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.


Jennifer Czinsky, PA-C

Physician Assistant

BA, University of Arizona
MMS – PA, Midwestern University

She is board certified since 2011 and joined Spine & Scoliosis Specialists.


Carolyn Avila-Duran, PA-C

Physician Assistant

BS, University of Florida
MSM, Wake Forest University School of business
MMS – PA, Wake Forest University School of Medicine

She is board certified and joined Spine & Scoliosis Specialists.


Sara Tomlinson, PA-C

Physician Assistant

BS, The College of Saint Scholastica
MPAS, High Point University

She is board certified and joined Spine & Scoliosis Specialists.