DR. ELLEN MCMAHON PSYD
NPI 1841828449
Psychologist in Kirkland, WA

Active since March 30, 2020PECOS EnrolledAccepts Medicare Assignment
120 7TH AVE S, KIRKLAND, WA 98033(562) 373-5536 Get Directions Write a Review

NPPES record last updated: August 6, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 6, 2025, Mar 30, 2020 (2 updates tracked since 2020).

About Dr. Ellen Mcmahon Psyd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ELLEN MCMAHON PSYD (NPI 1841828449) is an individual psychologist in Kirkland, Washington, licensed in Washington (PY60987304) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1841828449
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. ELLEN MCMAHONCredential: PSYD
Location Address120 7TH AVE SKirkland, WA 98033-6522
Mailing Address120 7th Ave SKirkland, WA 98033-6522 · (425) 202-7954
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateMarch 30, 2020
Last NPPES UpdateAugust 6, 20252 updates tracked since enumeration
NPPES CertifiedAugust 6, 2025
NPI 1841828449 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in WA · PY60987304
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
120 7TH AVE S, Kirkland, WA 98033

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Ellen Mcmahon Psyd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5193147858
PECOS Enrollment IDI20200706000772
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ellen Mcmahon's NPI number?

The NPI number for Ellen Mcmahon is 1841828449. It was assigned to this individual provider in the NPPES registry on March 30, 2020.

Where is Ellen Mcmahon located?

Ellen Mcmahon practices at 120 7th Ave S, Kirkland, WA 98033. The listed phone number is (562) 373-5536.

What is Ellen Mcmahon's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Ellen Mcmahon enrolled in Medicare?

Yes. Ellen Mcmahon is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Ellen Mcmahon accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Ellen Mcmahon as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ellen Mcmahon was last updated on August 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.