Gateway-Vanderbilt Cancer Treatment Center
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Hours of Operation:
Mon.-Fri. 8 a.m. - 4:30 p.m.

Phone: 931-221-0479
Fax: 931-221-3280

375 Alfred Thun Road
Clarksville, TN 37040

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Steven Goertz, MD

Steven Goertz, MDSteven Goertz, MD, joined the Vanderbilt team and Gateway’s medical staff in December of 2001. He trained at the Medical College of Virginia and Vanderbilt University. Dr. Goertz brings 14 years of radiation oncology experience to Gateway-Vanderbilt Cancer Treatment Center. He is also one of two founding members of the Gamma Knife Program at Health South Hospital in Birmingham, Alabama.

Corbin Johnson, MD

Corbin Johnson, MDCorbin Johnson, MD, joined the Vanderbilt team and Gateway’s medical staff in 2006. He trained at Washington University School of Medicine in St. Louis, Rush-Presbyterian-St. Lukes Medical Center in Chicago, and Mallinckrodt Institute of Radiology in St. Louis. Dr. Johnson has 15 years experience in radiation oncology and has given numerous presentations on specific cancer sites and related topics.

Diandra Ayala-Peacock, MD

Corbin Johnson, MDDiandra Ayala-Peacock, MD, joined the Vanderbilt team in August, 2015. She obtained her BS in Molecular Biochemistry & Biophysics from Yale University and completed her Residency in Radiation Oncology at Wake Forest University Baptist Hospital in Winston-Salem, NC. Dr. Ayala-Peacock has completed numerous publications and presentations. She treats a variety of cancers with particular focus on Gynecologic cancers, Melanoma, Brachytherapy and stereotactic radiosurgery.


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