DR. GRANT ROSS WALKER DO
NPI 1285364265
Family Medicine in Longview, WA
About Dr. Grant Ross Walker Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GRANT ROSS WALKER DO (NPI 1285364265) is an individual family medicine provider in Longview, Washington, licensed in Washington (OP70005432) and active in the NPI registry since June 2022. He is enrolled in Medicare PECOS, is affiliated with Peacehealth St John Medical Center, and maintains a secondary practice location in Wichita.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Grant Ross Walker Do 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Peacehealth St John Medical Center
Acute Care Hospitals · Longview, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98632 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Grant Walker's NPI number?
The NPI number for Grant Walker is 1285364265. It was assigned to this individual provider in the NPPES registry on June 13, 2022.
Where is Grant Walker located?
Grant Walker practices at 1718 E Kessler Blvd, Longview, WA 98632. The listed phone number is (360) 747-5800.
What is Grant Walker's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Grant Walker enrolled in Medicare?
Yes. Grant Walker 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.
What insurance does Grant Walker accept?
Health plans from Moda Health Plan, Inc., Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Grant Walker 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.
Is Grant Walker affiliated with any hospitals?
According to CMS data, Grant Walker is affiliated with Peacehealth St John Medical Center.
When was this NPI record last updated?
The NPPES record for Grant Walker was last updated on August 20, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.
