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Featured Staff Member
Nancy Price Mendenhall, MD, FACR, FASTRO
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 disease, lymphomas and pediatric cancers.
Read Full BiographyExecutive Team
Stuart Klein, MHA
Executive Director
Nancy Price Mendenhall, MD, FACR, FASTRO
Medical Director
Perry Johnson, PhD
Director of Physics
Physicians
Julie A. Bradley, MD, MHCDS
Physician
Eric Brooks, MD, MHS
Physician
Curtis Bryant, MD, MPH
Physician
Roi Dagan, MD, MS
Physician
Randal Henderson, MD, MBA
Associate Medical Director
Daniel J. Indelicato, MD
Physician
Raymond B. Mailhot, MD, MPH
Physician
William M. Mendenhall, MD, FACR
Physician
Romaine Charles Nichols, Jr., MD
Physician
Paul Okunieff, MD
Physician
Nurse Practitioners
Teena Burchianti, MSN, APRN, ANP-BC, OCN®
Radiation Oncology Nurse Practitioner
Kerri Copeland Jarrell, APRN
Radiation Oncology Nurse Practitioner
Toni Ruffino, APRN
Radiation Oncology Nurse Practitioner
Physicists
Mark Artz, PhD
Physicist
Hardev Singh Grewal, PhD
Physicist
Soon Huh, PhD
Physicist
Maria Mamalui, PhD
Physicist
Jiyeon Park, PhD
Physicist
Mohammad Saki, PhD
Physicist
Emma Viviers, PhD
Physicist
Twyla Willoughby, PhD, FAAPM
Physicist
Yawei Zhang, PhD
Physicist
Support Staff
Walt Moore
Chief Financial Officer
Tim Buist
Director of IT
Robin Cacchio, RN, CCRP
Director of Research Services
Trevor Fleming
Director of Technical Services
Kasey Heilman
Director of Development
Jenna B. Hobkirk, BS
Director of Administrative Services
Kevin Kirby, CMD, RT (R)(T)
Director of Clinical Dosimetry
Carleen Marianek, MSN, RN
Co-Director of Adult Nursing Services
Christina Mershell
Business Development Coordinator
Holly Mostoller, PHR SHRM-CP
Director of Human Resources
Heather Oakley, MSW, LCSW, OSW-C
Director of Social Services & Clinical Social Worker
Darci Peistrup
Director of Billing Services
Bradlee Robbert, FACHE, MHA, RT (R)(T)
Director of Operations
Amy Sapp, MSN, RN
Director of Pediatric Nursing
Abby Senterfitt, BSN, RN
Co-Director of Adult Nursing Services
Jason Smith
Director of Facilities
Lisa Ward
Patient Intake Director
Executive Team
Stuart Klein, MHA
Executive Director
Nancy Price Mendenhall, MD, FACR, FASTRO
Medical Director
Perry Johnson, PhD
Director of Physics
Physicians
Julie A. Bradley, MD, MHCDS
Physician
Eric Brooks, MD, MHS
Physician
Curtis Bryant, MD, MPH
Physician
Roi Dagan, MD, MS
Physician
Randal Henderson, MD, MBA
Associate Medical Director
Daniel J. Indelicato, MD
Physician
Raymond B. Mailhot, MD, MPH
Physician
William M. Mendenhall, MD, FACR
Physician
Romaine Charles Nichols, Jr., MD
Physician
Paul Okunieff, MD
Physician
Nurse Practitioners
Teena Burchianti, MSN, APRN, ANP-BC, OCN®
Radiation Oncology Nurse Practitioner
Kerri Copeland Jarrell, APRN
Radiation Oncology Nurse Practitioner
Toni Ruffino, APRN
Radiation Oncology Nurse Practitioner
Physicists
Mark Artz, PhD
Physicist
Hardev Singh Grewal, PhD
Physicist
Soon Huh, PhD
Physicist
Maria Mamalui, PhD
Physicist
Jiyeon Park, PhD
Physicist
Mohammad Saki, PhD
Physicist
Emma Viviers, PhD
Physicist
Twyla Willoughby, PhD, FAAPM
Physicist
Yawei Zhang, PhD
Physicist
Support Staff
Walt Moore
Chief Financial Officer
Tim Buist
Director of IT
Robin Cacchio, RN, CCRP
Director of Research Services
Trevor Fleming
Director of Technical Services
Kasey Heilman
Director of Development
Jenna B. Hobkirk, BS
Director of Administrative Services
Kevin Kirby, CMD, RT (R)(T)
Director of Clinical Dosimetry
Carleen Marianek, MSN, RN
Co-Director of Adult Nursing Services
Christina Mershell
Business Development Coordinator
Holly Mostoller, PHR SHRM-CP
Director of Human Resources
Heather Oakley, MSW, LCSW, OSW-C
Director of Social Services & Clinical Social Worker
Darci Peistrup
Director of Billing Services
Bradlee Robbert, FACHE, MHA, RT (R)(T)
Director of Operations
Amy Sapp, MSN, RN
Director of Pediatric Nursing
Abby Senterfitt, BSN, RN
Co-Director of Adult Nursing Services
Jason Smith
Director of Facilities
Lisa Ward
Patient Intake Director
