Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Jo Jahn

Speech-Language Pathologist in Mount Vernon, WA · enumerated 2017 · practices at Skagit Preschool Association and Resource Center.

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

National Provider Identifier

1760917314

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Registry record

Entity type Individual (Type 1)

Name Mary Jo Jahn

Sex Female

Practice address 320 Pacific Pl, Mount Vernon, WA, 98273

Phone (360) 416-7570

Fax (360) 416-7580

Enumeration date Apr 20, 2017

Last updated in NPPES Sep 11, 2024

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 28912 (CA) Secondary

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 2016036320 (MO) Secondary

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License LL61365064 (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 specialty is Mary Jo Jahn?

Mary Jo Jahn is registered in NPPES with the primary taxonomy of Speech-Language Pathologist. 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 2024-09-11.