Board of Directors

National Association for Proton Therapy (NAPT) is a non-profit organization dedicated to promoting the use of proton therapy as an advanced and effective form of cancer treatment. The NAPT Board of Directors plays a pivotal role in guiding the organization’s mission, vision, and strategic direction. The board is composed of distinguished professionals from various roles within the field of proton therapy, each bringing their expertise, experience, and commitment to advancing proton therapy and supporting cancer patients.

Executive Committee

Steven Frank, MD, FASTRO

Executive Director,
MD Anderson Proton Therapy Center

Kristin Heath, DBA, MBA, MHA

Executive Director,
UF Health Proton Therapy Institute

Vickie Miller, RN, MN, MBA

Operations Administrator,
The Mayo Clinic – Arizona

Tom Welch

Tom Welch

President
Oklahoma Proton Center

Jeffrey Bradley, MD

Professor of Radiation Oncology
University of Penn

Michael Butkus, PhD

Co-Medical Director/Head of Proton Physics
University of Miami

Andrew Chang, MD

Medical Director, Pediatrics
California Protons Cancer Therapy Center

Judy Chatigny

Executive Director
Loma Linda University

Ashish K. Chawla, MD

Ashish K. Chawla, MD

Chairman Proton Therapy
Inova Schar Cancer Institute

Isabelle Choi, MD, FACRO

Director of Research
New York Proton Center

Eric Cleveland

Administrator
Department of Radiation Oncology
Mayo Clinic Rochester

James Gray, MD

James Gray, MD

Medical Director
Tennessee Oncology Proton Center

Steven Holan, MBA

Vice President, Operations
Baptist Health South Florida

Darrin Kistler

Senior Director, Radiation Services
The University of Kansas

Randall K McClure

Director of Proton Therapy
Fred Hutch Cancer Center

Mark McDonald, MD

Mark McDonald, MD

Medical Director
Emory Proton Therapy Center

Tomain Murphy

Vice President, Radiation Oncology and Ancillary Services Operations
Levine Cancer – Atrium Health

Elizabeth Nichols, MD

Elizabeth Nichols, MD

Associate Professor
Maryland Proton Treatment Center

Stephanie Perkins, MD

Director, S. Lee Kling Proton Therapy Center
Siteman Cancer Center

Helen Shih, MD

Massachusetts General Hospital
Medical Director, MGH Proton Therapy Centers

Board Advisors

Leonard Arzt

Board Member, Emeritus / Founder
National Association for Proton Therapy

Minesh Mehta, MD

Deputy Director – Chair, Radiation Oncology
Miami Cancer Institute, Baptist Health South Florida

Jason Caron, JD

Partner, Healthcare & Life Sciences Practice Group
Latham & Watkins LLP

NAPT STAFF

Jennifer Maggiore, LCSW

Executive Director

Sarah Galen

Director of Education

Michael Barron

Policy & Research Associate

© 2025 National Association for Proton Therapy (NAPT)