Summary

Dr. Oneill graduated from the Rutgers New Jersey Medical School in 1979. He works in Manchester, CT and 2 other locations and specializes in Pathology. Dr. Oneill is affiliated with Manchester Memorial Hospital.

Quick Facts

  • accepting new patients
  • 47 years of experience
  • 57 insurance plans accepted
  • speaks English
  • Hartford Hospital
  • 1 specialty
  • 4 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 3 office locations
  • Male

Office Locations

Dr. Dennis Gerard Oneill has 3 locations

Eastern Connecticut Pathology Consultants

71 Haynes StManchester, CT 06040
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

Connecticut Gi Hartford

85 Seymour St Ste 1000Hartford, CT 06106
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

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Dr. Dennis Gerard Oneill, MDDr. Liron PantanowitzDr. Soo Hwan Pai, MDDr. Elina Donskoy, MD
PathologyPathologyPathologyPathology
Accepts New Patients
47 Years of Experience 30 Years of Experience 62 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English
Manchester , CTPittsburgh , PAFarmington , CTWaban , MA
Med School: Rutgers New Jersey Medical School Med School: University Of The Witwatersrand Med School: Yonsei University College Of Medicine
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. Dennis Gerard Oneill

  • Aetna
  • Aetna - HMO
  • Aetna - Medicare (Advantage HMO)
  • Aetna - PPO
  • AmeriGroup
  • Assurant Health
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Rhode Island
  • BLUE CROSS of CALIFORNIA
  • CarePartners of Connecticut
  • CarePartners of Connecticut - HMO
  • Cigna
  • Cigna - HMO
  • Cigna - PPO
  • Commonwealth Care Alliance
  • ConnectiCare
  • ConnectiCare - HMO
  • ConnectiCare - Medicare
  • EmblemHealth
  • EmblemHealth - HMO
  • First Health (Coventry Health Care) - HMO
  • Golden Rule
  • Harvard Pilgrim Health Care
  • Harvard Pilgrim Health Care - HMO
  • Health New England
  • Health New England - HMO
  • HealthScope Benefits
  • Humana
  • Humana - HMO
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicare
  • Meritain Health
  • Meritain Health - PPO
  • Neighborhood Health Plan
  • Optum Health
  • Oscar Health Insurance
  • STLDentalPlan| LLC
  • Tricare
  • Tufts Health Plan
  • Tufts Health Plan - HMO
  • UniCare - HMO
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicaid (Managed)
  • UnitedHealthcare - Medicare
  • UnitedHealthcare - Medicare (Advantage HMO)
  • UnitedHealthcare - PPO
  • UnitedHealthcare Community Plan
  • UnitedHealthcare Oxford
  • UnitedHealthcare Oxford - HMO
  • Well Sense Health Plan
  • Wellcare
  • Wellcare - HMO
  • Wellcare - Medicaid (Managed)

Medical Specialties

Dr. Dennis Gerard Oneill has the following specialty

Specialty Expertise

Dr. Dennis Gerard Oneill has the following 4 areas of expertise

  • Binge Eating Disorder
  • Blood Testing
  • Fluid Testing
  • Tissue Biopsy

Certifications, License, & Education

47 Years Experience

MEDICAL LICENSE

Medical Doctor, Connecticut, 2026, Active

EDUCATION & TRAINING

Residency

Hartford Hospital

Medical School

Rutgers New Jersey Medical SchoolGraduated in 1979

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Frequently Asked Questions

Is Dr. Dennis Oneill accepting new patients?
Dr. Dennis Oneill is accepting new patients on Vitals. View Dr. Dennis Oneill's profile on Vitals to make an appointment.
How can I make an appointment with Dr. Dennis Oneill?
You can find contact information for Dr. Dennis Oneill here on Vitals.
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.
Which hospitals is Dr. Dennis Oneill affiliated with?
Dr. Dennis Oneill is affiliated with Manchester Memorial Hospital.
What languages does Dr. Dennis Oneill speak?
Dr. Dennis Oneill speaks English.

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