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Dr. John O'Connell, MD

Dr. John O'Connell, MD

Radiation Oncology*
30+ years of experience

Dr. John O'Connell, MD is a radiation oncologist in Seneca, SC and has over 30 years of experience in the medical field. He graduated from Georgetown University School of Dentistry in 1993. He is affiliated with medical facilities Prisma Health Greenville Memorial Hospital and Prisma Health Greer Memorial Hospital. He is accepting new patients.

Practice

131 Lila Doyle Dr Seneca, SC 29672

Make an Appointment

(864) 888-3717

Hospital Highlight

Dr. O'Connell is affiliated with Prisma Health Greer Memorial Hospital Greer, a highly rated hospital.

At a Glance

  • Area of Expertise
    Dr. O'Connell specializes in the area of Radiation Oncology. • See board certifications
  • Practices at Top Hospital
    Patient Safety Excellence Award™ • See hospitals
  • Good Communication
    Patients said there was good doctor communication at the hospital. • See hospitals
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Dr. O'Connell's Reviews

Know Before You Go

About Me

biography

Dr. John O'Connell, MD is a radiation oncologist in Seneca, SC and has over 30 years of experience in the medical field. He graduated from Georgetown University School of Dentistry in 1993. He is affiliated with medical facilities Prisma Health...read more

  • Radiation Oncology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Georgetown University School Of Dentistry

    Medical School, 1993
American Board of Medical Specialties®
American Board of Radiology®
- 
Radiation Oncology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

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Locations

Practice

Greenville Health System131 Lila Doyle Dr Seneca, SC 29672
1
Prisma Health-Upstate900 W Faris Rd Greenville, SC 29605
2

Practice

Office300 E McBee Ave Fl 4 Greenville, SC 29601
3

Practice

Greenville Health System340 Medical Pkwy Greer, SC 29650
4

Affiliated Hospitals

  • Prisma Health Greer Memorial Hospital

    830 S Buncombe Rd
    Greer, SC 29650
    Recipient of 5
    hospital awards

    Patient Safety Excellence Award™ (2025)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    89%
    Patients said they were given information about recovering at home

    2% higher than the national average

    83%
    Patients said that doctors always listened to them and explained things well

    5% higher than the national average

    View all patient feedback

  • Prisma Health Greenville Memorial Hospital

    701 Grove Rd
    Greenville, SC 29605
    Recipient of 25
    hospital awards

    America's 250 Best Hospitals Award™ (2025, 2024)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    Patient Safety Excellence Award™ (2025, 2024)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    84%
    Patients said they were given information about recovering at home
    76%
    Patients said that doctors always listened to them and explained things well
    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality