Gary Choy, PHARM.D.
NPI 1366528150 · Pharmacotherapy Pharmacist · Oakland, CA
Gary Choy, PHARM.D. is a Pharmacotherapy Pharmacist provider in Oakland, CA (NPI 1366528150).
Provider details
- NPI number
- 1366528150
- Entity type
- Individual
- Primary specialty
- Pharmacotherapy PharmacistPharmacy Service Providers
- Credential
- PHARM.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 46247 (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
19 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 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 786 | 289 |
| Metformin Hcl | 515 | 185 |
| Glipizide | 388 | 139 |
| Losartan Potassium | 331 | 116 |
| Lisinopril | 297 | 115 |
| Semaglutidebrand: Ozempic | 260 | 46 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-27
- Last updated
- 2021-12-21
- Certified
- 2021-12-21
Frequently asked questions
- What is Gary Choy's NPI number?
- Gary Choy's National Provider Identifier (NPI) is 1366528150, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Choy's specialty?
- Gary Choy is listed in the NPPES registry with a primary specialty of Pharmacotherapy Pharmacist (Pharmacy Service Providers).
- Where is Gary Choy located?
- Gary Choy's practice location on file with NPPES is 280 W Macarthur Blvd, Oakland, CA 94611-5642.
- What is Gary Choy's phone number?
- The practice phone number listed in the NPPES registry for Gary Choy is (510) 752-6443.
- Is Gary Choy's NPI active?
- Yes — Gary Choy's NPI (1366528150) is active in the NPPES registry as of the last update on 2021-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.