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Robert J. O’Brien, MHS, PA-C

Contact Information

Robert J. O’Brien

MHS, PA-C

Assistant Clinical Professor

Physician Assistant Department

Robert J. O’Brien joined the physician assistant department faculty in January of 2022. He has practiced clinically in orthopaedic surgery, sports medicine, sports traumatology and joint reconstruction in New York City. His clinical work includes peri-operative management and first assisting within the operating room. O’Brien is responsible for overseeing the surgical rotation for clinical year students and is co-directing evidence-based medicine for didactic year students. He will also be involved in anatomy labs, physical exam education, and procedural labs.

His professional interests include sports injury prevention, surgical innovation, preventive medicine, evidence-based care and the effective integration of public health concepts into clinical medicine. He continues to remain involved in several research efforts focused on these areas.

He completed his undergraduate degree at the University of Richmond, studying leadership and medical humanities. He earned his master’s in health sciences from Drexel University in 2013. He is currently pursuing a doctoral degree in public health.

Professional Society

American Academy of Physician Assistants
Pi Alpha National Honor Society
Alpha Eta National Honor Society

Selected Publications

O'Brien, R., & Janosky, J. (2021). Anterior cruciate ligament injury. In JAAPA QRS REVIEW FOR PAS. chapter, Wolters Kluwer Medical.

O'Brien, R., & DiFelice, G. (2019). Acute femoral avulsion of ACL. In Knee arthroscopy: a case repository. chapter, Jaypee Brothers Medical Publishers (P) Ltd.

Vermeijden, H. D., van der List, J. P., O’Brien, R. J., & DiFelice, G. S. (2021). Primary repair of Anterior Cruciate Ligament injuries. JBJS Reviews, 9(5). https://doi.org/10.2106/jbjs.rvw.20.00174

Vermeijden, H. D., van der List, J. P., O'Brien, R., & DiFelice, G. S. (2020). Return to sports following arthroscopic primary repair of the anterior cruciate ligament in the adult population. The Knee, 27(3), 906–914. https://doi.org/10.1016/j.knee.2020.04.001

Vermeijden, H. D., van der List, J. P., O’Brien, R., & DiFelice, G. S. (2020). Patients forget about their operated knee more following arthroscopic primary repair of the Anterior Cruciate Ligament than following reconstruction. Arthroscopy: The Journal of Arthroscopic & Related Surgery, 36(3), 797–804. https://doi.org/10.1016/j.arthro.2019.09.041

Research Interests

Sports injury prevention, surgical innovation, preventive medicine, evidence-based care and the effective integration of public health concepts into clinical medicine. He continues to remain involved in several research efforts focused on these areas.

Specialization

Orthopaedics, Sports Medicine, Perioperative Care, Public Health

Doctorate of Public Health (DrPH), pending completion 2023
Walden University
Minneapolis, MN

Physician Assistant, Certified, Master of Health Science (MHS), 2011 – 2013
Drexel University
Philadelphia, PA

Bachelor of Arts (BA), Leadership Studies and Medical Humanities, 2004 – 2008
University of Richmond
Richmond, VA