DR. GARY DOUGLAS GRIDLEY M.D.
NPI 1336120260
Anesthesiology in Cottonwood, AZ
About Dr. Gary Douglas Gridley M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GARY DOUGLAS GRIDLEY M.D. (NPI 1336120260) is an individual anesthesiology provider in Cottonwood, Arizona, licensed in Arizona (30200) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Gary Douglas Gridley M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Gary Gridley reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tacoma, WA 98405
- Reassigned Medicare billing, Washington enrollment
- 152 clinicians in this Medicare group
Elma, WA 98541
- Reassigned Medicare billing, Washington enrollment
- 190 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.
Areas of Expertise CMS Part B claims 8
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
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 Gary Gridley's NPI number?
The NPI number for Gary Gridley is 1336120260. It was assigned to this individual provider in the NPPES registry on November 8, 2005.
Where is Gary Gridley located?
Gary Gridley practices at 269 S Candy Ln, Cottonwood, AZ 86326. The listed phone number is (928) 639-6150.
What is Gary Gridley's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Gary Gridley enrolled in Medicare?
Yes. Gary Gridley is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Gary Gridley's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gary Gridley reassigns Medicare benefits to 2 organizations: Pacific Anesthesia PC (Tacoma, WA) and Grays Harbor Community Hospital (Elma, 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 Gary Gridley'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 Gary Gridley was last updated on October 18, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.