Meet Our Physical Therapy & Occupational/Hand Therapy Team

Jim Hosker graduated with his BS in Physical Therapy from Northeastern University and continued his education by receiving his Doctorate of Physical Therapy from Creighton University in 2002. He has demonstrated his career-long learning through continuing education and certifications. Jim has received his Orthopedic Clinical Specialist, Certified Manual Therapist, and was involved with the Specialization Academy of Content Expert for the ABPTS.

Jim is our Director of Rehabilitation at Orthopedic New England and provides treatment in our Natick office. He has built a strong reputation as a premier physical therapist in the area. Jim utilizes dry needling and manual therapy to maximize the effectiveness of his rehab programs. He enjoys treating injuries related to the spine, knee, and shoulder, along with fibromyalgia. Jim feels strongly about having each patient fully understand their condition and the steps needed to improve.

Jessica Cesario graduated from the State University of New York at Buffalo in 1996 with a BS in Occupational Therapy. She continued her advanced professional study of Hand and Upper Extremity Rehabilitation at Tufts University. She earned her certification in Hand Therapy in 2010. Before joining Orthopedics New England, Jessica worked at New England Baptist Hospital in Boston for 14 years and a private outpatient clinic in Stoughton, MA, for nine years.

Jessica is experienced in custom splinting and treating various upper extremity conditions, including fractures, sprains and strains, arthritis, tendinopathies, tendon and nerve repairs, and work and sports-related injuries. She is knowledgeable in advanced surgical techniques and post-operative therapy programs. She stays up to date with practice within the field of hand therapy through professional development and continuing education courses. Jessica implements individualized patient treatment plans with specific goals in mind to return each patient to the activities that are most important to them.

Eric Mentzer earned his doctorate in physical therapy from UMass Lowell in 2018. He enjoys helping people return to what matters after an injury. Eric employs an education-based approach to facilitate patient agency, giving them the skills and knowledge they need to get back on track. He has a keen interest in combat sports, including MMA, boxing, and jiu-jitsu. Eric has worked with a wide range of populations, including but not limited to orthopedic and neurological disorders, across all ages.

Lauren Corliss graduated from Quinnipiac University in 2015 with her Doctorate of Physical Therapy Degree. Since then, Lauren has worked in the outpatient physical therapy setting treating patients with varying orthopedic and neuromuscular injuries. She has a passion for treating patients of all ages, with a goal of getting her patients back to the activities they enjoy, pain free. Lauren has a special interest in post-operative and sports rehabilitation. She is also certified in dry-needling. Outside of work, Lauren enjoys running, hiking, and spending time with her family and friends. 

Christine St. Martin has been a Physical Therapist Assistant for ten years. She found herself going to physical therapy years ago, which inspired her to become a PTA to guide patients to achieve a better quality of life. Christine is a MassBay Community College graduate and passionate about helping patients of all ages and diagnoses reach their rehabilitation goals. Christine has a special interest in spine and knee orthopedic injuries. Outside the clinic, Christine loves running, hiking, reading, and spending time with her family and friends.