DR. KATHARINE DADERKO
NPI 1558767855
Psychologist in Seattle, WA

Active since November 13, 2014Opted out of Medicare · through Aug 1, 2027
7222 LINDEN AVE N APT A, SEATTLE, WA 98103(206) 395-6405 Get Directions Write a Review

NPPES record last updated: April 30, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Katharine Daderko NPPES

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

DR. KATHARINE DADERKO (NPI 1558767855) is an individual psychologist in Seattle, Washington and active in the NPI registry since November 2014. She has opted out of Medicare through August 1, 2027.

NPPES Registry Identity

NPI1558767855
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. KATHARINE DADERKO
Location Address7222 LINDEN AVE N APT ASeattle, WA 98103-5177
Mailing Address7222 Linden Ave N Apt ASeattle, WA 98103-5177 · (206) 395-6405
Sole ProprietorYes
Enumeration DateNovember 13, 2014
Last NPPES UpdateApril 30, 2026
NPPES CertifiedApril 30, 2026
NPI 1558767855 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
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.
7222 LINDEN AVE N APT A, Seattle, WA 98103

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Opted out of Medicare

Dr. Katharine Daderko has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from August 1, 2021 through August 1, 2027.

Opt-Out Effective DateAugust 1, 2021
Opt-Out In Effect ThroughAugust 1, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Clinic/Center (Adolescent and Children Mental Health)
7222 LINDEN AVE N APT A
SEATTLE, WA 98103
Clinic/Center (Adolescent and Children Mental Health)
7222 LINDEN AVE N APT A
SEATTLE, WA 98103
Psychologist (Clinical)
7222 LINDEN AVE N APT A
SEATTLE, WA 98103
Psychologist (Clinical)
7222 LINDEN AVE N APT A
SEATTLE, WA 98103
Psychologist (Clinical Child & Adolescent)
7222 LINDEN AVE N APT A
SEATTLE, WA 98103

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 Katharine Daderko's NPI number?

The NPI number for Katharine Daderko is 1558767855. It was assigned to this individual provider in the NPPES registry on November 13, 2014.

Where is Katharine Daderko located?

Katharine Daderko practices at 7222 Linden Ave N Apt A, Seattle, WA 98103. The listed phone number is (206) 395-6405.

What is Katharine Daderko's specialty?

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

Is Katharine Daderko enrolled in Medicare?

No. Katharine Daderko has opted out of Medicare through August 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

What insurance does Katharine Daderko accept?

Health plans from Premera Blue Cross Blue Shield of Alaska list Katharine Daderko 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 Katharine Daderko was last updated on April 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.