Medical Director

• Alexios Carayannopoulos, DO, MPH  

Surgical Director

• Subu N. Magge, MD  

Neurosurgeons 

• Peter K. Dempsey, MD 
• Zoher Ghogawala, MD  
• Stefan S. Kim, MD  
• Subu N. Magge, MD 
• Haran Ramachandran, MD 

Orthopaedic Surgeon

• Bernard A. Pfeifer, MD  

Neurophysiologist

• Jay Shils, PhD

Physiatrists

• Sharon  Bassi, MD 
•  Alexios Carayannopoulos, DO, MPH  
• Arthur Lee, DO 
• James P. Spinelli Jr., DO  

Physician Assistants

• Kara M. Golden, PA-C
• Elizabeth A. Kirstein, PA-C
• Ran H. Ku, PA-C

Nurse Practitioners

• Gina C. Kolak, RN, NP
• David B. Melzack, RN, NP

Physical Therapists

• Sharon Cohen, PT, MS
• Phyllis Herron, PT
• Mary Murphy Capistran, DPT

Neuroradiologists

• Richard A. Baker, MD  
• Sami H. Erbay, MD  
• Carl A. Geyer, MD  
• Peter G. Hildenbrand, MD  
• Philip D. Kousoubris, MD  
• Grace M. Lee, MD  

Interventional Neuroradiologists

• In Sup Choi, MD  
• Seon Kyu Lee, MD, PhD  

Pain Management Physicians

• Kameel H. Garas, MD  
• Andrew G. Kowal, MD  

Administrative Director

• Susan M. Dignan