OLATUNDUN OLADAYO WILLIAMS M.D.
NPI 1598082174
Pediatrics - Pediatric Hematology-Oncology in Seattle, WA

Q: What is Olatundun Williams's NPI number?

The NPI number for Olatundun Williams is 1598082174. It was assigned to this individual provider in the NPPES registry on April 22, 2010.

Q: What is Olatundun Williams's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Active since April 22, 2010PECOS Enrolled

100/100

CMS Quality Rating

825 EASTLAKE AVE E, SEATTLE, WA 98109(206) 520-5000 Get Directions Write a Review

NPPES record last updated: January 29, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Olatundun Oladayo Williams M.d. NPPES

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

OLATUNDUN OLADAYO WILLIAMS M.D. (NPI 1598082174) is an individual pediatric hematology-oncology provider in Seattle, Washington, licensed in Washington (MD61622255) and active in the NPI registry since April 2010. She is enrolled in Medicare PECOS and maintains a secondary practice location in New York.

NPPES Registry Identity

NPI1598082174

Entity TypeIndividualFemale

Primary Taxonomy2080P0207X

Provider Legal NameOLATUNDUN OLADAYO WILLIAMSCredential: M.D.

Location Address825 EASTLAKE AVE ESeattle, WA 98109-4405

Mailing AddressPo Box 50095Seattle, WA 98145-5095 · (206) 520-5700

Phone(206) 520-5000

Sole ProprietorNo

Enumeration DateApril 22, 2010

Last NPPES UpdateJanuary 29, 2025

NPPES CertifiedJanuary 29, 2025

✔ NPI 1598082174 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2080P0207X

Licenses✔ Licensed in WA · MD61622255✔ Licensed in IL · 036.133875✔ Licensed in NY · 314573

Definition

A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.

825 EASTLAKE AVE E, Seattle, WA 98109

Open in Google Maps ↗

Secondary Practice Location 1

Location 13959 BroadwayNew York, NY 10032-1559 · Phone (212) 305-5437

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.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)

Olatundun Oladayo Williams M.d. 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

86.8

Promoting Interoperability

100

Improvement Activities

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.

SANDHYA RAMANATHAN PANCH M.D.

Internal Medicine (Hematology)