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WILLIAM O WALKER
NPI 1801977152
Pediatrics - Neurodevelopmental Disabilities in Seattle, WA

Active since October 17, 2006PECOS Enrolled
4800 SAND POINT WAY NE, SEATTLE, WA 98105(206) 987-2000 Get Directions Write a Review

NPPES record last updated: October 25, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About William O Walker NPPES

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

WILLIAM O WALKER (NPI 1801977152) is an individual neurodevelopmental disabilities provider in Seattle, Washington, licensed in Washington (MD00035691) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1801977152
Entity TypeIndividualMale
Primary Taxonomy2080P0008X
Provider Legal NameWILLIAM O WALKER
Location Address4800 SAND POINT WAY NESeattle, WA 98105-3901
Mailing Address4500 Sand Point Way Ne, #100Seattle, WA 98105-3900
Phone(206) 987-2000
Sole ProprietorNo
Enumeration DateOctober 17, 2006
Last NPPES UpdateOctober 25, 2021
NPPES CertifiedOctober 25, 2021
✔ NPI 1801977152 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neurodevelopmental DisabilitiesAllopathic & Osteopathic Physicians
Taxonomy Code2080P0008X
License✔ Licensed in WA · MD00035691
Definition
A pediatrician who specializes in the treatment of individuals with developmental delays and learning disorders associated with cerebral palsy, spina bifida, autism, and other chronic neurologic conditions.
4800 SAND POINT WAY NE, Seattle, WA 98105
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Other Identifiers 2

Other179020Internal Id-motor Vehicle Id
Medicaid8228223WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William O Walker 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.

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.

NALINI MALARKKAN MD
Anesthesiology
4800 SAND POINT WAY NE
SEATTLE, WA 98105
King County (206) 987-2728
MS. LINDA E EBLEN MA
Speech-Language Pathologist
4800 SAND POINT WAY NE, MAIL STOP W-6839
SEATTLE, WA 98105
King County (206) 987-6164
DR. JAMES TOLIVER BENNETT JR. M.D., PH.D.
Medical Genetics (Clinical Molecular Genetics)
4800 SAND POINT WAY NE, GENETIC MEDICINE
SEATTLE, WA 98105
King County (206) 987-2056
DR. LESLIE ANN DERVAN MD
Pediatrics (Pediatric Critical Care Medicine)
4800 SAND POINT WAY NE, MB.10.620
SEATTLE, WA 98105
King County (206) 987-0293
DR. INDI TREHAN MD
Pediatrics (Pediatric Infectious Diseases)
4800 SAND POINT WAY NE
SEATTLE, WA 98105
King County (206) 987-2000
MS. JENNIFER PATANO CNP
Nurse Practitioner (Pediatrics)
4800 SAND POINT WAY NE, MS O.7.720
SEATTLE, WA 98105
King County (206) 987-8949
MRS. SUSAN L HOLTZCLAW ARNP
Nurse Practitioner (Family)
4800 SAND POINT WAY NE, MAILSTOP T-2108
SEATTLE, WA 98105
King County (206) 987-5691
SHENG ZHOU MD
Otolaryngology (Pediatric Otolaryngology)
4800 SAND POINT WAY NE
SEATTLE, WA 98105
King County (206) 987-2105

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 William Walker's NPI number?

The NPI number for William Walker is 1801977152. It was assigned to this individual provider in the NPPES registry on October 17, 2006.

Where is William Walker located?

William Walker practices at 4800 Sand Point Way NE, Seattle, WA 98105. The listed phone number is (206) 987-2000.

What is William Walker's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neurodevelopmental Disabilities, with taxonomy code 2080P0008X.

Is William Walker enrolled in Medicare?

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

What insurance does William Walker accept?

Health plans from Premera Blue Cross Blue Shield of Alaska list William Walker as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Walker was last updated on October 25, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.