IndividualActive
Stephen Chan, PHARM. D
NPI 1659556140 · Pharmacist · San Francisco, CA
Stephen Chan, PHARM. D is a Pharmacist provider in San Francisco, CA (NPI 1659556140).
Provider details
- NPI number
- 1659556140
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- PHARM. D
- Sex
- Male
- Sole proprietor
- No
- License
- 60527 (CA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Detailed profile(88/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
4150 Clement Street
San Francisco, CA 94121
Phone: (415) 221-4810
Street-level locationGet directions
Mailing address
4150 Clement St
San Francisco, CA 94121-1545
Registry dates
- Enumerated
- 2008-01-03
- Last updated
- 2008-01-03
Frequently asked questions
- What is Stephen Chan's NPI number?
- Stephen Chan's National Provider Identifier (NPI) is 1659556140, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Chan's specialty?
- Stephen Chan is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Stephen Chan located?
- Stephen Chan's practice location on file with NPPES is 4150 Clement Street, San Francisco, CA 94121.
- What is Stephen Chan's phone number?
- The practice phone number listed in the NPPES registry for Stephen Chan is (415) 221-4810.
- Is Stephen Chan's NPI active?
- Yes — Stephen Chan's NPI (1659556140) is active in the NPPES registry as of the last update on 2008-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.