Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Cornelia Withington, MD

Individual provider Internal Medicine Physician · NPI 1255642328

Cornelia Withington, MD practises Anesthesiology in Portland, Oregon. Graduated from University of Massachusetts Medical School in 2010, 16 years ago. Practices with Oregon Anesthesiology Group PC, a 233-clinician group and accepts Medicare assignment. Licensed in Massachusetts and Oregon.

Years since qualifying
16
Trained at
University of Massachusetts Medical School
Licensed in
MA, OR
In the registry since
2010
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

707 SW Washington St Ste 700
Portland, OR 97205-3536
Phone: (503) 299-9906
Fax: (503) 225-9002
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence MD169063 (OR)
Internal Medicine Physician Taxonomy 207R00000X · Licence 244959 (MA)

Record details

NPI number1255642328
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 23, 2010
Last updated in NPPESOctober 22, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2010 (16 years in practice)
Group practice Oregon Anesthesiology Group Pc — 233 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients55
Services billed 60 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Oregon Anesthesiology Group PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 233 clinicians in the practice; 12 are shown here.

Other providers in Portland