Dr. John E. Sylvester

  • MD
  • Radiation Oncologist
  • Spoken languages English


Career Positions

Current position(s)

  • GenesisCare - Radiation Oncologist, Lakewood Ranch, FL
  • Clinical Assistant Professor - Florida State University, College of Medicine

Past position(s)

  • Seattle Prostate Institute - Clinical Research Director (June 2008- July 2009)
  • Seattle Prostate Institute - Medical director (Jan 2001- June 2008)
  • Seattle Prostate Institute - Director - Education/Training (Jan 1997- Jan 2001)
  • Seattle Prostate Institute - Cofounder (July 1988 - July 2009)



  • Undergrad - 9/1975-3/80 UCSB, Santa Barbara, CA, (B.A. Biological Sciences)
  • Medical School - 9/1980-6/84 UCLA, Los Angeles, CA


  • 6/1985-6/88 UCLA Department of Radiation Oncology
  • 6/1987-6/88 Chief Resident


  • 6/1984-6/85 USC, Huntington Memorial Hospital, (Internal Medicine)

Expertise And Interests


  • Dr. John Sylvesters clinical interest include prostate, bladder and skin cancer


Dr. John Sylvester has over 50 presentation and over 80 publications which can be shared upon request, covering various aspects of his clinical expertise.

Awards and honors

  • American Cancer Society Fellowship
  • Manatee Chamber of Commerce Champions of Healthcare Finalist
  • Innovation/Research Award Manatee County
  • Fellow American Brachytherapy Society (FABS)
  • Top Doctors Radiation Oncology Sarasota Magazine (2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020)


  • Transrectal Ultrasound-Guided Prostate Brachytherapy
  • Prostate Brachytherapy Seed Identification On Post-Implant TRUS Images
  • Ten-Year Biochemical Relapse-Free Survival Following External Beam Radiation and Brachytherapy for Localized Prostate Cancer: The Seattle Experience
  • Brachytherapy for Carcinoma of the Prostate: Techniques, Patient Selection, and Clinical Outcomes
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Prostate Cancer Comparative Effectiveness

Dr. John E Sylvester , 2020, Important information for prostate cancer patients

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D. A. Hamstra, N. F. Mariados, D. K. Shah, S. M. Kurtzman, J. E. Sylvester, S. H. Zimberg, R. S. Hudes, L. Karsh, M. D. Logsdon, D. C. Beyer, M. Kos, R. A. Hsi, K. Forsythe, E. M. Soffen, P. M. Francke, H. Zhang, T. L. DeWeese, R. J. Ellis II, C. A. Mantz, W. R. Bosch, and J. M. Michalski;, 2016, ASTRO

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Daniel A. Hamstra, Dhiren Shah, Steven Kurtzman, John Sylvester, Shawn H. Zimberg, Richard S. Hudes, LawrenceIvan Karsh, Mark D. Logsdon, David Beyer, Michael Kos, R. Alex Hsi, Kevin Forsythe, Edward M Soffen, Patrick MFrancke, Hong Zhang, Theodore L. DeWeese, Rodney J. Ellis, Jeffrey Bogart, Constantine Mantz, Neil Mariados, 2017, Genitourinary Cancers Symposium

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In the news

Dr. John Sylvester speaks on ABC7 about the importance of prostate cancer screening and treatment

April 13, 2021

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John Sylvester's Reviews


based on 269 Ratings 79 Comments


The initial connection with Doxy was not without problems but the issue was resolved and the video conference eventually went well.


I can't think of anything. They also do a good job.


Warn me about catheter insertion and balloon edge


The doc explained the process but his notes where hard to read once we were home and trying to digest everything.

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