Robert Zehnder, PHARM. D.
NPI 1841351236 · Pharmacist · San Francisco, CA
Robert Zehnder, PHARM. D. is a Pharmacist provider in San Francisco, CA (NPI 1841351236).
Provider details
- NPI number
- 1841351236
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- PHARM. D.
- Sex
- Male
- Sole proprietor
- No
- License
- 42619 (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 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 77 | 32 |
| Metformin Hclbrand: Metformin Hcl Er | 69 | 35 |
| Pen Needle, Diabeticbrand: Ultra-Fine Nano Pen Needle | 40 | 21 |
| Insulin Nph Human Isophanebrand: Humulin N | 34 | 17 |
| Metformin Hcl | 33 | 19 |
| Syringe-Needle,insulin,0.5 Mlbrand: Veo Insulin Syringe | 30 | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Robert Zehnder's NPI number?
- Robert Zehnder's National Provider Identifier (NPI) is 1841351236, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Zehnder's specialty?
- Robert Zehnder is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Robert Zehnder located?
- Robert Zehnder's practice location on file with NPPES is 2238 Geary Blvd, San Francisco, CA 94115-3416.
- What is Robert Zehnder's phone number?
- The practice phone number listed in the NPPES registry for Robert Zehnder is (415) 833-3703.
- Is Robert Zehnder's NPI active?
- Yes — Robert Zehnder's NPI (1841351236) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.