Niall O’Brien

Physical Therapist, Seattle Mariners


Education & Experience

Saint Louis University DPT Class of 2020
Ochsner Health Sports Residency Class of 2021
ATI Physical Therapy Upper Extremity Athlete Fellow 2023-24
Kansas City Royals Physical Therapy Fellow 24′
Began working in baseball in 2024

About Niall

Sports residency trained physical therapist at Ochsner Health. Former Upper Extremity Athlete Fellow at ATI Physical Therapy in conjunction with the Kansas City Royals. Strong interest in injury reduction and rehabilitation of the overhead athlete. Currently, a PT for the Seattle Mariners based at their spring training complex in AZ. Niall treats both MLB and MiLB athletes as they work to return to performance.

Niall is a peer reviewer for the Journal of Shoulder and Elbow Surgery(JSES) as well as taught/lectured to PT Students, SCS/OCS residents, and Upper Extremity Athlete Fellows.