Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ellen Mcmahon, PSYD
Psychologist in Kirkland, WA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1841828449
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Registry record
Entity type Individual (Type 1)
Name Dr. Ellen Mcmahon
Credential PSYD
Sex Female
Practice address 120 7th Ave S, Kirkland, WA, 98033
Phone (562) 373-5536
Enumeration date Mar 30, 2020
Last updated in NPPES Aug 6, 2025
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License PY60987304 (WA) Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice.
About the PSYD 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.
Frequently asked questions
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.
What specialty is Ellen Mcmahon?
Ellen Mcmahon is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-06.