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Cayce Adam Onks, D.O.

Assistant Professor, Family and Community Medicine and Orthopaedics and Rehabilitation

Office Location

Penn State Hershey Medical Group Palmyra
941 Park Drive
Palmyra, PA 17078
Tel: 800-243-1455 / 717-838-6305 Fax: 717-838-5332


Family Medicine Primary Care Sports Medicine

Patient Services Provided

Outpatient and Inpatient Family Medicine Sports Medicine Care for Athletic Injuries of Any Age Sports-Related Concussion Management Ultrasound Guidance for Musculoskeletal-Related Procedures Management of Medical Problems in Athletes (including athletic populations)

Biographical Information

Cayce A. Onks, D.O., M.S. started his career in Sports Medicine as a Certified Athletic Trainer following graduation from The University of Tennessee with a degree in Exercise Science and a Master’s Degree in Athletic Training from Ohio University. After working in various positions over a four year period, he returned to school to graduate from Philadelphia College of Osteopathic Medicine (PCOM) in 2008. He completed an osteopathic internship through PCOM and the Crozer-Keystone Health System in Philadelphia, as well as his Family Medicine Residency from Wake Forest University in Winston-Salem, North Carolina. He then completed his Sports Medicine Fellowship training at Penn State Milton S. Hershey Medical Center in State College, PA. Dr. Onks is currently an Assistant Professor in the Departments of Family and Community Medicine and Orthopaedics and Rehabilitation. He serves as team physician for the Hershey Bears Hockey Club, Lebanon Valley College, and Lebanon High School.  His practice includes inpatient and outpatient family medicine and sports medicine clinics in which ultrasound guided injections are utilized.  He enjoys fishing, golfing, the outdoors, and spending time with family and friends. He lives with his wife and children.

To schedule a Family Medicine appointment with Dr. Onks in Palmyra, see office location above.

To schedule a Primary Care Sports Medicine appointment with Dr. Onks in Camp Hill (3025 Market Street, Entrance B) or Hershey (30 Hope Drive, Entrance B), please call 717-531-5638.

Professional Education

Fellowship, Sports Medicine, Milton S. Hershey Medical Center (2012) Residency, Family Medicine, Wake Forest University Bapist Medical Center (2011) Internship, Transitional, Philadelphia College of Osteopathic Medicine (GME) (2009) D.O., Medicine, Philadelphia College of Osteopathic Medicine (Pennsylvania) (2008)

Research Interests

Functional Movement Screen
Injury and Illness Prevention

Academic Interests

Clinical Teaching, Including the Musculoskeletal Exam


Onks C, Pauli E.
Cholelithiasis and Cholecystitis Apr 2014
Onks C, Wawrzyniak, J.
The Physical Therapy Prescription Dec 2013
Onks C, Billy G.
The Evaluation and Treatment of Cervical Radiculopathy Dec 2013

Honors and Awards

Junior Faculty Project Support Award (2014)