CORNELIA WITHINGTON M.D.
NPI 1255642328
Anesthesiology in Portland, OR
About Cornelia Withington M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CORNELIA WITHINGTON M.D. (NPI 1255642328) is an individual anesthesiology provider in Portland, Oregon, licensed in Oregon (MD169063) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS, is affiliated with Legacy Good Samaritan Medical Center, and is a graduate of University Of Massachusetts Medical School (2010).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
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
Cornelia Withington 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 Cornelia Withington reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Portland, OR 97205
- Reassigned Medicare billing, Oregon enrollment
- 271 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
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.
Legacy Good Samaritan Medical Center
Acute Care Hospitals · Portland, ORLegacy Mount Hood Medical Center
Acute Care Hospitals · Gresham, OROther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Cornelia Withington's NPI number?
The NPI number for Cornelia Withington is 1255642328. It was assigned to this individual provider in the NPPES registry on June 23, 2010.
Where is Cornelia Withington located?
Cornelia Withington practices at 707 SW Washington St Suite 700, Portland, OR 97205. The listed phone number is (503) 299-9906.
What is Cornelia Withington's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Cornelia Withington enrolled in Medicare?
Yes. Cornelia Withington 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 Cornelia Withington's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cornelia Withington reassigns Medicare benefits to Oregon Anesthesiology Group PC (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 Cornelia Withington's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Cornelia Withington affiliated with any hospitals?
According to CMS data, Cornelia Withington is affiliated with Legacy Good Samaritan Medical Center and Legacy Mount Hood Medical Center.
When was this NPI record last updated?
The NPPES record for Cornelia Withington was last updated on October 22, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Cornelia Withington, M.D. · NPI 1255642328
Anesthesiology physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since June 23, 2010.
## Identity
- **NPI:** 1255642328 (Entity type: Individual)
- **Enumerated:** June 23, 2010
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD169063 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 707 SW WASHINGTON ST, SUITE 700, Portland, OR 97205-3536
- **Phone:** (503) 299-9906 · **Fax:** (503) 225-9002
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Oregon Anesthesiology Group PC (NPI 1477527786, Portland, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Massachusetts Medical School, class of 2010
## Record status
- **NPPES last updated:** October 22, 2018
- **Other identifiers:** Medicaid 500676764 (OR); Medicaid 500654906 (OR)
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Source: [NPI Profile](https://npiprofile.com/npi/1255642328) · Data from the CMS NPPES public registry.