MARGARET MARY O'REILLY MD
NPI 1255349718
Obstetrics & Gynecology in Portland, OR
About Margaret Mary O'reilly Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET MARY O'REILLY MD (NPI 1255349718) is an individual obstetrics & gynecology provider in Portland, Oregon, licensed in Oregon (MD20578) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Margaret Mary O'reilly Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Margaret O'reilly reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97239
- Reassigned Medicare billing, Oregon enrollment
- 2,212 clinicians in this Medicare group
Hillsboro, OR 97123
- Reassigned Medicare billing, Oregon enrollment
- 691 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 97239 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
PORTLAND, OR 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
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 O'reilly's NPI number?
The NPI number for Margaret O'reilly is 1255349718. It was assigned to this individual provider in the NPPES registry on August 3, 2006.
Where is Margaret O'reilly located?
Margaret O'reilly practices at 3181 SW Sam Jackson Park Rd, Portland, OR 97239. The listed phone number is (503) 494-4500.
What is Margaret O'reilly's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Margaret O'reilly enrolled in Medicare?
Yes. Margaret O'reilly is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Margaret O'reilly's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret O'reilly reassigns Medicare benefits to 2 organizations: University Professional Services (Portland, OR) and Tuality Medical Group LLC (Hillsboro, 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 O'reilly's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Margaret O'reilly accept?
Health plans from Moda Health Plan, Inc., PacificSource Health Plans and Providence Health Plan list Margaret O'reilly 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.
When was this NPI record last updated?
The NPPES record for Margaret O'reilly was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Margaret Mary O'reilly, MD · NPI 1255349718
Obstetrics & Gynecology physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since August 3, 2006.
## Identity
- **NPI:** 1255349718 (Entity type: Individual)
- **Enumerated:** August 3, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** MD20578 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 3181 SW SAM JACKSON PARK RD, Portland, OR 97239-3011
- **Phone:** (503) 494-4500
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): University Professional Services (NPI 1376709535, Portland, OR); Tuality Medical Group LLC (NPI 1639690704, Hillsboro, OR) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN H05876; Medicaid 181959 (OR)
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Source: [NPI Profile](https://npiprofile.com/npi/1255349718) · Data from the CMS NPPES public registry.