DR. MARK NELSON MARGOLES MS
NPI 1871645093
Family Medicine in Keizer, OR
About Dr. Mark Nelson Margoles Ms NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK NELSON MARGOLES MS (NPI 1871645093) is an individual family medicine provider in Keizer, Oregon, licensed in Oregon (MD21443) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Mark Nelson Margoles Ms is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mark Margoles reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Salem, OR 97317
- Reassigned Medicare billing, Oregon and Washington enrollments
- Medicare enrollment name: Kaiser Foundation Health Plan Of The Northwest
- Also billed through NPI 1871848457 (Washington)
- 3,207 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97303 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 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KEIZER, OR 97303
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 Mark Margoles's NPI number?
The NPI number for Mark Margoles is 1871645093. It was assigned to this individual provider in the NPPES registry on January 17, 2007.
Where is Mark Margoles located?
Mark Margoles practices at 5940 Ulali Dr NE, Keizer, OR 97303. The listed phone number is (800) 813-2000.
What is Mark Margoles's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Mark Margoles enrolled in Medicare?
Yes. Mark Margoles is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mark Margoles's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Margoles reassigns Medicare benefits to South Salem Rehabilitation, LLC (Salem, OR). 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 Mark Margoles'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 Mark Margoles was last updated on October 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.