DR. GARY MICHAEL SAMPSON PHD
NPI 1225149032
Psychologist in Longview, WA

Active since August 31, 2006PECOS Enrolled
945 11TH AVENUE, LONGVIEW, WA 98632(888) 313-8600(360) 636-7372 Get Directions Write a Review

NPPES record last updated: November 17, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Gary Michael Sampson Phd NPPES

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

DR. GARY MICHAEL SAMPSON PHD (NPI 1225149032) is an individual psychologist in Longview, Washington, licensed in Washington (1269) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1981).

NPPES Registry Identity

NPI1225149032
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. GARY MICHAEL SAMPSONCredential: PHD
Location Address945 11TH AVENUELongview, WA 98632
Mailing Address945 11th AvenueLongview, WA 98632 · (888) 313-8600 · Fax (360) 636-7372
Fax(360) 636-7372
Sole ProprietorNo
Medical School CMSOtherGraduated 1981
Enumeration DateAugust 31, 2006
Last NPPES UpdateNovember 17, 2011
✔ NPI 1225149032 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 · 1269
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.
945 11TH AVENUE, Longview, WA 98632

Other Identifiers 1

Medicare ID-Type UnspecifiedAB09108WA

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gary Michael Sampson Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4183882202
PECOS Enrollment IDI20120221000718
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.

Medicare Billing Reassignment

Medicare enrollment records show Gary Sampson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Clinical Neuropsychologist
945 11TH AVE, SUITE B
Longview, WA 98632
  • Reassigned Medicare billing, Washington enrollment
  • 14 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Gary Sampson's NPI number?

The NPI number for Gary Sampson is 1225149032. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Where is Gary Sampson located?

Gary Sampson practices at 945 11th Avenue, Longview, WA 98632. The listed phone number is (888) 313-8600.

What is Gary Sampson's specialty?

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

Is Gary Sampson enrolled in Medicare?

Yes. Gary Sampson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gary Sampson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gary Sampson reassigns Medicare benefits to Northwest Psychological Resources LLC (Longview, WA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gary Sampson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gary Sampson accept?

Health plans from Ambetter Health, Kaiser Permanente, Moda Health Plan, Inc., PacificSource Health Plans and Premera Blue Cross Blue Shield of Alaska and 1 other insurer list Gary Sampson 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 Gary Sampson was last updated on November 17, 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.