MARGARET K ARMSTRONG OTD, OTR/L
NPI 1750026803
Occupational Therapist in Portland, OR
About Margaret K Armstrong Otd, Otr/l NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET K ARMSTRONG OTD, OTR/L (NPI 1750026803) is an individual occupational therapist in Portland, Oregon, licensed in Oregon (450605) and active in the NPI registry since May 2022. She maintains a secondary practice location in Hillsboro.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Margaret K Armstrong Otd, Otr/l is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Margaret Armstrong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Portland, OR 97225
- Reassigned Medicare billing, Oregon enrollment
- 1,501 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.
PORTLAND, OR 97225
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 Margaret Armstrong's NPI number?
The NPI number for Margaret Armstrong is 1750026803. It was assigned to this individual provider in the NPPES registry on May 3, 2022. The provider is also known as Maggie Armstrong.
Where is Margaret Armstrong located?
Margaret Armstrong practices at 9135 SW Barnes Rd Ste 561, Portland, OR 97225. The listed phone number is (503) 216-2339.
What is Margaret Armstrong's specialty?
The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.
Is Margaret Armstrong enrolled in Medicare?
Yes. Margaret Armstrong is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Margaret Armstrong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Armstrong reassigns Medicare benefits to Providence Health & Services - Oregon (Portland, 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 Margaret Armstrong'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 Margaret Armstrong was last updated on September 30, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.