Oregon Oncology Specialists in McMinnville

In McMinnville, we are located in the H.R. Hoover Cancer Center behind the Willamette Valley Medical Center. Dr. Catherine O’Brien and Dr. Nicholas Barber have offices at this location.


  • Phone: 503-435-6590
  • Fax: 503-435-6591
  • Provider hours: 8:00 a.m. – Noon, and 1:00 p.m. – 5:00 p.m.; Monday through Friday
  • Treatment hours: 8:00 a.m. – 5:00 p.m.; Monday through Friday
  • After hours phone: 503-561-6444

After hours and during lunchtime, calls will be directed to our answering service. A provider is on call 24 hours a day, seven days a week.


2700 SE Stratus Avenue: Suite A
McMinnville, OR 97128

Get directions in Google Maps »


Visiting our Office

Creating a healthy and safe environment is important to us. If you are experiencing any cold or flu symptoms while visiting the clinic, we recommend the use of hand sanitizer and a mask to help protect others.


Physicians and APPs with offices at this location