Physical Therapy Team


Jennifer L Johnson, PT, MPT

Director of Physical Therapy

Jennifer L Johnson, PT, MPT

Jennifer brings over ten years experience in orthopedic manual physical therapy to OSI. She has attended numerous continuing education courses to further broaden her manual therapy skill set and utilize evidence based practice to improve patient quality of life. Jennifer has extensive experience treating patients with a wide variety of diagnoses, including post operative conditions, complex spinal disorders, and conservative management of orthopedic conditions. Jennifer is a graduate of Chapman University, receiving her Master of Physical Therapy in 2001. She graduated with High Honors from Whittier College, earning a Bachelor of Arts in Physical Education and Recreation- Pre Physical Therapy Emphasis. She values spending time with her family and enjoys watersports, boating, and tennis.

Jennifer and the entire physical therapy staff strive to work closely with each physician at OSI to provide the most comprehensive, quality healthcare to our patients.

Kristine Boyle-Walker, MPT, OCS, ATC, CHT

Assistant Director of Physical Therapy

Kristine L Boyle-Walker, MPT, OCS, CHT, ATC

Kristine graduated from Chapman University receiving her Master of Physical Therapy degree in 1994; and graduated from Cal State Long Beach with a bachelor’s degree in Physical Education - concentration in Athletic Training in 1990. She is a Board Certified Orthopedic Clinical Specialist, a Certified Hand Therapist, and a Certified Athletic Trainer. Her broad experience on the athletic field, as well as, in the clinic allows her to draw on a variety of treatment options in treating orthopedic patients. Serving as a professor at Cal State Fullerton and a frequent lecturer allows her to keep abreast of current assessment and treatment techniques. She values spending her free time with her family and enjoys watersports, skiing, mountain biking and hiking.

Katrina Parsons, MPT, OCS

Katrina Parsons PT, MPT

Katrina graduated from Cal State Long Beach with a Master’s degree in Physical Therapy in 2009 and went on to earn her Orthopaedic Clinical Specialist certification. She has worked in a variety of outpatient facilities from sports clinics to women’s health. Since 2014 she has applied her experiences as a multiple-sport athlete to the patients at Orthopaedic Specialty Institute. She specializes in movement dysfunction and concussion management and loves any challenge a patient brings. Aside from work she lives for playing outdoors, traveling and spending time with friends. She is currently active in Crossfit, mountain biking, SUP and hiking.

Louis Taylor III, MPT

Louis Taylor

Coming soon

Marie Theilen PT, DPT

Marie Theilen

coming soon