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Sean Cavanaugh, MD

Prostate Center Medical Director & Radiation Oncologist

Southeastern Regional Medical Center

"At Cancer Treatment Centers of America, experts join together to analyze and discuss each case, and decisions are made as a team. It is a different approach to healthcare, and I wanted to be a part of it."

- Sean Cavanaugh, MD
Sean Cavanaugh, MD

Medical Degree

  • Texas Tech University Health Sciences Center

Internship / Residency

  • General Pediatrics - University of Texas Health Science Center at San Antonio
  • Radiation Oncology - University of Texas Health Science Center at San Antonio


  • American Board of Radiology

Practicing Since: 2005

After working in a private practice for seven years in both Texas and Georgia, Dr. Sean Cavanaugh joined Cancer Treatment Centers of America (CTCA) at Southeastern Regional Medical Center (Southeastern). Part of the reason he came to CTCA was to maintain focus on the patient’s well-being as a top priority.

"At CTCA, the difference is teamwork," says Dr. Cavanaugh, who is a Radiation Oncologist and Prostate Center Medical Director. “Here, the physicians truly work together on the same team to help our patients."

Dr. Cavanaugh received a medical degree from Texas Tech University Health Sciences Center in Lubbock. He then completed a general pediatrics internship at University of Texas Health Science Center at San Antonio (UTHSCSA), where he also finished the B. Leonard Holman Pathway Residency in radiation oncology.

An experienced radiosurgeon for both extracranial and intracranial malignancies, Dr. Cavanaugh regularly performs high-dose rate and low-dose rate brachytherapy, as well as all aspects of highly conformal external beam radiation therapy.

Certified by the American Board of Radiology, Dr. Cavanaugh is also a member of the American College of Radiology and the International Society for Radiosurgery. Dr. Cavanaugh has been published in numerous journals, including Urology, International Journal of Radiation Oncology*Biology*Physics and Technology in Cancer Research and Treatment.

"I take the fight against cancer very personally,” says Dr. Cavanaugh, whose brother and father are both cancer survivors. "It is my privilege to care for my patients in the most advanced and compassionate manner possible."

In 2011, Dr. Cavanaugh was honored with a Compassionate Doctor Certification from Patient’s Choice. He also received Georgia’s Favorite Physicians Award in 2009, 2010 and 2011. Dr. Cavanaugh received the Patients' Choice Award and the On-Time Physician Award from in 2014.

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