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

Ruth Birnbaum, MSW, LICSW

Mental Health Counselor in Seattle, WA · enumerated 2006.

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

National Provider Identifier

1871654780

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Registry record

Entity type Individual (Type 1)

Name Ruth Birnbaum

Credential MSW, LICSW

Sex Female

Practice address Seattle, WA, 98122

Phone (206) 302-2200

Fax (206) 302-2210

Enumeration date Dec 13, 2006

Last updated in NPPES Jul 8, 2007

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 · License LW00005029 (WA) 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

What is the NPI number for Ruth Birnbaum?

The National Provider Identifier (NPI) for Ruth Birnbaum is 1871654780, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ruth Birnbaum practice?

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

Other providers at this practice address

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Vasant Halarnakar Psychiatry Physician · Seattle, WA NPI 1124093372 John Olson Addiction Medicine (Family Medicine) Physician · Seattle, WA NPI 1679512487 Kelly Bliss Psychiatric/Mental Health Nurse Practitioner · Seattle, WA NPI 1295812477 Paul Zarkowski Psychiatry Physician · Seattle, WA NPI 1417036179 Seven Dunsmore Mental Health Counselor · Seattle, WA NPI 1942361829 Arden James Addiction (Substance Use Disorder) Counselor · Seattle, WA NPI 1457412363 Milena Stott Clinical Social Worker · Seattle, WA NPI 1487715223 Jason Czeskleba Mental Health Counselor · Seattle, WA NPI 1124189956

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.