Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Chelsea Jo Hemmenway, CN

Nutritionist in Seattle, WA · enumerated 2020.

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

National Provider Identifier

1124651252

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Registry record

Entity type Individual (Type 1)

Name Chelsea Jo Hemmenway

Credential CN

Sex Female

Practice address 4500 9th Ave Ne Ste 300, Seattle, WA, 98105

Phone (206) 853-0534

Enumeration date Feb 18, 2020

Last updated in NPPES Feb 21, 2024

Taxonomy & licenses

133N00000X Nutritionist Dietary & Nutritional Service Providers · License 60695408 (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 Chelsea Hemmenway?

The National Provider Identifier (NPI) for Chelsea Hemmenway is 1124651252, a Type 1 (individual) record in the CMS NPPES registry.

Where does Chelsea Hemmenway practice?

The practice location on file with NPPES is in Seattle, 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 2024-02-21.