Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kenneth Duane Larson, R.PH.

Pharmacist in Ellensburg, WA · enumerated 2005.

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

National Provider Identifier

1629051974

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Kenneth Duane Larson

Credential R.PH.

Sex Male

Practice address 603 S Chestnut St, Ellensburg, WA, 98926

Phone (509) 962-7329

Fax (509) 962-7421

Enumeration date Nov 21, 2005

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License PH00010753 (WA) Primary

RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential

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 Kenneth Larson?

Kenneth Larson is registered in NPPES with the primary taxonomy of Pharmacist. 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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.