Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Lee Clark, CRM, THW, CADC-R

Mental Health Counselor in Portland, OR · enumerated 2024 · practices at Outreach Pdx LLC.

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

National Provider Identifier

1629810171

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Registry record

Entity type Individual (Type 1)

Name William Lee Clark

Credential CRM, THW, CADC-R

Sex Male

Practice address 17518 Se River Rd, Portland, OR, 97267

Phone (971) 990-7628

Enumeration date Jun 6, 2024

Last updated in NPPES Aug 20, 2025

Taxonomy & licenses

101YM0800X Mental Health Counselor 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 William Clark practice?

The practice location on file with NPPES is in Portland, OR. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for William Clark?

The National Provider Identifier (NPI) for William Clark is 1629810171, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Outreach Pdx LLC Case Management Agency · Portland, OR NPI 1417832296

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-20.