Simon Ma, MD, MPH
NPI 1811578461 belongs to Simon Ma, MD, MPH, an addiction medicine (family medicine) physician with a practice location in San Leandro, CA. The NPI was issued on April 15, 2021, and the record was last updated in NPPES on October 6, 2025. The record lists 2 taxonomy codes.
Taxonomies and licenses
| Taxonomy | Code | License |
|---|---|---|
| Addiction Medicine (Family Medicine) Physician Primary | 207QA0401X | 191827 (CA) |
| Family Medicine Physician | 207Q00000X | 191827 (CA) |
Practice location
Local context
Active NPPES records list 26 providers with addiction medicine (family medicine) physician as the primary taxonomy within 25 miles of this practice location's ZIP code, 6 of them within 10 miles.
The same primary taxonomy is listed by 183 in California and 1,636 nationwide.
These are counts from NPPES records, not a ranking or recommendation. Distances are measured between ZIP code centers, not street addresses.
Record history
- Name on record
- Simon Ma
- Status
- Active
- NPI issued
- Last updated in NPPES
Is this your record? Updates are made through NPPES, the official National Plan and Provider Enumeration System.
NPPES data as of · Source: CMS NPPES
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