HILARY M WALKER ARNP
NPI 1790195832
Nurse Practitioner in Federal Way, WA

Q: What is Hilary Walker's NPI number?

The NPI number for Hilary Walker is 1790195832. It was assigned to this individual provider in the NPPES registry on April 29, 2014. The provider is also known as Hilary Otorowski Arnp.

Q: What is Hilary Walker's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Hilary Walker was last updated on November 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 29, 2014PECOS EnrolledAccepts Medicare Assignment

33501 1ST WAY S, FEDERAL WAY, WA 98003(253) 838-2400(253) 874-1782 Get Directions Write a Review

NPPES record last updated: November 3, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 3, 2025, Jun 22, 2021, May 10, 2018 (3 updates tracked since 2018).

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About Hilary M Walker Arnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HILARY M WALKER ARNP (NPI 1790195832) is an individual nurse practitioner in Federal Way, Washington, licensed in Washington (AP6046253) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS, is affiliated with Virginia Mason Medical Center, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1790195832

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameHILARY M WALKERCredential: ARNP

Location Address33501 1ST WAY SFederal Way, WA 98003-6208

Mailing AddressPo Box 741515Los Angeles, CA 90074-1515 · (253) 838-2400 · Fax (253) 874-1782

Phone(253) 838-2400

Fax(253) 874-1782

Sole ProprietorNo

Medical School CMSOtherGraduated 2014

Enumeration DateApril 29, 2014

Last NPPES UpdateNovember 3, 20253 updates tracked since enumeration

NPPES CertifiedNovember 3, 2025

✔ NPI 1790195832 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in WA · AP6046253

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

33501 1ST WAY S, Federal Way, WA 98003

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Other Names 1

Former Name (1)Hilary Otorowski Arnp

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

Hilary M Walker Arnp 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.

PECOS PAC ID7214152180

PECOS Enrollment IDI20140709000916

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

26 services20 patients

Telephone medical discussion with physician, 5-10 minutes 99441

A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.

12 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Virginia Mason Medical Center

Acute Care Hospitals · Seattle, WA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number500005

Location925 Seneca StSeattle, WA 98101 · King County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98003 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$97.43 typical visit price

range $63.67 – $189.37

Typical copayment $24.35 (range $15.91 – $47.34)

Most-billed visit code 99203

Established Patient

$111.00 typical visit price

range $21.12 – $155.00

Typical copayment $27.75 (range $5.28 – $38.75)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

THOMAS M LANDINO DPM, FACFAS, PT

Podiatrist