DR. PATRICK D. DEMARS MD
NPI 1235123753
Anesthesiology in Spokane, WA
About Dr. Patrick D. Demars Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PATRICK D. DEMARS MD (NPI 1235123753) is an individual anesthesiology provider in Spokane, Washington, licensed in Washington (MD60198039) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Patrick D. Demars Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Patrick Demars reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Spokane, WA 99204
- Reassigned Medicare billing, Washington enrollment
- 10 clinicians in this Medicare group
Richland, WA 99352
- Reassigned Medicare billing, Washington enrollment
- 172 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.
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 Patrick Demars's NPI number?
The NPI number for Patrick Demars is 1235123753. It was assigned to this individual provider in the NPPES registry on September 12, 2005.
Where is Patrick Demars located?
Patrick Demars practices at 2008 S Manito Pl, Spokane, WA 99203. The listed phone number is (509) 413-2117.
What is Patrick Demars's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Patrick Demars enrolled in Medicare?
Yes. Patrick Demars is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Patrick Demars's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Patrick Demars reassigns Medicare benefits to 2 organizations: Shriners Hospitals For Children (Spokane, WA) and Premier Anesthesia Of Richland A Division Of Premier Anesthesia, LLC (Richland, 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 Patrick Demars'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 Patrick Demars was last updated on December 16, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.