William Leissner, PSS
Peer Specialist · Portland, OR
William Leissner, PSS is a peer specialist with a practice address in Portland, Oregon, and NPI 1205287026, issued on Jun 22, 2016. Check the license with the Oregon board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Leissner
- Credential
- PSS
- Primary taxonomy
- Peer Specialist 175T00000X
- Practice location
- 30 NE Mlk, Portland, OR 97232
- Phone
- (503) 232-1099
- Enumerated
- Jun 22, 2016
- Record last updated
- May 22, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest peer specialist records → All 3,348 in Oregon → Look up another NPI →
Also registered at 30 NE Mlk
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian GarnerPeer Specialist1568191948
- Spencer Winchester, RNPsychiatric/Mental Health Nurse Practitioner1407578313
Verify William Leissner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Leissner among 3,348 peer specialist records in Oregon
William Leissner, PSS is one of 3,348 peer specialist records with a practice address in Oregon. 0% 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 2016, is newer than 5% of them.
- NPI issued2016 · 5% of these records are older, 89% newer
- In a Medicare fileNo · 0% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2020 · 33% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 175T00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
756 peer specialist records list a practice address in Portland
They are 756 of the 42,088 NPPES records with a practice address in Portland, and 3,348 peer specialist records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,348 in Oregon → Every provider in Portland → Peer Specialist nationwide →
The 8 peer specialist records with the nearest ZIP codes
- Jennifer Beckel, CRMPortland, OR 972321851835672
- Janelle BelloPortland, OR 972321952923047
- Jeanne BohenekPortland, OR 972321508305251
- Cynthia CascantePortland, OR 972321750945259
- Michael De HartPortland, OR 972321639791817
- Rebekka KrusePortland, OR 972321760004949
- Anita LovingPortland, OR 972321609230168
- Fernando Moreno, CRMPortland, OR 972321811559453
Common questions
What is William Leissner, PSS's NPI number?
William Leissner, PSS's National Provider Identifier (NPI) is 1205287026, issued on Jun 22, 2016. An NPI identifies a provider in billing; it is not a license.
Where is William Leissner, PSS located?
The NPPES record lists a practice address at 30 NE Mlk, Portland, OR, 97232. Phone: (503) 232-1099. Providers update this record themselves, so call before visiting.
How can I verify William Leissner, PSS's license?
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.