Catherine Yen
NPI 1184240673 · Pharmacist · San Francisco, CA
Catherine Yen is a Pharmacist provider in San Francisco, CA (NPI 1184240673).
Provider details
- NPI number
- 1184240673
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 68136 (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
6 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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 51 | 51 |
| Dexamethasone | 37 | 34 |
| Levetiracetam | 26 | 21 |
| Famotidine | 20 | 17 |
| Ondansetron Hcl | 16 | 16 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-06-19
- Last updated
- 2020-06-20
- Certified
- 2020-06-20
Frequently asked questions
- What is Catherine Yen's NPI number?
- Catherine Yen's National Provider Identifier (NPI) is 1184240673, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Yen's specialty?
- Catherine Yen is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Catherine Yen located?
- Catherine Yen's practice location on file with NPPES is 505 Parnassus Ave, San Francisco, CA 94143-2204.
- What is Catherine Yen's phone number?
- The practice phone number listed in the NPPES registry for Catherine Yen is (415) 353-1154.
- Is Catherine Yen's NPI active?
- Yes — Catherine Yen's NPI (1184240673) is active in the NPPES registry as of the last update on 2020-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.