DR. WILLIAM WANZOR MD
NPI 1235823634
Emergency Medicine in Ellensburg, WA
About Dr. William Wanzor Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM WANZOR MD (NPI 1235823634) is an individual emergency medicine provider in Ellensburg, Washington, licensed in Washington (MD70082793) and active in the NPI registry since June 2023. He is enrolled in Medicare PECOS, is affiliated with Yakima Valley Memorial, and maintains a secondary practice location in Lubbock.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. William Wanzor Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show William Wanzor reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ellensburg, WA 98926
- Reassigned Medicare billing, Washington enrollment
- 163 clinicians in this Medicare group
Yakima, WA 98902
- Reassigned Medicare billing, Washington enrollment
- 565 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Yakima Valley Memorial
Acute Care Hospitals · Yakima, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98926 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
ELLENSBURG, WA 98926
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 William Wanzor's NPI number?
The NPI number for William Wanzor is 1235823634. It was assigned to this individual provider in the NPPES registry on June 7, 2023.
Where is William Wanzor located?
William Wanzor practices at 603 S Chestnut St, Ellensburg, WA 98926. The listed phone number is (509) 933-8693.
What is William Wanzor's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is William Wanzor enrolled in Medicare?
Yes. William Wanzor is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for William Wanzor's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Wanzor reassigns Medicare benefits to 2 organizations: Kittitas County Public Hospital Dist 1 (Ellensburg, WA) and Yakima Valley Memorial Physicians (Yakima, WA). Each 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 William Wanzor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Wanzor accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list William Wanzor 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.
Is William Wanzor affiliated with any hospitals?
According to CMS data, William Wanzor is affiliated with Yakima Valley Memorial.
When was this NPI record last updated?
The NPPES record for William Wanzor was last updated on July 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. William Wanzor, MD · NPI 1235823634
Emergency Medicine physician in Ellensburg, Washington. Individual provider, active in the CMS NPPES registry since June 7, 2023.
## Identity
- **NPI:** 1235823634 (Entity type: Individual)
- **Enumerated:** June 7, 2023
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD70082793 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 603 S CHESTNUT ST, Ellensburg, WA 98926-3875
- **Phone:** (509) 933-8693
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Kittitas County Public Hospital Dist 1 (NPI 1003016825, Ellensburg, WA); Yakima Valley Memorial Physicians (NPI 1154015592, Yakima, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** July 15, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1235823634) · Data from the CMS NPPES public registry.