NPPES file of Aug 9, 2026

Hilary M. Walker, ARNP

Nurse Practitioner · Federal Way, WA

Hilary M. Walker, ARNP is a nurse practitioner with a practice address in Federal Way, Washington, and NPI 1790195832, issued on Apr 29, 2014. Check the license (Washington AP6046253, as entered in NPPES) with the Washington 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
1790195832
Name
Hilary M. Walker
Credential
ARNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
AP6046253 WA
Self-reported in NPPES; status is on the state search
Practice location
33501 1St Way S, Federal Way, WA 98003
Phone
(253) 838-2400
Enumerated
Apr 29, 2014
Record last updated
Nov 3, 2025
Fax
(253) 874-1782
Medicare enrollment
Enrolled (PECOS I20140709000916); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 33501 1St Way S

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

  1. Sarah Al Taii, MDInternal Medicine Physician1316514102
  2. Alexandra Alfieri, AUDAudiologist1831919174
  3. Midhat Aljic, PAPhysician Assistant1851638407
  4. Jon Almquist, MDPediatric Adolescent Medicine Physician1770512881
  5. Laura Anderson, DPTPhysical Therapist1265897797
  6. Lauren Athay, M.D.Pediatrics Physician1750550638

Verify Hilary M. Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license AP6046253
    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 Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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19% fewer Medicare Part D claims than the average nurse practitioner in 2024

903 Medicare Part D claims for 342 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 49 claims were for opioids.

  1. Hilary Walker903
  2. Specialty average1,109

Most prescribed

  1. Lisinopril37 claims
  2. Atorvastatin Calcium32 claims
  3. Trazodone Hcl31 claims
  4. Amlodipine Besylate29 claims
  5. Gabapentin27 claims
  6. Hydrocodone-Acetaminophen25 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.

2 hospitals and group practices

  1. Virginia Mason Medical CenterBainbridge Island, WA · Acute Care Hospitals5 of 5 stars
  2. Kaiser Foundation Health Plan OF WashingtonSilverdale, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Hilary M. Walker among 2,308 nurse practitioner records in Washington

Hilary M. Walker, ARNP is one of 2,308 nurse practitioner records with a practice address in Washington. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 42% of them.

  • NPI issued2014 · 42% of these records are older, 56% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2014 · median 2018 among the 1,301 with a school on file
  • Record last updated2025 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

38 nurse practitioner records list a practice address in Federal Way

They are 38 of the 2,770 NPPES records with a practice address in Federal Way, and 2,308 nurse practitioner records in Washington.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Joy Christoferson, MSN, ARNPFederal Way, WA 980031902977473
  2. Catherine Droege, ARNPFederal Way, WA 980031467479220
  3. Patricia Firth, ARNPFederal Way, WA 980031750430872
  4. Jennifer Kasselmann, FNPFederal Way, WA 980031649607425
  5. Brenda Lee, MSN ARNPFederal Way, WA 980031891781605
  6. Lori Macdonald, ARNPFederal Way, WA 980031376639484
  7. Monique McGaffeny, ARNPFederal Way, WA 980031245662907
  8. Anne Pettinger, ARNPFederal Way, WA 980031437245552

Common questions

What is Hilary M. Walker, ARNP's NPI number?

Hilary M. Walker, ARNP's National Provider Identifier (NPI) is 1790195832, issued on Apr 29, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Hilary M. Walker, ARNP located?

The NPPES record lists a practice address at 33501 1St Way S, Federal Way, WA, 98003. Phone: (253) 838-2400. Providers update this record themselves, so call before visiting.

How can I verify Hilary M. Walker, ARNP's license?

NPPES lists Washington license number AP6046253, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Hilary M. Walker, ARNP prescribe under Medicare Part D?

In 2024, Hilary M. Walker, ARNP had 903 Medicare Part D claims for 342 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.