA 917761134155146
- Susan Jung, MDSan Gabriel, CA 917761962415588
- Dan Le, D.O.San Gabriel, CA 917761790980258
Common questions
What is Stephen S. Leung, M.D.'s NPI number?
Stephen S. Leung, M.D.'s National Provider Identifier (NPI) is 1306969308, issued on Apr 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Stephen S. Leung, M.D. located?
The NPPES record lists a practice address at 1045 E Valley Blvd, San Gabriel, CA, 91776. Phone: (626) 572-0012. Providers update this record themselves, so call before visiting.
How can I verify Stephen S. Leung, M.D.'s license?
NPPES lists California license number A52914, 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 Stephen S. Leung, M.D. prescribe under Medicare Part D?
In 2024, Stephen S. Leung, M.D. had 3,953 Medicare Part D claims for 243 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.