MARGARET R PATTISON MD
NPI 1346455524
Emergency Medicine in Eugene, OR
About Margaret R Pattison Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET R PATTISON MD (NPI 1346455524) is an individual emergency medicine provider in Eugene, Oregon, licensed in Oregon (MD28638) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS and maintains a secondary practice location in Albany.
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 R Pattison Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Margaret Pattison reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Eugene, OR 97401
- Reassigned Medicare billing, Oregon enrollment
- 58 clinicians in this Medicare group
Cottage Grove, OR 97424
- Reassigned Medicare billing, Oregon enrollment
- 113 clinicians in this Medicare group
Florence, OR 97439
- Reassigned Medicare billing, Oregon enrollment
- 117 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 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97401 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
EUGENE, OR 97401
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 Pattison's NPI number?
The NPI number for Margaret Pattison is 1346455524. It was assigned to this individual provider in the NPPES registry on May 11, 2007. The provider is also known as Margaret R Cronholm M.D..
Where is Margaret Pattison located?
Margaret Pattison practices at 1255 Hilyard St, Eugene, OR 97401. The listed phone number is (541) 344-8757.
What is Margaret Pattison's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Margaret Pattison enrolled in Medicare?
Yes. Margaret Pattison is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Margaret Pattison's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Pattison reassigns Medicare benefits to 3 organizations: Eugene Emergency Physicians PC (Eugene, OR), Peacehealth (Cottage Grove, OR) and Peacehealth (Florence, OR). 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 Margaret Pattison'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 Pattison was last updated on February 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# Margaret R Pattison, MD · NPI 1346455524
Emergency Medicine physician in Eugene, Oregon. Individual provider, active in the CMS NPPES registry since May 11, 2007.
## Identity
- **NPI:** 1346455524 (Entity type: Individual)
- **Enumerated:** May 11, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD28638 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 1255 HILYARD ST, Eugene, OR 97401-3718
- **Phone:** (541) 344-8757
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Eugene Emergency Physicians PC (NPI 1831133677, Eugene, OR); Peacehealth (NPI 1902892391, Cottage Grove, OR); Peacehealth (NPI 1578552402, Florence, OR) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 21, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1346455524) · Data from the CMS NPPES public registry.