HAYLEY COWAN
NPI 1275161101
Dentist in Seattle, WA

Q: What is Hayley Cowan's NPI number?

The NPI number for Hayley Cowan is 1275161101. It was assigned to this individual provider in the NPPES registry on March 27, 2020.

Q: What is Hayley Cowan's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Q: When was this NPI record last updated?

The NPPES record for Hayley Cowan was last updated on October 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.

Active since March 27, 2020PECOS Enrolled

1959 NE PACIFIC ST RM B316, SEATTLE, WA 98195(206) 543-5006 Get Directions Write a Review

NPPES record last updated: October 23, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 28, 2024, Mar 27, 2020 (2 updates tracked since 2020).

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About Hayley Cowan NPPES

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

HAYLEY COWAN (NPI 1275161101) is an individual dentist in Seattle, Washington, licensed in Washington (DE61049435) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1275161101

Entity TypeIndividualFemale

Primary Taxonomy122300000X

Provider Legal NameHAYLEY COWAN

Location Address1959 NE PACIFIC ST RM B316Seattle, WA 98195-6365

Mailing Address1959 Ne Pacific St Rm B307Seattle, WA 98195-6365 · (206) 543-5006

Phone(206) 543-5006

Sole ProprietorYes

Enumeration DateMarch 27, 2020

Last NPPES UpdateOctober 23, 20252 updates tracked since enumeration

NPPES CertifiedOctober 23, 2025

✔ NPI 1275161101 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDentistDental Providers

Taxonomy Code122300000X

License✔ Licensed in WA · DE61049435

Definition

A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.

Also ListedDentist · Oral and Maxillofacial RadiologyTaxonomy 1223X0008X · License DE61049435 (WA)

1959 NE PACIFIC ST RM B316, Seattle, WA 98195

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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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Hayley Cowan 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 Hayley Cowan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Uw School Of Dentistry

0.1 mi

Dentist

1959 NE PACIFIC ST, HEALTH SCIENCE BUILDING
Seattle, WA 98195

Reassigned Medicare billing, Washington enrollment
27 clinicians in this Medicare group

NPI 1972676971 (206) 616-6996

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 98195 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

$78.74 typical visit price

range $21.12 – $155.00

Typical copayment $19.68 (range $5.28 – $38.75)

Most-billed visit code 99213

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 Hayley Cowan's NPI number?

The NPI number for Hayley Cowan is 1275161101. It was assigned to this individual provider in the NPPES registry on March 27, 2020.

Where is Hayley Cowan located?

Hayley Cowan practices at 1959 NE Pacific St Rm B316, Seattle, WA 98195. The listed phone number is (206) 543-5006.

What is Hayley Cowan's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Is Hayley Cowan enrolled in Medicare?

Yes. Hayley Cowan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Hayley Cowan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hayley Cowan reassigns Medicare benefits to Uw School Of Dentistry (Seattle, 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 Hayley Cowan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Hayley Cowan accept?

Health plans from Premera Blue Cross Blue Shield of Alaska list Hayley Cowan 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 Hayley Cowan was last updated on October 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.