Stephen Yan
NPI 1578854907 · Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Lake Oswego, OR
Stephen Yan is a Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist provider in Lake Oswego, OR (NPI 1578854907).
Provider details
- NPI number
- 1578854907
- Entity type
- Individual
- Primary specialty
- Pharmacist Clinician (PhC)/ Clinical Pharmacy SpecialistPharmacy Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 8797 (OR)
Specialties & taxonomies
Pharmacy Service Providers
Pharmacy Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
Mailing address
Registry dates
- Enumerated
- 2011-04-19
- Last updated
- 2015-12-30
Frequently asked questions
- What is Stephen Yan's NPI number?
- Stephen Yan's National Provider Identifier (NPI) is 1578854907, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Yan's specialty?
- Stephen Yan is listed in the NPPES registry with a primary specialty of Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist (Pharmacy Service Providers).
- Where is Stephen Yan located?
- Stephen Yan's practice location on file with NPPES is 18440 Delenka Ln, Lake Oswego, OR 97034-7579.
- What is Stephen Yan's phone number?
- The practice phone number listed in the NPPES registry for Stephen Yan is (503) 351-6775.
- Is Stephen Yan's NPI active?
- Yes — Stephen Yan's NPI (1578854907) is active in the NPPES registry as of the last update on 2015-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.