Gregory Matsumura, PHARM.D.
NPI 1548716053 · Pharmacist · San Jose, CA
Gregory Matsumura, PHARM.D. is a Pharmacist provider in San Jose, CA (NPI 1548716053).
Provider details
- NPI number
- 1548716053
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- PHARM.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 74879 (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
9 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 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 378 | 58 |
| Atorvastatin Calcium | 360 | 141 |
| Metformin Hcl | 167 | 70 |
| Glipizide | 144 | 58 |
| Metformin Hclbrand: Metformin Hcl Er | 144 | 58 |
| Empagliflozinbrand: Jardiance | 122 | 47 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-08-25
- Last updated
- 2021-11-22
- Certified
- 2021-11-22
Frequently asked questions
- What is Gregory Matsumura's NPI number?
- Gregory Matsumura's National Provider Identifier (NPI) is 1548716053, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Matsumura's specialty?
- Gregory Matsumura is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Gregory Matsumura located?
- Gregory Matsumura's practice location on file with NPPES is 480 Archglen Way, San Jose, CA 95111-1734.
- What is Gregory Matsumura's phone number?
- The practice phone number listed in the NPPES registry for Gregory Matsumura is (408) 833-4676.
- Is Gregory Matsumura's NPI active?
- Yes — Gregory Matsumura's NPI (1548716053) is active in the NPPES registry as of the last update on 2021-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.