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STEPHANIE WU M.D.
NPI 1770859100
Pediatrics in Seattle, WA

Active since March 29, 2012PECOS Enrolled
705 5TH AVE S, SEATTLE, WA 98104(224) 278-3000 Get Directions Write a Review

NPPES record last updated: June 13, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Stephanie Wu M.d. NPPES

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

STEPHANIE WU M.D. (NPI 1770859100) is an individual pediatrics provider in Seattle, Washington, licensed in Washington (MD60572156) and active in the NPI registry since March 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1770859100
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameSTEPHANIE WUCredential: M.D.
Location Address705 5TH AVE SSeattle, WA 98104-4425
Mailing Address705 5th Ave SSeattle, WA 98104-4425 · (224) 278-3000
Phone(224) 278-3000
Sole ProprietorNo
Enumeration DateMarch 29, 2012
Last NPPES UpdateJune 13, 2025
NPPES CertifiedJune 13, 2025
✔ NPI 1770859100 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in WA · MD60572156
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
705 5TH AVE S, Seattle, WA 98104
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Other Identifiers 1

Medicaid2047024WA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stephanie Wu 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 Billing Reassignment

Medicare enrollment records show Stephanie Wu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Optum Care Washington PLLC
26 mi
Multi-Specialty
3901 HOYT AVE
Everett, WA 98201
  • Reassigned Medicare billing, Washington enrollment
  • 1,285 clinicians in this Medicare group
NPI 1831186766 (425) 259-0966

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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
$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 Stephanie Wu's NPI number?

The NPI number for Stephanie Wu is 1770859100. It was assigned to this individual provider in the NPPES registry on March 29, 2012.

Where is Stephanie Wu located?

Stephanie Wu practices at 705 5th Ave S, Seattle, WA 98104. The listed phone number is (224) 278-3000.

What is Stephanie Wu's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Stephanie Wu enrolled in Medicare?

Yes. Stephanie Wu is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stephanie Wu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Wu reassigns Medicare benefits to Optum Care Washington PLLC (Everett, WA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stephanie Wu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Stephanie Wu was last updated on June 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.