Radiotherapy Clinics of Georgia – Covington

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Quality, Personalized Cancer Care
In Our Community

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Your Life, Our Commitment

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The Road to Recovery
     Should Be Close to Home

Welcome to Radiotherapy Clinics of Georgia

Thousands of patients trust their care to Radiotherapy Clinics of Georgia

Radiotherapy Clinics of Georgia is proud to be part of the community in Covington Georgia. We believe you shouldn’t have to choose between high-quality care and proximity to the critical support of your family and friends. We provide Quality cancer care close to home.

Set in a compassionate and comfortable environment located near Newton Piedmont hospital, Radiotherapy Clinics of Georgia offers advanced technology and a wide range of services delivered by experienced health care professionals. From intensity modulated radiation therapy (IMRT) to high-dose rate (HDR) brachytherapy, some of the most advanced procedures are available for radiation treatment, including image-guided radiation therapy (IGRT). Radiotherapy Clinics of Georgia’s cancer center is designed to help in your fight against cancer with leading-edge radiation therapy, and other vital services.

Radiotherapy Clinics of Georgia was founded in 1984 by renowned radiation oncologist Dr. Frank Critz. It is a center of excellence in radiation treatment for cancer. We use the latest radiation technology and meticulous research to treat men and women with different types of cancer, including breast, prostate, lung, colon, lymphatic and many others. Radiotherapy Clinics of Georgia is also home to the oldest and most successful prostate seed implant program in existence. We’re proud to say that our treatment for prostate cancer, ProstRcision®, has the world’s highest proven cure rate.

Our story is spreading.

We started with one location in Conyers, Georgia, a quiet suburb of Atlanta. But over the years, we’ve branched out with offices throughout metro Atlanta. As we’ve expanded, our reputation has grown as well. Radiotherapy Clinics of Georgia has become one of the country’s top cancer treatment and research facilities, especially in the area of prostate cancer.

We have treated more than 17,000 men for prostate cancer. We have compiled our observations of these men, both before and after treatment, into one of the largest computerized databases on prostate cancer in the U.S. In addition, our doctors have written over 80 peer-reviewed research papers on prostate cancer that have been published or presented at major medical meetings.

Each year, patients from across the United States and around the globe, come to us seeking a cure for their cancer. Sure, we can tout our credentials, but we would rather talk about results. The physicians at Radiotherapy Clinics of Georgia are some of the finest, most experienced radiation oncologists in the United States. Though their backgrounds differ, each has come here because they believe that data-driven, evidence-based medicine can save more lives. In addition to being talented practitioners, our physicians are actively involved in the advancement of cancer research. In fact, Radiotherapy Clinics of Georgia is responsible for more published papers on prostate cancer than any other radiation practice in Georgia.


John Gargus, MD

Radiation Oncology

John Gargus, MD is board certified as a Radiation Oncologist by the American Board of Radiology.

Dr. John Gargus has been practicing radiation oncology for over 25 years, many of which have been with RCOG in their Gwinnett County Radiation Center in Lawrenceville, Georgia. While he performs general radiation oncology, Dr. Gargus has a special interest in the treatment of breast cancer.

Dr. Gargus believes in providing quality, personalized cancer care in a community setting, and demonstrates that commitment daily in his patient care activities.

Dr. Gargus attended the Medical College of Virginia (MCV), receiving his medical degree in 1978. After completing his residency in therapeutic radiology at MCV, he moved to Lynchburg, where he worked in private practice for 8 years. He later moved to Atlanta and points out that the city’s “excellent medical community makes it much easier to practice medicine.”

Dr. Gargus is originally from Northern Virginia. He enjoys scuba diving when he gets the chance, and also loves astronomy and following the local sports teams in Atlanta.

• Medical School: Medical College of Virginia

• Therapeutic Radiology, Medical College of Virginia,

Board Certification:
• American Board of Radiology in Radiation Oncology


CT Scanning & Simulation
External Beam Radiation Therapy
High Dose Rate Brachytherapy (HDR
Image-Guided Radiation Therapy (IGRT)
Intensity-Modulated Radiation Therapy (IMRT)

News / Events

Tracy McElveen Named a Top Doctor at Atlanta Magazine’s 2016 Top Doctors Reception

(June 23, 2016) ATLANTA, Ga. – Every year Atlanta magazine’s editorial staff partners with the New York-based research firm, Castle Connolly Medical Ltd., to assist in producing our Top Docs issue. The issue is immensely popular among our readers, and the Top Doctors covet the honor of being named in the issue. This year’s reception […]

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Radiotherapy Clinics of Georgia – 25 Year Disease Free Survival Rate after Irradiation of Prostate Cancer

(March 15, 2013) Newswise – ATLANTA, Ga. – The March 2013 issue of The Journal of Urology, the official journal of The American Urological Association, includes a study conducted by four physicians from Radiotherapy Clinics of Georgia (RCOG), a Vantage Oncology affiliate. This study, 25 Year Disease Free Survival Rate after Irradiation of Prostate Cancer […]

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