Get To Know Us

Our Team of Qualified Physical Therapists

Dealing with health issues can be a difficult situation. You shouldn’t have to go it alone. The Catalyst Physical Therapy team of certified, highly skilled, and experienced physical therapists always has the patients’ best interests and well-being at heart. Meet the faces that are running our Physical Therapy Clinic, and schedule an appointment today.

Rebekah Stamp, MSPT

Owner & Physical Therapist

After receiving a degree in Communications from the University of Iowa , Rebekah furthered her education at the University of Montana, earning her master’s degree in Physical Therapy in 1999.

Rebekah is predominantly an industrial physical therapist, working with employers and workers to decrease the incident of injuries on the job and get employees back to work more quickly.   She also specializes in orthopedic rehabilitation and vertigo.

Outside the office, Rebekah loves spending time with her husband and kids. The family of four likes to spend their weekends hiking, camping, skiing, and following the kids’ competitive soccer, swim and wrestling teams. Rebekah is also heavily involved in the community, serving as the Vice-President of the Bitterroot Swim Team, a board member of the Hamilton Middle School PAC, a member of the Bitterroot Valley Chamber of Commerce LEADS group, and of the Missoula Businesswomen’s Network.

Rebekah has a wonderful reputation in the Bitterroot Valley as a caring and loyal friend and colleague, and as a highly effective and personable physical therapist.

Dr. Angela Saporita, DPT, OCS, FMS

Physical Therapist & Clinic Manager

Angela earned her Doctorate of Physical Therapy in 2011 at the University of Missouri. She moved to Hamilton in 2011 and has enjoyed working with Bitterroot Valley residents ever since. In 2014, Angela achieved national recognition by becoming board certified as an Orthopedic Clinical Specialist (OCS) by the American Physical Therapy Association. This certification demonstrates an advanced level of knowledge, experience, and skill in orthopedics. Only 4% of physical therapists nationwide have earned this accreditation. Angela has also completed advanced training in functional dry needling through Kinetacore. She is a certified expert in the Functional Movement Screen (FMS) and provides complimentary consults to the public.

Angela’s passion for injury prevention combined with her experience as a PT and Functional Movement Specialist led her to complete 200 hours of yoga teacher training in 2016. She is now a certified yoga instructor and enjoys weaving fibers of yoga into her physical therapy program as well as incorporating anatomy and functional movement into her yoga classes.

Angela enjoys exploring the Bitterroot Mountains with her husband, Dan, and spends her free time fly fishing, playing soccer, snowboarding, and hiking.

Dr. Caleb Kemp, DPT

Physical Therapist

Caleb graduated from the University of Montana Physical Therapy program with a Doctorate of Physical Therapy in 2018. Prior to PT school, his background was in exercise science, health and human performance, and gerontology. His specialties include spinal and extremity joint mobilization and high velocity thrust technique, pain neuroscience, running video assessment and injuries, and general orthopedics. He believes in, and practices by, the three pillars of superior patient care; patient preference, best evidence practice, and clinical expertise.

Caleb was born and raised in Helena, MT and has resided in the Bitterroot Valley since 2000. He and his wife are currently raising their son and daughter in Hamilton. They enjoy biking, skiing, boating, hiking, fishing, camping, and playing bluegrass together. Caleb worked as a timber framer and fine furniture maker in the Bitterroot for 12 years before returning to school to achieve a Doctor of Physical Therapy degree.

Dr. Amy Messer, DPT

Physical Therapist

Amy received her Doctor of Physical Therapy education at Eastern Washington University, graduating in 2010. Following graduation, Amy worked in a variety of settings throughout the United States as a traveling PT. She brings a wide range of experiences back with her and looks forward to serving the community. Amy believes in providing evidence-based care and tailoring physical therapy services to address the unique goals of each patient.  As a former collegiate athlete, Amy understands the importance of injury prevention and successful rehabilitation. Professional areas of interest include post-surgical care, sports rehabilitation including injury prevention and treatment of overuse injuries. 

While not working, Amy enjoys spending time with friends and family. You'll find her enjoying the beauty of the Bitterroot with her husband and two dogs - rock climbing, skiing, hiking and gardening.


Angie Grimes

Front Office Manager

Angie started her career at the Western Montana Clinic, where she worked for 12 years before she and her husband relocated to Hamilton in 1997.   After having two children, Angie began working the front office at Catalyst Physical Therapy in 2007 where she handles and maintains the records, and works with the public. She has a warm smile for everyone who comes through the door and is always kind and professional.

Angie loves to spend her free time with her husband and kids, and enjoys sharing in her children’s sporting activities which include soccer, tennis, and skiing. Travel and shopping are favorite pastimes and some of Angie’s most memorable weekend jaunts were with her husband during their annual trips to Bloomsday in Spokane. Angie enjoys spending time outdoors with her dogs, and loves photography, scrapbooking, card making, and watching Seattle Sounders soccer.

As the first and last person our clients see at Catalyst Physical Therapy, Angie is worth her weight in gold.

Gina Williams

Front Office Assistant

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