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DR. WILLIAM THOMAS GIBSON NP, PHD
NPI 1467408815
Nurse Practitioner - Psychiatric/Mental Health in Pullman, WA

Active since May 26, 2006PECOS Enrolled
1125 SE WASHINGTON ST., PULLMAN, WA 99111(509) 335-3575(509) 336-7389 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 7, 2023, May 27, 2020, Jul 18, 2017 and 1 more (4 updates tracked since 2017).

About Dr. William Thomas Gibson Np, Phd NPPES

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

DR. WILLIAM THOMAS GIBSON NP, PHD (NPI 1467408815) is an individual psychiatric/mental health provider in Pullman, Washington, licensed in Washington (AP30005329) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1467408815
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameDR. WILLIAM THOMAS GIBSONCredential: NP, PHD
Location Address1125 SE WASHINGTON ST.Pullman, WA 99111
Mailing Address1125 Se Washington St.Pullman, WA 99111 · (509) 335-3575 · Fax (509) 336-7389
Phone(509) 335-3575
Fax(509) 336-7389
Sole ProprietorNo
Enumeration DateMay 26, 2006
Last NPPES UpdateMarch 7, 20234 updates tracked since enumeration
NPPES CertifiedMay 27, 2020
✔ NPI 1467408815 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
Licenses✔ Licensed in WA · AP30005329✔ Licensed in ID · CNS-11A
Also ListedPsychologistTaxonomy 103T00000X · License AP30005329 (WA), PY12342713
Also ListedPsychologist · Cognitive & BehavioralTaxonomy 103TB0200X · License PY00002713 (WA)
1125 SE WASHINGTON ST., Pullman, WA 99111
Open in Google Maps ↗

Other Identifiers 3

OtherCNS-11AID · Idaho State License
OtherRN00132277WA · Wa License
OtherAP30005329WA · Wa License

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William Thomas Gibson Np, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 William Gibson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Public Hospital District No 3 Of Whitman County
14 mi
Critical Access
1200 W FAIRVIEW RD
Colfax, WA 99111
  • Reassigned Medicare billing, Washington enrollment
  • 85 clinicians in this Medicare group
NPI 1922009448 (509) 397-3435

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99111 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$88.29 typical visit price
range $57.27 – $172.80
Typical copayment $22.07 (range $14.31 – $43.20)
Most-billed visit code 99203
Established Patient
$100.78 typical visit price
range $18.56 – $141.11
Typical copayment $25.19 (range $4.64 – $35.27)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 William Gibson's NPI number?

The NPI number for William Gibson is 1467408815. It was assigned to this individual provider in the NPPES registry on May 26, 2006.

Where is William Gibson located?

William Gibson practices at 1125 SE Washington St., Pullman, WA 99111. The listed phone number is (509) 335-3575.

What is William Gibson's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is William Gibson enrolled in Medicare?

Yes. William Gibson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for William Gibson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Gibson reassigns Medicare benefits to Public Hospital District No 3 Of Whitman County (Colfax, 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 William Gibson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for William Gibson was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.