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Featured Staff Member
Roi Dagan, MD, MS
Physician
Dr. Roi Dagan is an Associate Professor in the Department of Radiation Oncology at the University of Florida College of Medicine. He completed his medical training and residency at the University of Florida, College of Medicine and was Chief Resident Physician from 2011-2012. Dr. Dagan is the physician lead for the head and neck program and the ocular tumor program at the UF Health Proton Therapy Institute.
Read Full BiographyExecutive Team
Kristin A. Heath, DBA, MBA, MHA
Executive Director
Nancy Price Mendenhall, MD, FACR, FASTRO
Medical Director
Perry Johnson, PhD
Director of Physics
Physicians
Julie A. Bradley, MD, MHCDS
Physician
Curtis Bryant, MD, MPH
Physician
Roi Dagan, MD, MS
Physician
Daniel J. Indelicato, MD
Physician
Samuel Jean-Baptiste, MD, MS
Physician
William M. Mendenhall, MD, FACR
Physician
Romaine Charles Nichols, Jr., MD
Physician
Lucas Gomes Sapienza, MD, PhD
Physician
Nurse Practitioners
Teena Burchianti, MSN, APRN, ANP-BC, OCN®
Radiation Oncology Nurse Practitioner
Jacey Hebert, MSN, APRN, FNP-BC™
Radiation Oncology Nurse Practitioner
Kerri Copeland Jarrell, APRN, MSN AGCNP-BC
Radiation Oncology Nurse Practitioner
Physicists
Hardev Singh Grewal, PhD
Physicist
Zuofeng Li, DSc, DABMP, FAAPM
Physicist
Maria Mamalui, PhD
Physicist
Jiyeon Park, PhD
Physicist
Mohammad Saki, DSc PhD
Physicist
Twyla Willoughby, PhD, FAAPM
Physicist
Mark J. Zakhary, PhD
Physicist
Yawei Zhang, PhD
Physicist
Support Staff
Vivek Badisa, M. Acc., CPA
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
Carey Lawing, CCLS
Child Life Specialist
Christina Mershell
Business Development Coordinator
Holly Mostoller, PHR SHRM-CP
Director of Human Resources
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
Director of Adult Nursing Services
Jason Smith
Director of Facilities
Tamara Sorrye, LMHC-QS
Director of Social Services
Lisa Ward
Patient Intake Director
Executive Team
Kristin A. Heath, DBA, MBA, MHA
Executive Director
Nancy Price Mendenhall, MD, FACR, FASTRO
Medical Director
Perry Johnson, PhD
Director of Physics
Physicians
Julie A. Bradley, MD, MHCDS
Physician
Curtis Bryant, MD, MPH
Physician
Roi Dagan, MD, MS
Physician
Daniel J. Indelicato, MD
Physician
Samuel Jean-Baptiste, MD, MS
Physician
William M. Mendenhall, MD, FACR
Physician
Romaine Charles Nichols, Jr., MD
Physician
Lucas Gomes Sapienza, MD, PhD
Physician
Nurse Practitioners
Teena Burchianti, MSN, APRN, ANP-BC, OCN®
Radiation Oncology Nurse Practitioner
Jacey Hebert, MSN, APRN, FNP-BC™
Radiation Oncology Nurse Practitioner
Kerri Copeland Jarrell, APRN, MSN AGCNP-BC
Radiation Oncology Nurse Practitioner
Physicists
Hardev Singh Grewal, PhD
Physicist
Zuofeng Li, DSc, DABMP, FAAPM
Physicist
Maria Mamalui, PhD
Physicist
Jiyeon Park, PhD
Physicist
Mohammad Saki, DSc PhD
Physicist
Twyla Willoughby, PhD, FAAPM
Physicist
Mark J. Zakhary, PhD
Physicist
Yawei Zhang, PhD
Physicist
Support Staff
Vivek Badisa, M. Acc., CPA
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
Carey Lawing, CCLS
Child Life Specialist
Christina Mershell
Business Development Coordinator
Holly Mostoller, PHR SHRM-CP
Director of Human Resources
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
Director of Adult Nursing Services
Jason Smith
Director of Facilities
Tamara Sorrye, LMHC-QS
Director of Social Services
Lisa Ward
Patient Intake Director
