Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ginger M Mastor, MSW

Social Worker in Dayton, WA · enumerated 2011.

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

National Provider Identifier

1285919332

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Registry record

Entity type Individual (Type 1)

Name Ginger M Mastor

Credential MSW

Sex Female

Practice address 221 E Washington Ave, Dayton, WA, 99328

Phone (509) 382-1164

Fax (509) 382-1166

Enumeration date Oct 19, 2011

Last updated in NPPES Oct 19, 2011

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License CG60117501 (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.

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Frequently asked questions

What specialty is Ginger Mastor?

Ginger Mastor is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-19.