Meet The Proton Therapy Experts.

The radiation oncologists at the University of Florida Health Proton Therapy Institute are here to provide you with support, information, and expertise.

Executive Team

Stuart Klein, MHA

Executive Director

Nancy Price Mendenhall, MD

Medical Director

Physicians

Julie A. Bradley, MD

Physician

Curtis Bryant, MD, MPH

Physician

Roi Dagan, MD, MS

Physician

Eric Brooks, MD

Physician

Randal Henderson, MD, MBA

Associate Medical Director

Adam L. Holtzman, MD

Physician

Daniel J. Indelicato, MD

Physician

Raymond B. Mailhot, MD, MPH

Physician

William M. Mendenhall, MD

Physician

R. Charles Nichols, Jr., MD

Physician

Paul Okunieff, MD

Physician

Michael Rutenberg, MD, PhD

Physician

Physicists

Mark Artz, PhD

Physicist

Wen Chien Hsi, PhD

Physicist

Soon Huh, PhD

Physicist

Perry Johnson, PhD

Physicist

Xiaoying Liang, PhD

Physicist

Maria Mamalui-Hunter, PhD

Physicist

Jiyeon Park, PhD

Physicist

Zhong Su, PhD

Physicist

Yawei Zhang, PhD

Physicist

Support Staff

Teena Burchianti, MSN, APRN, ANP-BC, OCN®

Radiation Oncology Nurse Practitioner

Robin Cacchio, RN, CCRP

Director of Research Services

Trevor Fleming

Director of Technical Services

Courtney Hayden

Patient Staging Coordinator

Kevin Kirby, CMD, RT (R)(T)

Director of Clinical Dosimetry

Carleen Marianek MSN, RN

Interim Director of Adult Nursing

Kathy McIntyre

Administrator of Billing Services

Christina Mershell

Business Development Coordinator

Holly Mostoller, PHR

Director of Human Resources

Kathy Murray

Director of Development

Heather Oakley, LCSW, OSW-C

Director of Social Services and Clinical Social Worker

Bradlee Robbert, FACHE, MHA, RT (R)(T)

Director of Operations

Amy Sapp, RN, BSN

Director of Pediatric Nursing

Lisa Ward

Patient Intake Director