IndividualActive
Calvin Chan, PHARM. D.
NPI 1639483324 · Pharmacist · San Francisco, CA
Calvin Chan, PHARM. D. is a Pharmacist provider in San Francisco, CA (NPI 1639483324).
Provider details
- NPI number
- 1639483324
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- PHARM. D.
- Sex
- Male
- Sole proprietor
- No
- License
- 63976 (CA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Detailed profile(83/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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.
Practice location
2550 Ocean Ave
San Francisco, CA 94132-1614
Phone: (415) 587-9000
Street-level locationGet directions
Mailing address
400 Eucalyptus Dr
San Francisco, CA 94132-1529
Registry dates
- Enumerated
- 2010-08-05
- Last updated
- 2010-08-05
Frequently asked questions
- What is Calvin Chan's NPI number?
- Calvin Chan's National Provider Identifier (NPI) is 1639483324, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Calvin Chan's specialty?
- Calvin Chan is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Calvin Chan located?
- Calvin Chan's practice location on file with NPPES is 2550 Ocean Ave, San Francisco, CA 94132-1614.
- What is Calvin Chan's phone number?
- The practice phone number listed in the NPPES registry for Calvin Chan is (415) 587-9000.
- Is Calvin Chan's NPI active?
- Yes — Calvin Chan's NPI (1639483324) is active in the NPPES registry as of the last update on 2010-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.