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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

REBECCA BATON WILLIAMS PHD
NPI 1831871235
Psychologist - Clinical in Seattle, WA

Active since August 04, 2023PECOS Enrolled
908 JEFFERSON ST, SEATTLE, WA 98104(206) 744-5114 Get Directions Write a Review

NPPES record last updated: September 3, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

About Rebecca Baton Williams Phd NPPES

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

REBECCA BATON WILLIAMS PHD (NPI 1831871235) is an individual clinical provider in Seattle, Washington, licensed in Washington (PSYC.PY.70025502) and active in the NPI registry since August 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1831871235
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameREBECCA BATON WILLIAMSCredential: PHD
Location Address908 JEFFERSON STSeattle, WA 98104-2433
Mailing AddressPo Box 50095Seattle, WA 98145-5095 · (206) 520-5700
Phone(206) 744-5114
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateAugust 4, 2023
Last NPPES UpdateSeptember 3, 2026
NPPES CertifiedSeptember 3, 2026
✔ NPI 1831871235 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in WA · PSYC.PY.70025502
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
908 JEFFERSON ST, Seattle, WA 98104
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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)

Rebecca Baton Williams Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2163989591
PECOS Enrollment IDI20260805004931
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 98104 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
$189.37 typical visit price
range $63.67 – $189.37
Typical copayment $47.34 (range $15.91 – $47.34)
Most-billed visit code 99205
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.

TOI ROBINSON
Physical Therapy Assistant
908 JEFFERSON ST
SEATTLE, WA 98104
King County (206) 744-1675
JOANNE C. WEN M.D.
Ophthalmology
908 JEFFERSON ST
SEATTLE, WA 98104
King County (206) 543-7250
CLAIRE T ANGEL D.O.
Optometrist
908 JEFFERSON ST, SUITE 101
SEATTLE, WA 98104
King County (206) 897-4774
STANLEY A HERRING
Physical Medicine & Rehabilitation
908 JEFFERSON ST
SEATTLE, WA 98104
King County (206) 744-0401
JOAN R HENDRICKS MD
Orthopaedic Surgery
908 JEFFERSON ST
SEATTLE, WA 98104
King County (206) 744-4830
ANDREW LIN KO MD
Neurological Surgery
908 JEFFERSON ST
SEATTLE, WA 98104
King County (206) 744-9300
SAAD ELRAHMANY MBBCH
Orthopaedic Surgery (Orthopaedic Surgery of the Spine)
908 JEFFERSON ST
SEATTLE, WA 98104
King County (206) 744-9340
HARBORVIEW MEDICAL CENTER
Eyewear Supplier
908 JEFFERSON ST, SUITE 101
SEATTLE, WA 98104
King County (206) 897-4774

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 Rebecca Williams's NPI number?

The NPI number for Rebecca Williams is 1831871235. It was assigned to this individual provider in the NPPES registry on August 4, 2023.

Where is Rebecca Williams located?

Rebecca Williams practices at 908 Jefferson St, Seattle, WA 98104. The listed phone number is (206) 744-5114.

What is Rebecca Williams's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Rebecca Williams enrolled in Medicare?

Yes. Rebecca Williams is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Rebecca Williams was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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.