NPPES file of Aug 9, 2026

Donald William Walker, MBA, FNP-C, GNP

Family Nurse Practitioner · Brookings, OR

Donald William Walker, MBA, FNP-C, GNP is a family nurse practitioner with a practice address in Brookings, Oregon, and NPI 1730256926, issued on Nov 30, 2006. Check the license (Oregon 200850025NP, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1730256926
Name
Donald William Walker
Credential
MBA, FNP-C, GNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
200850025NP OR
Self-reported in NPPES; status is on the state search
Practice location
500 5TH St, Brookings, OR 97415
Phone
(541) 412-2000
Enumerated
Nov 30, 2006
Record last updated
May 7, 2024
Fax
(541) 412-2081
Medicaid ID
500646940 OR
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 500 5TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bridget Allison, OTR/LOccupational Therapist1831974179
  2. Kalani Baker, PAPhysician Assistant1598775173
  3. Steven Brantingham, DPMFoot & Ankle Surgery Podiatrist1689195505
  4. Carley Cantwell, LCSWClinical Social Worker1356675060
  5. Arman Carrasco, PA-CPhysician Assistant1336986876
  6. Howard Croy, P.A.Physician Assistant1295745875

Verify Donald William Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license 200850025NP
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Oregon license search

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3.3 times the Medicare Part D claims of the average family nurse practitioner in 2024

4,366 Medicare Part D claims for 422 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 296 claims were for opioids.

  1. Donald Walker4,366
  2. Specialty average1,305

Most prescribed

  1. Losartan Potassium179 claims
  2. Levothyroxine Sodium171 claims
  3. Amlodipine Besylate153 claims
  4. Lisinopril132 claims
  5. Atorvastatin Calcium126 claims
  6. Gabapentin126 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.

Donald William Walker among 2,384 family nurse practitioner records in Oregon

Donald William Walker, MBA, FNP-C, GNP is one of 2,384 family nurse practitioner records with a practice address in Oregon. 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 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 80% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2024 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 family nurse practitioner records list a practice address in Brookings

They are 13 of the 310 NPPES records with a practice address in Brookings, and 2,384 family nurse practitioner records in Oregon.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Linda Almeida, NPBrookings, OR 974151831110428
  2. Jennifer Boyle, FNPBrookings, OR 974151508802802
  3. Kelly Clayton, FNPBrookings, OR 974151396744769
  4. Tracey Kather, NPBrookings, OR 974151861538274
  5. Cheryl Malo-Clines, NPBrookings, OR 974151790994697
  6. Madeline MartincicBrookings, OR 974151700708450
  7. Marissa McGhee, FNP-CBrookings, OR 974151770060527
  8. Jackie Michael-Havens, NPBrookings, OR 974151548701600

Common questions

What is Donald William Walker, MBA, FNP-C, GNP's NPI number?

Donald William Walker, MBA, FNP-C, GNP's National Provider Identifier (NPI) is 1730256926, issued on Nov 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Donald William Walker, MBA, FNP-C, GNP located?

The NPPES record lists a practice address at 500 5TH St, Brookings, OR, 97415. Phone: (541) 412-2000. Providers update this record themselves, so call before visiting.

How can I verify Donald William Walker, MBA, FNP-C, GNP's license?

NPPES lists Oregon license number 200850025NP, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

How much does Donald William Walker, MBA, FNP-C, GNP prescribe under Medicare Part D?

In 2024, Donald William Walker, MBA, FNP-C, GNP had 4,366 Medicare Part D claims for 422 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.