Mark O'Brien

Mark O'Brien, Jr. currently serves as an Inside Sales Representative for both Sagamore Sales & Marketing, Inc. and Johnson & Johnson MedTech, specializing in knee injection sales, including products like Orthovisc and Monovisc Hyaluronic Knee injections. Prior experience includes a role as a Unit Coordinator at Beth Israel Deaconess Medical Center, where Mark facilitated unit operations and served as a liaison among patients, visitors, and clinicians. Earlier positions include working as a Deli Associate at Shaw's Supermarkets and as a Hockey Referee for USA Hockey, managing youth games and resolving conflicts. Mark holds a Bachelor of Science degree in Biomedical Sciences from the University of New Hampshire, completed in May 2023, and graduated with a high school diploma from Mansfield High School in June 2019.