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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).

Learn more about Dr. Dennis O'Neill:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. Dennis O'Neill is Average. Dr. O'Neill has been reviewed by 3 patients who have provided 0 comments. The rating is 2.5 out of 5 stars.

Patient Ratings
Ease of Appointment 1.0
Promptness 1.0
Courteous Staff 3.0
Accurate Diagnosis 3.0
Bedside Manner 3.0
Spends Time with Me 3.0
Follows Up After Visit 1.0

Specialties & Research

Dr. Dennis O'Neill, MD is board certified in Internal Medicine and Geriatric Medicine.

Education & Awards

Dr. O'Neill graduated from Drexel University , Philadelphia.


Dr. O'Neill has 7 hospital affiliations:

  • Riverside Regional Medical Center 
  • Riverside Walter Reed Hospital 


  • French

> > > > Dr. Dennis O'Neill, MD

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Additional Information
Dr. Dennis Michael O'Neill MD is a male Internist, has 34 years of experience and practices in Internal Medicine and Geriatric Medicine.
Where does Dr. Dennis M. O'Neill practice?
Dr. Dennis O'Neill has 3 office locations.
Dr. Dennis O'Neill practices Internal Medicine and Geriatric Medicine near Newport News, VA.
See Newport News Internists and Newport News Geriatric Doctors.