Timothy L. Kerwin, MD

Radiation Oncology


Dr. Timothy Kerwin is a strong patient advocate, and believes in the integration of compassionate care with state of the art technology. He stresses a multidisciplinary approach to assure that treatment recommendations are made with careful consideration to achieve superior outcomes. Active in clinical oncology research, Dr. Kerwin has presented at national meetings and has several publications to his credit. Dr. Kerwin has been Chairman of the NCH Cancer Committee since 2014 and has served as Division Chief of Radiation Oncology at Physician’s Regional Medical Center since 2012. He has been named a Castle Connolly Top Doctor every year since 2015.


21st Century Oncology
8991 Brighton Lane
Bonita Springs, 34135 Florida
239-949-8580 Fax

21st Century Oncology
955 10th Avenue North
Naples, 34102 Florida
239-732-2995 Fax

21st Century Oncology
8350 Sierra Meadows
Naples, 34113 Florida
239-530-4895 Fax

21st Century Oncology
1885 SW Health Parkway
Naples, 34109 Florida
239-593-3022 Fax

21st Century Oncology
733 4th Avenue North
Naples, 34102 Florida
239-436-6397 Fax


Tulane University
BS, Chemistry
New Orleans, LA
Emory University School of Medicine
Doctor of Medicine
Atlanta, GA
Emory University
Internal Medicine
Atlanta, GA
Kaiser Permanente
Radiation Oncology, Chief Resident
Los Angeles, CA

Clinical Expertise and Interests

Board Certifications
Board Certified - Radiation Oncology
Clinical Interests
Prostate, Breast, Lung, Colorectal, Skin, Head and Neck, Brain Malignancies and Lymphoma

Awards and Honors

Castle Connolly Top Doctors - 2015-2018, Chairman of NCH Cancer Committee, Division Chief of Radiation Oncology at PRMC

Current and Past Positions

Current Position

21st Century Oncology - Radiation Oncologist
Naples, FL
Past Positions
Premiere Oncology - Radiation Oncologist
Naples, FL
Morton Plant Hospital & Bardmoor Cancer Center – Radiation Oncologist
Clearwater, FL
US Dept of Energy – Research Scholar in nuclear engineering and particle physics – FermiLab & PPPL
Batavia, IL & Princeton, NJ