NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Sam Zwerling

Clinical Social Worker in West Linn, OR · enumerated 2018.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1316420177

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Registry record

Entity type Individual (Type 1)
Name Sam Zwerling
Sex Male
Practice address West Linn, OR, 97068
Phone (971) 378-0367
Enumeration date Sep 7, 2018
Last updated in NPPES Sep 9, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Sam Zwerling practice?
The practice location on file with NPPES is in West Linn, OR. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sam Zwerling?
The National Provider Identifier (NPI) for Sam Zwerling is 1316420177, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-09-09.