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).

Learn more about Dr. Dermot O'Neill:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. Dermot O'Neill is Excellent. Dr. O'Neill has been reviewed by 2 patients who have provided 1 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Education & Awards

Dr. O'Neill graduated from Royal College Of Surgeons In Ireland, Dublin.


Dr. O'Neill has 11 hospital affiliations:

  • St Elizabeth Medical Center - Wabasha 
  • Saint Joseph's Hospital-Marshfield 


  • French

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Additional Information
Dr. Dermot A O'Neill MD is a male Anesthesiologist and practices in Anesthesiology.
Where does Dr. Dermot A. O'Neill practice?
Dr. Dermot O'Neill has 2 office locations.
Dr. Dermot O'Neill practices Anesthesiology near Marshfield, WI.
Additional practice locations include: Eau Claire, WI.
See Marshfield Anesthesiologists.