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

Ms. Aletha Marcelle O'Neall

Mental Health Counselor in Arlington, WA · enumerated 2008.

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

National Provider Identifier

1942466891

Verified

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Registry record

Entity type Individual (Type 1)

Name Ms. Aletha Marcelle O'Neall

Sex Female

Practice address Arlington, WA, 98223

Phone (360) 435-7365

Enumeration date Jul 30, 2008

Last updated in NPPES Jul 30, 2008

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

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Aletha O'Neall practice?

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

What is the NPI number for Aletha O'Neall?

The National Provider Identifier (NPI) for Aletha O'Neall is 1942466891, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-30.