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O'NEILL CHIROPRACTIC
NPI 1912197203
Clinic/Center - Health Service in Seattle, WA

Active since August 01, 2007
203 14TH AVE E, SEATTLE, WA 98112(206) 381-3473(206) 388-0913 Get Directions Write a Review

NPPES record last updated: May 8, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About O'neill Chiropractic NPPES

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

O'NEILL CHIROPRACTIC (NPI 1912197203) is a healthcare organization registered as a health service in Seattle, Washington and active in the NPI registry since August 2007. The organization lists Anh Thu Hoang Nguyen, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1912197203
Entity TypeOrganization
Primary Taxonomy261QH0100X
Legal Business NameBACKFIRE INC P S
Location Address203 14TH AVE ESeattle, WA 98112-5223
Mailing Address203 14th Ave ESeattle, WA 98112-5223 · (206) 323-2225 · Fax (206) 388-0913
Phone(206) 381-3473
Fax(206) 388-0913
Organization SubpartNo
Authorized OfficialAnh Thu Hoang NguyenOffice Manager · (253) 293-2444
Enumeration DateAugust 1, 2007
Last NPPES UpdateMay 8, 2024
NPPES CertifiedMay 8, 2024
✔ NPI 1912197203 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyClinic/Center · Health ServiceAmbulatory Health Care Facilities
Taxonomy Code261QH0100X
License✔ Licensed in WA · CH00002928
Also ListedChiropractorTaxonomy 111N00000X
203 14TH AVE E, Seattle, WA 98112
Open in Google Maps ↗

Other Names 1

Doing Business AsO'neill Chiropractic

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

O'neill Chiropractic is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to O'neill Chiropractic, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Michael Pirak, D.C.
Chiropractic
NPI 1710438262
417 E PINE ST STE P
Seattle, WA 98122
(206) 851-2242
✔ Accepts Medicare0.6 mi
Patrick Gorrell, DC
Chiropractic
NPI 1457864969
619 SW 152ND ST
Burien, WA 98166
(206) 242-0998
✔ Accepts Medicare11 mi

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

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 Backfire Inc P S's NPI number?

The NPI number for Backfire Inc P S is 1912197203. It was assigned to this organization in the NPPES registry on August 1, 2007. The provider is doing business as O'neill Chiropractic.

Where is Backfire Inc P S located?

Backfire Inc P S is located at 203 14th Ave E, Seattle, WA 98112. The listed phone number is (206) 381-3473.

What is Backfire Inc P S's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Health Service, with taxonomy code 261QH0100X.

Is Backfire Inc P S enrolled in Medicare?

Yes. Backfire Inc P S is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Backfire Inc P S?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Chiropractic, reassign their Medicare billing to Backfire Inc P S. A 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 the clinician's services. Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Backfire Inc P S accept?

Health plans from Ambetter Health and Premera Blue Cross Blue Shield of Alaska list Backfire Inc P S 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 Backfire Inc P S was last updated on May 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.