Our History

In 2008, a group of radiation oncologists with extensive backgrounds in radiosurgery opened the first CyberKnife Center in the Tampa Bay area of Florida. Conveniently located on the campus of Town and Country Hospital in Tampa, this state of the art facility is equipped to be one of the best cancer treatment centers in America.

Utilizing the latest in robotic technology, Accuray’s CyberKnife is a viable non-surgical alternative for cancer treatment. Usually only available in cancer treatment hospitals, CyberKnife Centers of Tampa Bay makes this powerful Stereotactic Radiosurgery Robot available in the convenience of a neighborhood cancer center.

Medical Staff

Our staff of cancer specialists is available to provide you with cancer treatment information.

Dr. Randy Kahn- Medical Director

Randy Kahn, M.D., is board certified in internal medicine & radiation oncology. A graduate of Franklin & Marshall College in Pennsylvania, he received his medical degree from New York University School of Medicine in 1984.

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Dr. Jack Steel 

Jack Steel, M.D., is a board certified radiation oncologist with more than 20 years of brachytherapy experience. He has performed over 3,000 prostate seed implant procedures.

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Dr. Harvey Greenberg 

Harvey Greenberg, M.D., graduated from the University of Chicago with a BS Degree in Pharmacology in 1968 and received his medical degree (cum laude) from the University of Pittsburgh in 1972.

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Dr. Debra Freeman

Debra Freeman, M.D. completed her undergraduate studies in premedicine and theology at Davidson College, NC, graduating magna cum laude. She returned to her hometown, Gainesville, FL to complete medical school and residency at the University of Florida.

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Contact Info

Dr. John M. Koval

John M. Koval, M.D. is Board Certified in Radiation Oncology. He is a graduate of Loyola University of the South, New Orleans, LA., and received his medical degree from University of Miami School of Medicine in 1975

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Participating Physicians

Tampa Bay Radiation Oncology (TBRO)

Jack Steel, MD
Randy Kahn, MD
John Koval, MD
Alison Calkins, MD
Harvey Greenberg, MD

Baycare Neurosurgery at St. Joseph’s Hospital:

Gabriel Gonzales-Portillo, MD
Juan Valdiva-Valdiva, MD

Baycare Neurosurgery at Morton Plant Hospital:

Harold Colbassani, MD
Devon Haydon, MD
Christopher Mickler, MD

USF Health:

Harry van Loveren, MD
Siviero Agazzi, MD
Donald Smith, MD
Lawrence Berk, MD
Jayson Sack, MD
Raul Olivera, MD

Brain2Spine Institute:

Kirk Jobe, MD
Cedric Shorter, MD
Adam Befeler, MD

Premier Neuro Spine Institute: 

Christopher Koebbe, MD

Tampa Bay Hearing and Balance Center:

Christopher Danner, MD
Loren Bartels, MD
Kyle Allen, MD

Sinus & Nasal Institute of Florida:

Donald Lanza, MD
Alla Solyar, MD

Advanced ENT’s of Tampa Bay:

Trina E. Espinola, MD
Julia Pfaff, DO

St. Pete Urology:

Nicholas Laryngakis, MD
Reid Graves, MD

Orlando Health Urology:

Brian Parnes, MD

We Accept Most Insurance Carriers

We work to obtain pre-authorization with all insurance companies.