Darrelle D. Walker, ARNP, FNP-C
Family Nurse Practitioner · Olympia, WA
Darrelle D. Walker, ARNP, FNP-C is a family nurse practitioner with a practice address in Olympia, Washington, and NPI 1740059187, issued on Dec 27, 2023. Check the license (Washington ARNP.AP.61517314-NP, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Darrelle D. Walker
- Credential
- ARNP, FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- ARNP.AP.61517314-NP WA
Self-reported in NPPES; status is on the state search - Practice location
- 209 Lilly RD NE Ste B, Olympia, WA 98506
- Phone
- (360) 413-8250
- Enumerated
- Dec 27, 2023
- Record last updated
- Mar 26, 2024
- Fax
- (360) 413-8830
- Medicare enrollment
- Enrolled (PECOS I20240409004058); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 3,781 in Washington → Look up another NPI →
Also registered at 209 Lilly RD NE Ste B
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Yiting LiGastroenterology Physician1912486408
- Mallory Mumma, ARNPGerontology Nurse Practitioner1801783402
Verify Darrelle D. Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license ARNP.AP.61517314-NPCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average family nurse practitioner in 2024
285 Medicare Part D claims for 111 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Omeprazole58 claims
- Pantoprazole Sodium51 claims
- Gavilyte-G31 claims
- Peg-3350 And Electrolytes27 claims
- Famotidine25 claims
- Ondansetron Odt14 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.
Industry payments in 2024: $78.94
1 payment: food and beverage; the largest payer was Madrigal Pharmaceuticals. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Puget Sound Gastroenterology PLLCOlympia, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Darrelle D. Walker among 3,781 family nurse practitioner records in Washington
Darrelle D. Walker, ARNP, FNP-C is one of 3,781 family nurse practitioner records with a practice address in Washington. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 83% of them.
- NPI issued2023 · 83% of these records are older, 10% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2023 · median 2018 among the 2,116 with a school on file
- 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
93 family nurse practitioner records list a practice address in Olympia
They are 93 of the 5,034 NPPES records with a practice address in Olympia, and 3,781 family nurse practitioner records in Washington.
All 3,781 in Washington → Every provider in Olympia → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Rebecca Bodle-Shingu, ARNPOlympia, WA 985061558362368
- Heidi Bray, ARNPOlympia, WA 985061366492241
- Shana Charles, ARNPOlympia, WA 985061437179546
- Julie Dybbro, ARNPOlympia, WA 985061124006150
- Robin Ellingson-Miller, ARNPOlympia, WA 985061851313134
- Suzanne Goldman, APRNOlympia, WA 985061396821310
- Terra Grandmason, ARNPOlympia, WA 985061235328501
- Kathryn Harshman, ARNPOlympia, WA 985061952537706
Common questions
What is Darrelle D. Walker, ARNP, FNP-C's NPI number?
Darrelle D. Walker, ARNP, FNP-C's National Provider Identifier (NPI) is 1740059187, issued on Dec 27, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Darrelle D. Walker, ARNP, FNP-C located?
The NPPES record lists a practice address at 209 Lilly RD NE Ste B, Olympia, WA, 98506. Phone: (360) 413-8250. Providers update this record themselves, so call before visiting.
How can I verify Darrelle D. Walker, ARNP, FNP-C's license?
NPPES lists Washington license number ARNP.AP.61517314-NP, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Darrelle D. Walker, ARNP, FNP-C prescribe under Medicare Part D?
In 2024, Darrelle D. Walker, ARNP, FNP-C had 285 Medicare Part D claims for 111 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.