Meet Our Providers

Boulder Neurosurgical & Spine Associates (BNA) is a premier provider for all types of brain and spinal disorders including both neurosurgical and orthopedic spine conditions. BNA physicians specialize in minimally invasive techniques and deliver a comprehensive and multidisciplinary approach in treating neck pain, back pain, tumors, athletic injuries, movement disorders and spinal deformities.

Alan T. Villavicencio, MD

Minimally Invasive & Complex Spine, Brain and Scoliosis Surgery
 

E. Lee Nelson, MD

Minimally Invasive & Complex Spine, Brain and Pituitary Tumor Surgery
 

Sharad Rajpal, MD

Minimally Invasive & Complex Spine and Brain Tumor Surgery
 

Kara Beasley, DO

Minimally Invasive & Complex Spine, DBS for Movement Disorders, Neuromodulations for Refractory Chronic Pain and Surgical Treatment of Epilepsy

David Shafer, MD

Minimally Invasive & Complex Spine, Brain, DBS for Movement Disorders and Surgical Treatment of Epilepsy

Andrew Bauer, MD

Minimally Invasive & Complex Spine, Brain and Endovascular Neurosurgery
 

Allan D. "Tripp" Nanney, III, MD

Minimally Invasive & Complex Spine and Brain
 

Sigita Burneikiene, MD

Research Director