IndividualActive
Jeffrey Lien
NPI 1841959905 · Pharmacist · Mill Valley, CA
Jeffrey Lien is a Pharmacist provider in Mill Valley, CA (NPI 1841959905).
Provider details
- NPI number
- 1841959905
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 85301 (CA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Established profile(61/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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
227 Shoreline Hwy
Mill Valley, CA 94941-3678
Phone: (415) 380-8402
Street-level locationGet directions
Mailing address
230 Morningside Dr
San Francisco, CA 94132-1241
Registry dates
- Enumerated
- 2021-12-15
- Last updated
- 2021-12-15
- Certified
- 2021-12-15
Frequently asked questions
- What is Jeffrey Lien's NPI number?
- Jeffrey Lien's National Provider Identifier (NPI) is 1841959905, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Lien's specialty?
- Jeffrey Lien is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Jeffrey Lien located?
- Jeffrey Lien's practice location on file with NPPES is 227 Shoreline Hwy, Mill Valley, CA 94941-3678.
- What is Jeffrey Lien's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Lien is (415) 380-8402.
- Is Jeffrey Lien's NPI active?
- Yes — Jeffrey Lien's NPI (1841959905) is active in the NPPES registry as of the last update on 2021-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.