Summary

Dr. Dennis Oneill is a board-certified internal medicine physician with specialized expertise in geriatric medicine and hospital medicine. He earned his medical degree from Hahnemann University School of Medicine and completed his residency training at the prestigious Cleveland Clinic Health System. With nearly five decades of clinical experience, Dr. Oneill brings extensive knowledge to caring for adult patients, particularly older adults who require specialized medical attention.

Dr. Oneill practices at multiple respected healthcare facilities, including Sentara Careplex Hospital and Riverside Regional Medical Center, serving patients throughout Hampton and Newport News, Virginia. His practice encompasses comprehensive internal medicine care with a particular focus on the unique healthcare needs of geriatric patients. He also provides specialized hospital medicine services, caring for patients during their inpatient stays. Patients rate Dr. Oneill 2.3 out of 5 stars on average.

Overview based on verified provider data

Quick Facts

  • 2.3
  • 49 years of experience
  • Cleveland Clinic Health System
  • 3 specialties
  • 3 areas of expertise
  • 3 board certifications
  • 3 hospital affiliations
  • 2 office locations
  • Male

Office Locations

Dr. Dennis M Oneill has 2 locations

Sentara Careplex Hospital

3000 Coliseum DrHampton, VA 23666

Riverside Regional Medical Center

500 J Clyde Morris BlvdNewport News, VA 23601

Compare with Similar Doctors

Dr. Dennis M Oneill, MD
Dr. Phanindar R. Sadhu, MD
Dr. Janice E. Mcmillan, MD
Dr. Michelle Zucherman, DO
Dr. Dennis M Oneill, MDDr. Phanindar R. Sadhu, MDDr. Janice E. Mcmillan, MDDr. Michelle Zucherman, DO
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
2.3 
49 Years of Experience 22 Years of Experience 11 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English
Hampton , VAFairfax , VAFairfax , VAFairfax , VA
Med School: Hahnemann University School Of Medicine Med School: Gandhi Medical College Secunderabad Med School: University Of Virginia School Of Medicine Med School: Lake Erie College of Osteopathic Medicine
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. Dennis M Oneill

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Dennis M Oneill has the following 3 specialties

Specialty Expertise

Dr. Dennis M Oneill has the following 3 areas of expertise

  • Alzheimer's Disease
  • Geriatric Medicine
  • Hospital Medicine

Certifications, License, & Education

49 Years Experience

Dr. Dennis M Oneill holds an active medical license in the state of Virginia.

Medical License

Medical Doctor with an active medical license in the state of Virginia that expires in 2026.

Education & Training

Residency

Completed their residency at Cleveland Clinic Health System.

Medical School

Graduated from Hahnemann University School Of Medicine in 1977.

NPI Number

Dr. Oneill's NPI number is 1639160716.

Similar doctors

Frequently Asked Questions

Is Dr. Dennis Oneill accepting new patients?
Dr. Dennis Oneill has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Where is Dr. Dennis Oneill's office located?
Dr. Dennis Oneill's office is located at 3000 Coliseum Dr, Hampton, VA, 23666.
Does Dr. Dennis Oneill accept my insurance?
You can see the insurance plans that Dr. Dennis Oneill accepts on their Vitals profile.
Which hospitals is Dr. Dennis Oneill affiliated with?
Dr. Dennis Oneill is affiliated with Sentara Careplex Hospital, Riverside Regional Medical Center, and Bon Secours Mary Immaculate Hospital.
Does Dr. Dennis Oneill accept virtual/telehealth appointments?
Dr. Dennis Oneill has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.