NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Francis Mcguigan, PHD

Psychologist in Mill Creek, WA · enumerated 2007 · practices at Optum Care Washington Pllc.

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

National Provider Identifier

1053461129

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. John Francis Mcguigan
Credential PHD
Sex Male
Practice address 3916 148th St Se, Mill Creek, WA, 98012
Phone (425) 339-5453
Fax (425) 304-1102
Enumeration date Jan 11, 2007
Last updated in NPPES Feb 25, 2019

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PY60048081 (WA) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier Type State Issuer
2006582 Medicaid WA -

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 does John Mcguigan practice?
The practice location on file with NPPES is in Mill Creek, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Mcguigan?
The National Provider Identifier (NPI) for John Mcguigan is 1053461129, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-25.