Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Catherine Anne O'Brien, MD

Individual provider Hematology & Oncology Physician · NPI 1417994047

Dr. Catherine Anne O'Brien, MD is a Hematology/Oncology in McMinnville, Oregon. Graduated from University of California, Davis School of Medicine in 2000, 26 years ago. Practices with Oregon Oncology Specialists LLP, a 40-clinician group and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
26
Trained at
University of California, Davis School of Medicine
Licensed in
OR
In the registry since
2006
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

2700 SE Stratus Ave Ste A
McMinnville, OR 97128
Phone: (503) 435-6590
Fax: (503) 435-6591
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence MD25920 (OR)

Record details

NPI number1417994047
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 1, 2006
Last updated in NPPESJuly 8, 2021
Certification dateJuly 8, 2021

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, DAVIS SCHOOL OF MEDICINE
Graduated 2000 (26 years in practice)
Group practice Oregon Oncology Specialists Llp — 40 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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