Orthopedics is the area of medicine specializing in the diagnosis and treatment of bone, joint, tissue, muscle, ligament and nerve disorders. In addition to treating general orthopedic conditions, VOA physicians offer subspecialties in foot and ankle conditions, sports medicine, joint replacement, spinal disorders and upper extremity conditions, including those in the shoulder, elbow and hand.

To read more about VOA's medical staff, please click on a physician or provider below or to the right.

General Orthopedics:

• Knee surgery
• Joint replacement surgery
• Shoulder surgery

Foot & Ankle Surgery:

Erik J. Novak, M.D., Ph.D.

Robert G. Veith, M.D.

Hand & Upper Extremity Surgery:

Traci G. Barthel, M.D.

John Howlett, M.D.

Niket Shrivastava, M.D.

Joint Replacement:

William P. Barrett, M.D.

Shoulder & Hand Surgery:

Craig T. Arntz, M.D.

Spine Surgery:

Christopher R. Howe, M.D.

Mark C. Remington, M.D., PhD



Jason H. Thompson, M.D.

Electrodiagnosis & Spinal Injections (Non-operative Care):

Kaya Y. Hasanoglu, M.D.

Occupational Medicine & Spine Disorders (Non-operative Care):

B. Daniel Chilczuk, M.D.

Sports Medicine:

Michael Allison, M.D., MPH

Physician Assistants:

Jana L. Flener, PA-C, OPA-C, COT
Melissa Hackbarth, PA-C, MPAS
Jess M. Meyer, PA-C
Chad C. Moloney, MS, PA-C
Andy Neubauer, PA-C
Wendy R. Nyland, MS, PA-C
Greg Parker, PA-C
Jordan J.P. Vieira, PA-C
Jamie Yee, PA-C