Physician Assistants 

Our Physician Assistants (PAs) have advanced training and extensive experience in the diagnosis and treatment of spinal disorders. They work closely with our physicians, both in the office and in the operating room. They often provide the initial evaluation and order the appropriate diagnostic tests for patients, enabling us to expedite their care. Our PAs also spend extra time with patients, providing education and follow-up care. They are qualified to perform office procedures and renew medications under the supervision of our doctors.

Colleen P. Mahar, PA-C

Colleen P. Mahar, PA-C

Physician Assistant

BS, SUNY Brockport
MS, Indiana State University
PA, Albany Medical College
Fellowship, Orthopaedics
She is board-certified and has worked as a PA with Dr. Cohen since 2002.


Allison VanDeMoere

Allison VanDeMoere, PA-C

Physician Assistant

BS, MS, & PA, Drexel University

She is board-certified and joined Spine & Scoliosis Specialists.


James Burns, PA-C

Physician Assistant

BS, Elon University
MS, The University of Texas-Austin
PA, East Carolina University

He is board-certified and joined Spine & Scoliosis Specialists.


Jessica Zanetto, PA-C

Physician Assistant

BS & MS, UNC-Greensboro
PA, Campbell University

She is board-certified and joined Spine & Scoliosis Specialists.