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.

Featured Staff Member

Nancy Price Mendenhall, MD
Nancy Price Mendenhall, MD

Medical Director

A University of Florida College of Medicine faculty member since 1985, Dr. Mendenhall served as the chair of the Department of Radiation Oncology from 1993-2006. She has more than 20 years of experience and specializes in the areas of breast cancer, Hodgkin's disease, lymphomas and pediatric cancers.

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Executive Team

Stuart Klein, MHA

Stuart Klein, MHA

Executive Director

Nancy Price Mendenhall, MD

Nancy Price Mendenhall, MD

Medical Director

Physicians

Julie A. Bradley, MD

Julie A. Bradley, MD

Physician

Eric Brooks, MD

Eric Brooks, MD

Physician

Curtis Bryant, MD, MPH

Curtis Bryant, MD, MPH

Physician

Roi Dagan, MD, MS

Roi Dagan, MD, MS

Physician

Randal Henderson, MD, MBA

Randal Henderson, MD, MBA

Associate Medical Director

Adam L. Holtzman, MD

Adam L. Holtzman, MD

Physician

Daniel J. Indelicato, MD

Daniel J. Indelicato, MD

Physician

Raymond B. Mailhot, MD, MPH

Raymond B. Mailhot, MD, MPH

Physician

William M. Mendenhall, MD

William M. Mendenhall, MD

Physician

Romaine Charles Nichols, Jr., MD

Romaine Charles Nichols, Jr., MD

Physician

Paul Okunieff, MD

Paul Okunieff, MD

Physician

Michael Rutenberg, MD, PhD

Michael Rutenberg, MD, PhD

Physician

Physicists

Mark Artz, PhD

Mark Artz, PhD

Physicist

Wen Chien Hsi, PhD

Wen Chien Hsi, PhD

Physicist

Soon Huh, PhD

Soon Huh, PhD

Physicist

Perry Johnson, PhD

Perry Johnson, PhD

Interim Director of Physics

Maria Mamalui-Hunter, PhD

Maria Mamalui-Hunter, PhD

Physicist

Jiyeon Park, PhD

Jiyeon Park, PhD

Physicist

Yawei Zhang, PhD

Yawei Zhang, PhD

Physicist

Support Staff

Tim Buist

Tim Buist

Director of IT

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

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

Radiation Oncology Nurse Practitioner

Robin Cacchio, RN, CCRP

Robin Cacchio, RN, CCRP

Director of Research Services

Trevor Fleming

Trevor Fleming

Director of Technical Services

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

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

Director of Clinical Dosimetry

Carleen Marianek, MSN, RN

Carleen Marianek, MSN, RN

Director of Adult Nursing

Christina Mershell

Christina Mershell

Business Development Coordinator

Holly Mostoller, PHR SHRM-CP

Holly Mostoller, PHR SHRM-CP

Director of Human Resources

Kathy Murray

Kathy Murray

Director of Development

Heather Oakley, LCSW, OSW-C

Heather Oakley, LCSW, OSW-C

Director of Social Services and Clinical Social Worker

Polly Redding, MBS, CPC, CHONC

Polly Redding, MBS, CPC, CHONC

Director of Billing Services

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

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

Director of Operations

Amy Sapp, MSN, RN

Amy Sapp, MSN, RN

Director of Pediatric Nursing

Jason Smith

Jason Smith

Director of Facilities

Lisa Ward

Lisa Ward

Patient Intake Director