Stephen Yan
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Lake Oswego, OR
Stephen Yan is a pharmacist clinician (phc)/ clinical pharmacy specialist with a practice address in Lake Oswego, Oregon, and NPI 1578854907, issued on Apr 19, 2011. Check the license (Oregon 8797, as entered in NPPES) with the Oregon board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Stephen Yan
- Primary taxonomy
- Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist 1835P0018X
- License number
- 8797 OR
Self-reported in NPPES; status is on the state search - Practice location
- 18440 Delenka LN, Lake Oswego, OR 97034
- Phone
- (503) 351-6775
- Enumerated
- Apr 19, 2011
- Record last updated
- Dec 30, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist clinician (phc)/ clinical pharmacy specialist records → All 985 in Oregon → Look up another NPI →
Also registered at 18440 Delenka LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Leslye-Nicola Worsfold, LCSWClinical Social Worker1700518883
Verify Stephen Yan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 8797Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Stephen Yan among 985 pharmacist clinician (phc)/ clinical pharmacy specialist records in Oregon
Stephen Yan is one of 985 pharmacist clinician (phc)/ clinical pharmacy specialist records with a practice address in Oregon. 27% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2011, is newer than 18% of them.
- NPI issued2011 · 18% of these records are older, 75% newer
- In a Medicare fileNo · 27% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2015 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1835P0018X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist providers in Oregon
There are 985 pharmacist clinician (phc)/ clinical pharmacy specialist records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 985 in Oregon → Every provider in Lake Oswego → Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist nationwide →
The 8 pharmacist clinician (phc)/ clinical pharmacy specialist records with the nearest ZIP codes
- Alison MillerLake Oswego, OR 970341306142542
- Stacy Hampton, PHARM.D., PA-CLake Oswego, OR 970351104016500
- Tina Huynh, PHARMDLake Oswego, OR 970351164824850
- Kelly Nguyen, PHARMDLake Oswego, OR 970351699242693
- Diana Sakamoto, PHARM.D.Lake Oswego, OR 970351730413527
- Kathleen Dehart, RPHHood River, OR 970311750782058
- Matthew Hoctor, PHARMDHood River, OR 970311376031146
- Scott Perry, R.PHHood River, OR 970311972819902
Common questions
What is Stephen Yan's NPI number?
Stephen Yan's National Provider Identifier (NPI) is 1578854907, issued on Apr 19, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Yan located?
The NPPES record lists a practice address at 18440 Delenka LN, Lake Oswego, OR, 97034. Phone: (503) 351-6775. Providers update this record themselves, so call before visiting.
How can I verify Stephen Yan's license?
NPPES lists Oregon license number 8797, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.