Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joan M Williamson, LPC

Professional Counselor in Salem, OR · enumerated 2006 · practices at Polk Yamhill & Marion Child Treatment Services Inc.

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

National Provider Identifier

1407947997

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Registry record

Entity type Individual (Type 1)

Name Joan M Williamson

Credential LPC

Sex Female

Practice address 965 Liberty St Se, Salem, OR, 97302

Phone (503) 588-2004

Fax (503) 588-2415

Enumeration date Sep 27, 2006

Last updated in NPPES Feb 15, 2025

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License C0982 (OR) Primary

LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1407947997 active?

Yes, as of the latest NPPES snapshot, NPI 1407947997 is active (record last updated 2025-02-15).

How do I verify Joan Williamson's NPI record?

Cross-check NPI 1407947997 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Mary Bonds Clinical Social Worker · Salem, OR NPI 1962424424 Molly Dinsdale Professional Counselor · Salem, OR NPI 1437166568 Taranum Chaudry Marriage & Family Therapist · Salem, OR NPI 1346357142 David Dougher Mental Health Counselor · Salem, OR NPI 1750431441 Gloria Hall Counselor · Salem, OR NPI 1902022395 Polk Yamhill & Marion Child Treatment Services Inc Counselor · Salem, OR NPI 1760685176 Rebecca Frey Marriage & Family Therapist · Salem, OR NPI 1326243205 Xan Decambra Marriage & Family Therapist · Salem, OR NPI 1891066346

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-15.