JAMES MAXSON
NPI 1437382140
Psychologist in Yakima, WA

Active since August 27, 2009PECOS EnrolledAccepts Medicare Assignment
307 S 12TH AVE STE 4B, YAKIMA, WA 98902(509) 575-8457(509) 453-1273 Get Directions Write a Review

NPPES record last updated: November 30, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 22, 2021, Aug 3, 2018 (2 updates tracked since 2018).

About James Maxson NPPES

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

JAMES MAXSON (NPI 1437382140) is an individual psychologist in Yakima, Washington, licensed in Washington (PY60860492) and active in the NPI registry since August 2009. He is enrolled in Medicare PECOS and is a graduate of Other (2012).

NPPES Registry Identity

NPI1437382140
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameJAMES MAXSON
Location Address307 S 12TH AVE STE 4BYakima, WA 98902-3137
Mailing Address307 S 12th Ave Ste 4bYakima, WA 98902-3137 · (509) 575-8457 · Fax (509) 453-1273
Fax(509) 453-1273
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateAugust 27, 2009
Last NPPES UpdateNovember 30, 20232 updates tracked since enumeration
NPPES CertifiedNovember 30, 2023
✔ NPI 1437382140 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in WA · PY60860492
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.
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 1465 (MT)
307 S 12TH AVE STE 4B, Yakima, WA 98902

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

James Maxson 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 ID4284984253
PECOS Enrollment IDI20180912002904, I20231229002806
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 James Maxson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Federally Qualified Health Center (FQHC)
314 S 11TH AVE
Yakima, WA 98902
  • Reassigned Medicare billing, Washington enrollment
  • 252 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.

Other Providers at the Same Location NPPES 20

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

Clinic/Center (Rehabilitation, Substance Use Disorder)
307 S 12TH AVE STE 4B
YAKIMA, WA 98902
Case Manager/Care Coordinator
307 S 12TH AVE STE 4B
YAKIMA, WA 98902
Counselor (Addiction (Substance Use Disorder))
307 S 12TH AVE STE 4B
YAKIMA, WA 98902
Counselor
307 S 12TH AVE STE 4B
YAKIMA, WA 98902
Counselor (Mental Health)
307 S 12TH AVE STE 4B
YAKIMA, WA 98902
Counselor (Mental Health)
307 S 12TH AVE STE 4B
YAKIMA, WA 98902
Psychiatry & Neurology (Child & Adolescent Psychiatry)
307 S 12TH AVE STE 4B
YAKIMA, WA 98902
Counselor (Mental Health)
307 S 12TH AVE STE 4B
YAKIMA, WA 98902

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 James Maxson's NPI number?

The NPI number for James Maxson is 1437382140. It was assigned to this individual provider in the NPPES registry on August 27, 2009.

Where is James Maxson located?

James Maxson practices at 307 S 12th Ave Ste 4B, Yakima, WA 98902. The listed phone number is (509) 575-8457.

What is James Maxson's specialty?

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

Is James Maxson enrolled in Medicare?

Yes. James Maxson 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.

Which organization bills Medicare for James Maxson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Maxson reassigns Medicare benefits to Yakima Valley Farm Workers Clinic (Yakima, 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 James Maxson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does James Maxson accept?

Health plans from Ambetter Health and Moda Health Plan, Inc. list James Maxson 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 James Maxson was last updated on November 30, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.