Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Margaret L Larson Arnp Pllc

Q: What is the NPI number for Margaret L Larson Arnp Pllc?

The NPI for Margaret L Larson Arnp Pllc is 1013227792, a Type 2 (organization) record in the CMS NPPES registry.

Family Medicine Physician in Burien, WA · enumerated 2010 · authorized official Margaret Larson, Owner.

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

National Provider Identifier

1013227792

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Registry record

Entity type Organization (Type 2)

Legal business name Margaret L Larson Arnp Pllc

Practice address 16233 Sylvester Rd Sw, Suite G30, Burien, WA, 98166

Phone (206) 244-5477

Enumeration date Oct 15, 2010

Last updated in NPPES May 12, 2014

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Margaret Larson

Title Owner

Phone (206) 244-5477

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 Margaret L Larson Arnp Pllc?

The NPI for Margaret L Larson Arnp Pllc is 1013227792, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Margaret L Larson Arnp Pllc?

NPPES lists Margaret Larson (Owner) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-12.