DR. MARY KATHRYN HAMILTON PH. D.
NPI 1902871320
Psychologist in Tacoma, WA

Active since February 20, 2006Opted out of Medicare · through Apr 1, 2028
4041 RUSTON WAY STE 202, TACOMA, WA 98402(253) 566-2851(253) 761-3288 Get Directions Write a Review

NPPES record last updated: November 2, 2011. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Mary Kathryn Hamilton Ph. D. NPPES

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

DR. MARY KATHRYN HAMILTON PH. D. (NPI 1902871320) is an individual psychologist in Tacoma, Washington, licensed in Washington (PSY 1179) and active in the NPI registry since February 2006. She has opted out of Medicare through April 1, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1902871320
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. MARY KATHRYN HAMILTONCredential: PH. D.
Location Address4041 RUSTON WAY STE 202Tacoma, WA 98402-5300
Mailing Address4041 Ruston Way Ste 202Tacoma, WA 98402-5300 · (253) 566-2851 · Fax (253) 761-3288
Fax(253) 761-3288
Sole ProprietorYes
Enumeration DateFebruary 20, 2006
Last NPPES UpdateNovember 2, 2011
NPI 1902871320 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 · PSY 1179
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.
4041 RUSTON WAY STE 202, Tacoma, WA 98402

Other Identifiers 2

Medicaid7078058WA
Medicare ID-Type UnspecifiedG001002428WA

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. Mary Kathryn Hamilton Ph. D. 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 April 1, 2016 through April 1, 2028.

Opt-Out Effective DateApril 1, 2016
Opt-Out In Effect ThroughApril 1, 2028Opt-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.

Counselor (Mental Health)
4041 RUSTON WAY STE 202
TACOMA, WA 98402
Clinic/Center (Medical Specialty)
4041 RUSTON WAY STE 202
TACOMA, WA 98402
Marriage & Family Therapist
4041 RUSTON WAY STE 202
TACOMA, WA 98402
Psychiatry & Neurology (Psychiatry)
4041 RUSTON WAY STE 202
TACOMA, WA 98402
Psychiatry & Neurology (Psychiatry)
4041 RUSTON WAY STE 202
TACOMA, WA 98402

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 Mary Hamilton's NPI number?

The NPI number for Mary Hamilton is 1902871320. It was assigned to this individual provider in the NPPES registry on February 20, 2006.

Where is Mary Hamilton located?

Mary Hamilton practices at 4041 Ruston Way Ste 202, Tacoma, WA 98402. The listed phone number is (253) 566-2851.

What is Mary Hamilton's specialty?

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

Is Mary Hamilton enrolled in Medicare?

No. Mary Hamilton has opted out of Medicare through April 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

What insurance does Mary Hamilton accept?

Health plans from PacificSource Health Plans list Mary Hamilton 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 Mary Hamilton was last updated on November 2, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.