Accepting new patients

Dr. Oisin O'Neill, MD

Neurosurgery ·  Male · Age 59

Dr. O'Neill

Dr. Oisin O'Neill, MD is a neurosurgery specialist in Portland, OR and has been practicing for 26 years. He graduated from Royal College Of Surgeons In Ireland / Medical School in 1985 and specializes in neurosurgery.


Accepting new patients


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(503) 935-8501

Dr. O'Neill accepts the following insurance:

Aetna
Choice Plus POS II
Assurant Health
AvMed
Open Access
Blue Cross Blue Shield
Blue Card PPO
Cigna
Cigna PPO
Great West Healthcare-Cigna PPO
Commercial Insurance Company
Coventry Health Care
Medicare Advantage PFFS
First Choice Health
First Choice Health PPO
Harvard Pilgrim Health Care
Harvard Pilgrim Health Care PPO
Health Net
Health Net PPO
Humana
Choice Care PPO
LifeWise
Medicaid
MultiPlan
MultiPlan PPO
PHCS Network PPO
ODS Health Plan
PacificSource
Preferred PSN
PHP-Physicians Health Plan
Providence Health Plans
Personal Option EPO
Preferred PPO
Regence Blue Cross Blue Shield
Preferred Provider Network PPN
UnitedHealthCare
Choice Plus POS
Navigate HMO
Navigate POS
Options PPO

Background Check

No malpractice claims found for Oregon
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
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Experience Check

Check Dr. O'Neill's experience treating your condition or procedure

Dr. O'Neill's Top Procedures and Conditions

Treatment Frequency
Radiculopathy (Not Due to Disc Displacement)
very high
very high

Treatment Frequency

Dr. O'Neill treats Radiculopathy (Not Due to Disc Displacement) more than 94% of his peers

Dr. O'Neill treats this condition more than 94% of his peers

Rating Includes other areas of care:

  • Brachial Neuritis
  • Neuritis
  • Neuritis With Brachial Predilection
  • Optic Neuritis
  • Peripheral Neuritis
  • Polyneuritis
  • Radiculitis
  • Ulnar Neuritis
  • Vestibular Neuritis
Low Back Pain
very high
very high

Treatment Frequency

Dr. O'Neill treats Low Back Pain more than 92% of his peers

Dr. O'Neill treats this condition more than 92% of his peers

Neuroplasty
high
high

Treatment Frequency

Dr. O'Neill performs Neuroplasty more than 87% of his peers

Dr. O'Neill performs this procedure more than 87% of his peers

Dr. O'Neill's conditions and procedures:

  • Abscess or Cyst Drainage or Aspiration
  • Abscess or Fluid Incision and Drainage
  • Acoustic Neuroma
  • Aneurysm
  • Bone Disorders
  • Brain and Nervous System Cancer (incl. Gliomas, Astrocytoma, Schwannoma, Medulloblastoma, Chordoma)
  • Brain Aneurysm
  • Brain Cancer
  • Brain Disorders
  • Brain Surgery
  • Broken Neck
  • Cancer
  • Cauda Equina Syndrome
  • Cerebral Artery Thrombosis
  • Cerebral Hemorrhage
  • Cerebrospinal Fluid (CSF) Shunt - Insertion, Repair or Removal
  • Cerebrospinal Fluid Leak (CSF Leak)
  • Cerebrovascular Disease
  • Cervical Spine Myelopathy
  • Chiari's Deformity
  • Craniectomy, Craniotomy, Surgery of Skull Base, Neuroendoscopy
  • Degenerative Disc Disease
  • Disc Replacement
  • Dural Repair or Other Spinal Cord Repair
  • Ear Disorders
  • Epilepsy
  • Fracture
  • Herniated Disc
  • Herniated Disc Surgery
  • Hydrocephalus
  • Idiopathic Intracranial Hypertension
  • Intervertebral Disc Disease
  • Lamina Procedures (incl. Laminectomy, Laminoplasty, Laminotomy)
  • Low Back Pain
  • Lumbar Spine Fracture
  • Meningiomas
  • Myelopathy
  • Nerve Sheath Tumors
  • Neuroplasty
  • Neurostimulation
  • Normal Pressure Hydrocephalus
  • Pathological Spine Fracture
  • Post-Laminectomy Syndrome
  • Radiculopathy (Not Due to Disc Displacement)
  • Scoliosis
  • Secondary Malignancies
  • Spina Bifida
  • Spinal Cord Injury
  • Spinal Cord Stimulation
  • Spinal Cord Tumor
  • Spinal Fusion
  • Spinal Reconstructive Surgery for Deformities
  • Spinal Stenosis
  • Spine Deformities
  • Spine Disorders
  • Spine Fracture Treatment
  • Spine Fractures, Traumatic
  • Spondylolisthesis
  • Spondylosis
  • Stereotactic Surgery
  • Stereotaxis
  • Stroke
  • Subarachnoid Hemorrhage
  • Subdural Hemorrhage
  • Thoracic Spine Fracture
  • Thoracic Spine Myelopathy
  • Thrombosis
  • Traumatic Brain Injury
  • Vascular Disease

About Me

I would treat all my patients in a manner similar to how I would treat my family members.

Specialties

  • Neurosurgery

Board Certifications

Education

1994
Oregon Health & Science University
Residency Hospital
1993
Oregon Health & Science University
Fellowship Hospital
1991
Royal College Of Surgeons
Fellowship Hospital
1989
Ohsu Hospital and Clinics
Internship Hospital
1988
University Of Washington
Residency Hospital
1985
Royal College Of Surgeons In Ireland / Medical School
Medical School
1994
1993
1991
1989
1988
1985

Languages

  • French
  • English

Awards

Dr. O'Neill's Reviews

Likelihood to recommend Dr. O'Neill

3.6

Based on 33 reviews

5 Stars
60.60606060606061%
(20)
4 Stars
0%
(0)
3 Stars
9.090909090909092%
(3)
2 Stars
3.0303030303030303%
(1)
1 Star
27.272727272727273%
(9)

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Dr. O'Neill?
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Average Wait Time
  • 10 – 15 minutes
Dr. O'Neill's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. Oisin O'Neill, MD
RecentHighestLowestMost Helpful
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My experience with Dr O'Neill has been excellent. He's doing a second surgery on me. At both consultations we talked about symptoms, went over test results, and treatments. He is straight forward, respectful, and kind. He didn't marginalize my symptoms. Also, I have found his staff very helpful, the schedulers, MA, business office and everyone I've talked to. This is 100% legit review folks, because I usually rub people the wrong way!
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Dr O'Neill always helps me feel better and know what to do next. He has performed surgery on both my partner and me with great results. He listens and explains difficult issues clearly with a plan to move forward. Would refer him to anyone friends, family who need to address back issues. His staff are professional and responsive.
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I went to Dr. O'Neill for a second opinion and I left the office feeling confident that I was in the right hands. He went through the details of my condition and told me my options with as much time as needed for questions. He only had to look at me to see what was wrong, not even I noticed that my left leg had atrophied as the result of my herniated disc. As opposed to leaving the office questioning what the best option was I left his office knowing what needed to be done.
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HIs office scheduler is rude, unprofessional, and borders on incompetent.
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Update! 2 years later I found another surgeon that has stated that I didn't fuse with bone at all since my surgery!!! If this office cared at all they would have looked harder as to why a very healthy young woman was having these issues vs. only caring about their own egos! I'm 2 years after surgery with Dr. O'Neill and am in more pain than pre-surgery. The office didn't believe me... and they pretty much gave up on me.
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Hello Ashley, we're concerned about your recent...Read More
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Dr. O'Neill basically saved my life, operating as a Neurosurgeon in the Emergency Room of Providence-St. Vincent Hospital this past month for a subdural hematoma of the brain; he is the very archetype of a professional, compassionate Neurosurgeon as is his Assistant Allison; my wife and I are deeply grateful we were in his skilled hands! His staff at the Oregon Clinic are all great as well and he leads them in professional courtesy.
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Thank you and glad to help
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I had a wonderful experience with Dr. O'Neill. It was hard to get in to see him, but it was worth the wait. He had reviewed my MRI before the appt. and asked questions during the exam. After the exam, he reviewed the MRI with me, level by level. He outlined several approaches and was clear about what needed to be done to alleviate the pain and what should be done to ensure my c-spine was stable. I woke from the procedure pain-free and my recovery has been great.
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Good. Thank you
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I needed brain surgery for a meningioma and had an interview scheduled. My husband took time off from work, and Dr. O'Neill kept us waiting 45 minutes while he discussed sports with someone else, loudly. It took all our available time and when we expressed our frustration, he shouted at us! Dreadful experience -- we were needing help not confrontation.
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I don't follow American sports and I do not shout...Read More
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Dr.Oneal abruptly shoved all files,films in my husbands arms and physically pushed him out the door when we asked him for a recommendation for a 2nd opinion. He is so arrogant he told me You wouldn't understand instead of answering my questions. Assuming I am stupid. He took NO time explaining anything..(DUHHH) Refusing to spell one of things I wanted to look up. (He probably didn't know how to spell it) Best to know him before placing trust in him.
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Absolutely untrue
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He did back surgery for me in 1996 and I was very impressed. 18 years later, I returned with compression of cervical disc. He did surgery then too. I could not be MORE UNIMPRESSED. Very big change in this man in 18 years. He was gung-ho to do the surgery but absolutely did not care about the after effects. I have suffered everyday since his surgery and he dismissed me with a go see a shoulder doctor. AVOID AT ALL COSTS.
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I want all of my patients to do well. At My last...Read More
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