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WILLIAM LEISSNER PSS
NPI 1205287026
Peer Specialist in Portland, OR

Active since June 22, 2016

NPPES record last updated: May 22, 2020. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: May 22, 2020, May 5, 2020, Jun 22, 2016 (3 updates tracked since 2016).

About William Leissner Pss NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM LEISSNER PSS (NPI 1205287026) is an individual peer specialist in Portland, Oregon and active in the NPI registry since June 2016.

NPPES Registry Identity

NPI1205287026
Entity TypeIndividualMale
Primary Taxonomy175T00000X
Provider Legal NameWILLIAM LEISSNERCredential: PSS
Location Address30 NE MLKPortland, OR 97232-2941
Mailing Address30 Ne Mlk BlvdPortland, OR 97232-2941 · (503) 232-1099
Phone(503) 232-1099
Sole ProprietorNo
Enumeration DateJune 22, 2016
Last NPPES UpdateMay 22, 20203 updates tracked since enumeration
NPPES CertifiedMay 22, 2020
✔ NPI 1205287026 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPeer SpecialistOther Service Providers
Taxonomy Code175T00000X
Definition
Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.
30 NE MLK, Portland, OR 97232
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Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. SPENCER KEANE WINCHESTER RN
Nurse Practitioner (Psychiatric/Mental Health)
30 NE MLK
PORTLAND, OR 97232
Multnomah County (301) 639-8283
MR. BRIAN GARNER
Peer Specialist
30 NE MLK
PORTLAND, OR 97232
Multnomah County (503) 232-1099

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Leissner's NPI number?

The NPI number for William Leissner is 1205287026. It was assigned to this individual provider in the NPPES registry on June 22, 2016.

Where is William Leissner located?

William Leissner practices at 30 NE Mlk, Portland, OR 97232. The listed phone number is (503) 232-1099.

What is William Leissner's specialty?

The primary specialty registered for this NPI is Peer Specialist with taxonomy code 175T00000X.

When was this NPI record last updated?

The NPPES record for William Leissner was last updated on May 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.