William Martin, PHARMD, RPH
NPI 1558841734 · Pharmacist · San Francisco, CA
William Martin, PHARMD, RPH is a Pharmacist provider in San Francisco, CA (NPI 1558841734).
Provider details
- NPI number
- 1558841734
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- PHARMD, RPH
- Sex
- Male
- Sole proprietor
- No
- License
- 78675 (CA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 90 | 49 |
| Lorazepam | 77 | 39 |
| Trazodone Hcl | 66 | 46 |
| Gabapentin | 40 | 37 |
| Fluoxetine Hcl | 39 | 23 |
| Quetiapine Fumarate | 39 | 29 |
| Sertraline Hcl | 30 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-08-17
- Last updated
- 2021-11-26
- Certified
- 2021-11-26
Frequently asked questions
- What is William Martin's NPI number?
- William Martin's National Provider Identifier (NPI) is 1558841734, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Martin's specialty?
- William Martin is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is William Martin located?
- William Martin's practice location on file with NPPES is 4131 Geary Blvd Ste 112, San Francisco, CA 94118-3101.
- What is William Martin's phone number?
- The practice phone number listed in the NPPES registry for William Martin is (415) 833-6709.
- Is William Martin's NPI active?
- Yes — William Martin's NPI (1558841734) is active in the NPPES registry as of the last update on 2021-11-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.