Lok Shun (lenny) Chan, PHARMD
NPI 1902920721 · Pharmacotherapy Pharmacist · San Francisco, CA
Lok Shun (lenny) Chan, PHARMD is a Pharmacotherapy Pharmacist provider in San Francisco, CA (NPI 1902920721).
Provider details
- NPI number
- 1902920721
- Entity type
- Individual
- Primary specialty
- Pharmacotherapy PharmacistPharmacy Service Providers
- Credential
- PHARMD
- Sex
- Male
- Sole proprietor
- No
- License
- RPH51948 (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 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 115 | 47 |
| Losartan Potassium | 107 | 36 |
| Atorvastatin Calcium | 96 | 39 |
| Empagliflozinbrand: Jardiance | 71 | 27 |
| Metformin Hclbrand: Metformin Hcl Er | 67 | 29 |
| Semaglutidebrand: Ozempic | 50 | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-19
- Last updated
- 2009-04-22
Frequently asked questions
- What is Lok Shun (lenny) Chan's NPI number?
- Lok Shun (lenny) Chan's National Provider Identifier (NPI) is 1902920721, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lok Shun (lenny) Chan's specialty?
- Lok Shun (lenny) Chan is listed in the NPPES registry with a primary specialty of Pharmacotherapy Pharmacist (Pharmacy Service Providers).
- Where is Lok Shun (lenny) Chan located?
- Lok Shun (lenny) Chan's practice location on file with NPPES is 2789 25th St Ste 202, San Francisco, CA 94110-3516.
- What is Lok Shun (lenny) Chan's phone number?
- The practice phone number listed in the NPPES registry for Lok Shun (lenny) Chan is (415) 206-2330.
- Is Lok Shun (lenny) Chan's NPI active?
- Yes — Lok Shun (lenny) Chan's NPI (1902920721) is active in the NPPES registry as of the last update on 2009-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.