Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Emily Sierra Greathouse, RDH

Dental Hygienist in Ferndale, WA · enumerated 2026.

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

National Provider Identifier

1861311342

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Registry record

Entity type Individual (Type 1)

Name Emily Sierra Greathouse

Credential RDH

Sex Female

Practice address 6060 Portal Way, Ferndale, WA, 98248

Phone (360) 676-6177

Fax (360) 671-3574

Enumeration date Jul 10, 2026

Last updated in NPPES Jul 14, 2026

Taxonomy & licenses

124Q00000X Dental Hygienist Dental Providers · License DEHY.DH.70146018 (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 Emily Greathouse?

The National Provider Identifier (NPI) for Emily Greathouse is 1861311342, a Type 1 (individual) record in the CMS NPPES registry.

Where does Emily Greathouse practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-14.