ELIOT GRIGG MD
NPI 1336331941
Anesthesiology in Seattle, WA
About Eliot Grigg Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELIOT GRIGG MD (NPI 1336331941) is an individual anesthesiology provider in Seattle, Washington, licensed in Washington (ML20008936) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Eliot Grigg Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Eliot Grigg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seattle, WA 98105
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: The Association Of Chrmc And University Physicians
- 1,443 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.
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.
SEATTLE, WA 98105
SEATTLE, WA 98105
SEATTLE, WA 98105
SEATTLE, WA 98105
SEATTLE, WA 98105
SEATTLE, WA 98105
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 Eliot Grigg's NPI number?
The NPI number for Eliot Grigg is 1336331941. It was assigned to this individual provider in the NPPES registry on August 16, 2007.
Where is Eliot Grigg located?
Eliot Grigg practices at 4800 Sand Point Way NE Ms 9824, Seattle, WA 98105. The listed phone number is (206) 987-2512.
What is Eliot Grigg's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Eliot Grigg enrolled in Medicare?
Yes. Eliot Grigg is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Eliot Grigg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eliot Grigg reassigns Medicare benefits to Association Of Chmc And University Physicians (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 Eliot Grigg'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 Eliot Grigg was last updated on August 27, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.