Team Members

CyberKnife Directors

John J. Kresl, MD, PhD

CyberKnife Co-Director, Radiation Oncology

Randall W. Porter, MD

CyberKnife Co-Director, Neurosurgery
Director, Interdisciplinary Skull Base Program, Neurosurgery

Radiation Oncologists

David Brachman, MD

Medical Director, Radiation Oncology Department

Jonathan Ashman, MD, PhD

Radiation Oncologist

Christopher A. Biggs, MD, PhD

Radiation Oncologist

Burton L. Speiser, MD, MS, FACR

Co-Director, Barrow Gamma Knife Center

Neurosurgeons

Andrew G. Shetter, MD

Chairman, Section of Functional and Stereotactic Neurosurgery

F. David Barranco, MD

Neurosurgeon

Kris Alan Smith, MD

Medical Director, Gamma Knife

William L. White, MD

Director of Surgical Endocrinology
Medical Director, Barrow Pituitary Center

Cardiothoracic surgeons

Ross M. Bremner, MD, PhD

Surgical Director, Center for Thoracic Disease

Urologists

Adrian H. Feng, MD

Urologist

Lori A. Pinke, MD

Urologist

Neurotologists

C. Phillip Daspit, MD

Chief, Section of Neurotology

Mark J. Syms, MD

Otolaryngologist

Medical Physicists

Raymond F. Rodebaugh, PhD

Chief Medical Physicist

Rostem Bassalow, PhD

Medical Physicist

Patricia Rojas Castillo, MS

Medical Physicist

Elizabeth Rhoe, MS

Medical Physicist