Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Catherine Son, MD

Family Medicine Physician in Federal Way, WA · enumerated 2020.

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

National Provider Identifier

1801424726

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Registry record

Entity type Individual (Type 1)

Name Catherine Son

Credential MD

Sex Female

Practice address 33431 13th Pl S, Federal Way, WA, 98003

Phone (253) 874-7634

Fax (253) 874-7635

Enumeration date Mar 27, 2020

Last updated in NPPES Jan 17, 2025

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD61323141 (WA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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 is the NPI number for Catherine Son?

The National Provider Identifier (NPI) for Catherine Son is 1801424726, a Type 1 (individual) record in the CMS NPPES registry.

Where does Catherine Son practice?

The practice location on file with NPPES is in Federal Way, 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 2025-01-17.