Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Plymouth Housing Group

Case Management Agency in Seattle, WA · enumerated 2018 · authorized official Kelli Larsen, Chief Program Officer.

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

National Provider Identifier

1427530302

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Registry record

Entity type Organization (Type 2)

Legal business name Plymouth Housing Group

Practice address 2113 3rd Ave, Seattle, WA, 98121

Phone (206) 374-9409

Enumeration date Sep 6, 2018

Last updated in NPPES Dec 2, 2019

Taxonomy & classification

171M00000X Case Manager/Care Coordinator Other Service Providers Secondary

251B00000X Case Management Agency Agencies Primary

Authorized official

Name Kelli Larsen

Title Chief Program Officer

Phone (206) 374-9409

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

Where is Plymouth Housing Group located?

The practice location on file with NPPES is in Seattle, WA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2019-12-02. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-12-02.