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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (11)

The overall average patient rating of Dr. Oisin O'Neill is Good. Dr. O'Neill has been reviewed by 22 patients who have provided 11 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 3.7
Promptness 4.1
Courteous Staff 3.7
Accurate Diagnosis 4.5
Bedside Manner 4.3
Spends Time with Me 4.2
Follows Up After Visit 4.3

Specialties & Research

Dr. Oisin O'Neill, MD is board certified in Neurological Surgery.

  • He has special expertise in 4 areas:
  • Back Injuries
  • Head and Neck Disorder
  • Neurosurgery
  • Scoliosis

Education & Awards

Dr. O'Neill graduated from Royal College Of Surgeons In Ireland, Dublin. He has 4 awards.

Patients' Choice Award (2008 - 2009)
Top 10 Doctor - State (2014)
Neurological Surgeon
Top 10 Doctor - Metro Area (2014)
Greater Portland
Neurological Surgeon
Top 10 Doctor - City (2014)
Portland, OR
Neurological Surgeon


Dr. O'Neill has 4 hospital affiliations:

  • Providence St Vincent Medical Center 
  • Providence Portland Medical Center 


  • French

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Additional Information
Dr. Oisin Ruadri O'Neill MD is a male Neurosurgeon, has 26 years of experience and practices in Neurological Surgery.
Where does Dr. Oisin R. O'Neill practice?
Dr. Oisin O'Neill has 2 office locations.
Dr. Oisin O'Neill practices Neurological Surgery near Portland, OR.
See Portland Neurological Surgeons.