TREDWAY SPINE INSTITUTE
NPI 1699140426
Specialist in Seattle, WA
About Tredway Spine Institute NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TREDWAY SPINE INSTITUTE (NPI 1699140426) is a healthcare organization registered as a specialist in Seattle, Washington and active in the NPI registry since December 2015. The organization lists Trent L Tredway, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
Group Practice 1
Accepted 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)
Tredway Spine Institute is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to Tredway Spine Institute, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.
Clinicians, nearest first (2)
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 Trent L Tredway MD's NPI number?
The NPI number for Trent L Tredway MD is 1699140426. It was assigned to this organization in the NPPES registry on December 4, 2015. The provider is doing business as Tredway Spine Institute.
Where is Trent L Tredway MD located?
Trent L Tredway MD is located at 901 Boren Ave Ste 600, Seattle, WA 98104. The listed phone number is (206) 799-2132.
What is Trent L Tredway MD's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Trent L Tredway MD enrolled in Medicare?
Yes. Trent L Tredway MD is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Trent L Tredway MD?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Trent L Tredway MD, in Neurosurgery and Nurse Practitioner. 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, 2 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Trent L Tredway MD accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Trent L Tredway MD 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 Trent L Tredway MD was last updated on January 24, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Tredway Spine Institute · NPI 1699140426
Specialist organization in Seattle, Washington. Organization record, active in the CMS NPPES registry since December 4, 2015.
## Identity
- **NPI:** 1699140426 (Entity type: Organization)
- **Enumerated:** December 4, 2015
- **Primary specialty:** Specialist · taxonomy 174400000X
- **Legal business name:** Trent L Tredway Md
- **Organization subpart:** No
- **Authorized official:** Trent Tredway, OWNER
## Practice location
- **Address:** 901 BOREN AVE STE 600, Seattle, WA 98104-3596
- **Phone:** (206) 799-2132
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Neurosurgery (1), Nurse Practitioner (1); 2 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 24, 2016
- **Other identifiers:** Medicare UPIN G8921432 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1699140426) · Data from the CMS NPPES public registry.