Grant Ross Walker, DO
Family Medicine Physician · Longview, WA
Grant Ross Walker, DO is a family medicine physician with a practice address in Longview, Washington, and NPI 1285364265, issued on Jun 13, 2022. Check the license (Washington OP70005432, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Grant Ross Walker
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- OP70005432 WA
94-10996 KS
Self-reported in NPPES; status is on the state search - Practice location
- 1718 E Kessler Blvd, Longview, WA 98632
- Phone
- (360) 747-5800
- Enumerated
- Jun 13, 2022
- Record last updated
- Aug 20, 2025
- Fax
- (360) 575-3846
- Medicare enrollment
- Enrolled (PECOS I20250904002332); accepts Medicare assignment
- Medical or professional school
- Kansas City University Of Med & Biosciences, College Of Osteo Med, 2022
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 1718 E Kessler Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Melissa Bettes, ARNPNurse Practitioner1134464365
- Christine Bruce, ARNPFamily Nurse Practitioner1669007605
- Daniel Castenson, PAPhysician Assistant1760597496
- Brittany ConnellyPhysician Assistant1609527068
- James Crider, MDFamily Medicine Physician1669479689
- Jodi Donaldson, LICSWClinical Social Worker1609123413
Verify Grant Ross Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP70005432Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average family medicine physician in 2024
501 Medicare Part D claims for 77 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 44 claims were for opioids.
Most prescribed
- Atorvastatin Calcium42 claims
- Amlodipine Besylate21 claims
- Omeprazole20 claims
- Lisinopril15 claims
- Fluticasone Propionate14 claims
- Jardiance13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- PeacehealthLongview, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grant Ross Walker among 5,534 family medicine physician records in Washington
Grant Ross Walker, DO is one of 5,534 family medicine physician records with a practice address in Washington. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 94% of them.
- NPI issued2022 · 94% of these records are older, 3% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2022 · median 2009 among the 3,294 with a school on file
- Record last updated2025 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
56 family medicine physician records list a practice address in Longview
They are 56 of the 1,933 NPPES records with a practice address in Longview, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Longview → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Shawn Aaron, MDLongview, WA 986321578560710
- Michael Bartlett, MDLongview, WA 986321356348502
- John Boucher, M.D.Longview, WA 986321558374538
- Lance Brigman, M.D.Longview, WA 986321235131590
- Tresha Carroll, DOLongview, WA 986321932132552
- Po-Shen Chang, M.D.Longview, WA 986321609889062
- Gail Conway, DOLongview, WA 986321386669711
- James Crider, MDLongview, WA 986321669479689
Common questions
What is Grant Ross Walker, DO's NPI number?
Grant Ross Walker, DO's National Provider Identifier (NPI) is 1285364265, issued on Jun 13, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Grant Ross Walker, DO located?
The NPPES record lists a practice address at 1718 E Kessler Blvd, Longview, WA, 98632. Phone: (360) 747-5800. Providers update this record themselves, so call before visiting.
How can I verify Grant Ross Walker, DO's license?
NPPES lists Washington license number OP70005432, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Grant Ross Walker, DO prescribe under Medicare Part D?
In 2024, Grant Ross Walker, DO had 501 Medicare Part D claims for 77 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.