Summary

Dr. Cornelius Oneill is a physician specializing in internal medicine and surgery with four decades of clinical experience. He earned his medical degree from the University of Mississippi School of Medicine and completed his residency training at LSU Health Sciences. His extensive background spans 44 years of patient care, providing him with deep expertise in managing complex medical conditions.

Dr. Oneill practices at the GV Sonny Montgomery Department of Veterans Affairs Medical Center in Jackson, Mississippi. He focuses on treating heart rhythm disorders, including atrial fibrillation and irregular heartbeats that can cause palpitations or chest discomfort. His surgical skills include performing diagnostic procedures such as heart rhythm monitoring with EKGs and colonoscopies to screen for digestive system problems. Patients have given him an average rating of 4.0 out of 5 stars.

AI-generated from data on this provider profile.

Quick Facts

  • 4
  • 44 years of experience
  • 4 insurance plans accepted
  • Lsu Health Sciences
  • 1 written review
  • 2 specialties
  • 7 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 1 office location
  • Male

Office Location

Gv Sonny Montgomery Va Medical Center

1500 E Woodrow Wilson AveJackson, MS 39216

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Dr. Cornelius John Oneill, MDDr. Shanna Pettie, MDDr. Benjamin Clayton Mcintyre, MDDr. Naseem Akhtar Qureshi, MD
Internal MedicineInternal MedicinePlastic SurgeryNephrology
Accepts New Patients
4.1 
44 Years of Experience 18 Years of Experience 27 Years of Experience 37 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English
Jackson , MSJackson , MSJackson , MSJackson , MS
Med School: University Of Mississippi School Of Medicine Med School: Wayne State University School Of Medicine Med School: University Of South Carolina School Of Medicine Columbia Med School: Dow Medical College
Current Profile
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Insurance Plans Accepted by Dr. Cornelius John Oneill

  • Aetna
  • Medicare
  • Medicare - Medicare
  • UnitedHealthcare

Medical Specialties

Dr. Cornelius John Oneill has the following 2 specialties

Specialty Expertise

Dr. Cornelius John Oneill has the following 7 areas of expertise

  • Check-up
  • Heartburn
  • Immunization
  • Physical
  • Surgery
  • Vaccination
  • Weight Loss

Certifications, License, & Education

44 Years Experience

MEDICAL LICENSE

Medical Doctor, Mississippi, 2026, Active

EDUCATION & TRAINING

Residency

Lsu Health Sciences

Medical School

University Of Mississippi School Of MedicineGraduated in 1982

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Frequently Asked Questions

Is Dr. Cornelius Oneill accepting new patients?
Dr. Cornelius Oneill has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Where is Dr. Cornelius Oneill's office located?
Dr. Cornelius Oneill's office is located at 1500 E Woodrow Wilson Ave, Jackson, MS, 39216.
Does Dr. Cornelius Oneill accept my insurance?
You can see the insurance plans that Dr. Cornelius Oneill accepts on their Vitals profile.
Does Dr. Cornelius Oneill accept virtual/telehealth appointments?
Dr. Cornelius 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. Cornelius Oneill affiliated with?
Dr. Cornelius Oneill is affiliated with Gv Sonny Montgomery Department Of Veterans Affairs Medical Center.

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