Summary

Dr. Cormac Oneill is a urologist and surgeon with 20 years of experience treating conditions affecting the urinary system and male reproductive health. He earned his medical degree from the Royal College of Surgeons in Ireland School of Medicine, bringing international medical training to his practice in New Hampshire. Dr. Oneill is fluent in both English and Spanish, allowing him to serve a diverse patient population.

Dr. Oneill is affiliated with Wentworth Douglass Hospital and Portsmouth Regional Hospital, with practice locations in Dover and Portsmouth. He specializes in treating enlarged prostate, kidney stones, and difficulty urinating. His expertise includes performing comprehensive urine testing, bladder function studies, and measuring how completely patients empty their bladder. Patients consistently rate Dr. Oneill 5.0 stars, reflecting their confidence in his surgical skills and compassionate care.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 5
  • 20 years of experience
  • speaks English, Spanish
  • Royal College Of Surgeons In Ireland
  • 2 specialties
  • 2 areas of expertise
  • 2 board certifications
  • 2 hospital affiliations
  • 4 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Cormac Eoin Oneill has 4 locations

Manchester Urology Associates At Dover

10 Members Way Ste 402Dover, NH 03820
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

Portsmouth Regional Hospital

333 Borthwick AvePortsmouth, NH 03801

Manchester Urology Associates Pa

330 Borthwick Ave Ste 210Portsmouth, NH 03801
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

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Dr. Cormac Eoin Oneill, MD
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Dr. Cormac Eoin Oneill, MDDr. Louis Shrhung Liou, MDDr. Shawn Marcus Rayder, MDDr. Daniel Henry Detolla, MD
UrologyUrologyDiagnostic RadiologyOral & Maxillofacial Surgery
Accepts New Patients Accepts New Patients Accepts New Patients
3.2 
4.1 
20 Years of Experience 30 Years of Experience 39 Years of Experience 28 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English, Spanish Speaks Spanish, French Speaks English
Dover , NHCambridge , MADover , NHPortsmouth , NH
Med School: Royal College Of Surgeons In Ireland Med School: Boston University School Of Medicine Med School: Tufts University School Of Medicine Med School: Jacobs School Of Medicine & Biomedical Sciences At The Univ Of Buffalo
Current Profile
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Insurance Plans Accepted by Dr. Cormac Eoin Oneill

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Cormac Eoin Oneill has the following 2 specialties

Specialty Expertise

Dr. Cormac Eoin Oneill has the following 2 areas of expertise

  • Laparoscopic Surgery (Laparoscopy)
  • Surgery

Certifications, License, & Education

20 Years Experience

Dr. Cormac Eoin Oneill holds an expired medical license in the state of New Hampshire.

Medical License

Medical Doctor with an expired medical license in the state of New Hampshire that expired in 2026.

Education & Training

Medical School

Graduated from Royal College Of Surgeons In Ireland and Royal College Of Surgeons In Ireland School Of Medicine in 2006.

NPI Number

Dr. Oneill's NPI number is 1710147541.

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Frequently Asked Questions

Does Dr. Cormac Oneill accept virtual/telehealth appointments?
Dr. Cormac Oneill has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. Cormac Oneill's office located?
Dr. Cormac Oneill's office is located at 10 Members Way Ste 402, Dover, NH, 03820.
What languages does Dr. Cormac Oneill speak?
Dr. Cormac Oneill speaks English and Spanish.
Is Dr. Cormac Oneill accepting new patients?
Dr. Cormac Oneill is accepting new patients on Vitals. View Dr. Cormac Oneill's profile on Vitals to make an appointment.
Which hospitals is Dr. Cormac Oneill affiliated with?
Dr. Cormac Oneill is affiliated with Wentworth Douglass Hospital and Portsmouth Regional Hospital.

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