GLYN E.A. MARSH M.D.
NPI 1316031255
Physical Medicine & Rehabilitation in Walla Walla, WA
About Glyn E.a. Marsh M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GLYN E.A. MARSH M.D. (NPI 1316031255) is an individual physical medicine & rehabilitation provider in Walla Walla, Washington, licensed in Washington (MD00046815) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Providence St Mary Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 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 and accepts Medicare assignment
Glyn E.a. Marsh M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Glyn Marsh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Walla Walla, WA 99362
- Reassigned Medicare billing, Washington enrollment
- 276 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 13
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Providence St Mary Medical Center
Acute Care Hospitals · Walla Walla, WADayton General Hospital
Critical Access Hospitals · Dayton, WAOther Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WALLA WALLA, WA 99362
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 Glyn Marsh's NPI number?
The NPI number for Glyn Marsh is 1316031255. It was assigned to this individual provider in the NPPES registry on October 3, 2006.
Where is Glyn Marsh located?
Glyn Marsh practices at 301 W Poplar St Ste 220, Walla Walla, WA 99362. The listed phone number is (509) 897-8959.
What is Glyn Marsh's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is Glyn Marsh enrolled in Medicare?
Yes. Glyn Marsh is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Glyn Marsh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Glyn Marsh reassigns Medicare benefits to Providence Health & Services - Washington (Walla Walla, 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 Glyn Marsh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Glyn Marsh accept?
Health plans from Ambetter Health, Moda Health Plan, Inc. and Premera Blue Cross Blue Shield of Alaska list Glyn Marsh 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 Glyn Marsh affiliated with any hospitals?
According to CMS data, Glyn Marsh is affiliated with Providence St Mary Medical Center and Dayton General Hospital.
When was this NPI record last updated?
The NPPES record for Glyn Marsh was last updated on June 17, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.