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MARY ELLEN WALKER MD
NPI 1003324393
Family Medicine in Vashon, WA

Active since January 20, 2018PECOS Enrolled
21405 MONUMENT RD SW, VASHON, WA 98070(206) 463-6300 Get Directions Write a Review

NPPES record last updated: January 20, 2018. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mary Ellen Walker Md NPPES

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

MARY ELLEN WALKER MD (NPI 1003324393) is an individual family medicine provider in Vashon, Washington, licensed in Washington (000020165) and active in the NPI registry since January 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003324393
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameMARY ELLEN WALKERCredential: MD
Location Address21405 MONUMENT RD SWVashon, WA 98070-0389
Mailing AddressPo Box 389Vashon, WA 98070-0389 · (206) 463-6300
Phone(206) 463-6300
Sole ProprietorYes
Enumeration DateJanuary 20, 2018
✔ NPI 1003324393 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in WA · 000020165
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
21405 MONUMENT RD SW, Vashon, WA 98070
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Ellen Walker Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98070 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.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Walker's NPI number?

The NPI number for Mary Walker is 1003324393. It was assigned to this individual provider in the NPPES registry on January 20, 2018.

Where is Mary Walker located?

Mary Walker practices at 21405 Monument Rd SW, Vashon, WA 98070. The listed phone number is (206) 463-6300.

What is Mary Walker's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Mary Walker enrolled in Medicare?

Yes. Mary Walker is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mary Walker was last updated on January 20, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.