Therapist Pages

Martha Fair Williams, PT, MS


University of Oklahoma
• Bachelor of Science
Columbia University
 • Physical Therapy Degree
University of California - Davis
• Masters in Exercise Science


Early in her career Martha was an acute care hospital physical therapist both in University and Community hospitals. Since 1990 she has practiced outpatient physical therapy at SportRehab . Martha has had additional training in Temporalmandibular joint treatments, Dance medicine, hand therapy and wound care. She is a certified Pilates instructor since 1994 having completed three long term courses including BASI and Polestar.

Katherine Voepel, MScPT


University of California - Davis 
 • Bachelor of Arts Exercise Biology 2011 
Robert Gordon University
 • Masters of Science in Physiotherapy 2014


Katherine received her Masters in Physiotherapy from Robert Gordon University in Aberdeen, Scotland in 2014. She specializes in outpatient orthopedic physical therapy with emphasis on rehabilitation for runners, gait analysis, muscle imbalance, and SIJ dysfunction. She has advanced training in differential diagnosis of ankle and foot pathology and runner’s rehabilitation.

She previously worked in a variety of neurological rehabilitation hospital settings including stroke rehab, and both pre- and postoperative rehab for spine and brain surgery.  Kat believes that the key to successful rehabilitation involves individualized, one-on-one care.  She strives to  address the problem, not only the symptoms, to ensure true recovery.  As an avid runner Kat enjoys running with the Davis Golden Valley Harriers.  Her other interests include travelling, backpacking, cross country skiing, and spending time outdoors.

 Julie Miesfeld, DPT


University of Wisconsin-Madison
 • Bachelor of Science Kinesiology 2006
Marymount University
 • Doctor of Physical Therapy 2010


Julie has worked in various outpatient orthopedic settings for the past 8 years.  She has taken extensive coursework in gait training and rehab for runners, which is complemented by her 5+ years of working in running shoes stores across the country. 

Julie has treated a wide variety of patients and places high value on one-on-one treatment.  Her philosophy includes treating the whole patient, not just the injured body part.  She enjoys treating sacroiliac dysfunction, lower extremity injuries, and shoulder injuries. She also treats women's health issues, pediatric gross motor delay and torticollis, and post-conconcussion syndrome.  Julie is a dedicated runner/triathlete and spends her spare time with her husband and four daughters.

Tom Kesinger, PT


University of California Davis
 • Bachelor of Science in Child Development
University of California San Francisco
 • Bachelor of Science in Physical Therapy


Over the past 37 years, Tom has enjoyed working to meet the patients' needs in an outpatient setting.  In 1979, he founded Kesinger Physical Therapy Inc., which eventually encompassed five outpatient clinics in the Sacramento area.  He sold his clinics to a large National firm and continued working for them until he joined the therapists at SportRehab in 2013.  

He enjoys working with a variety of patients and have success working with back and neck injuries. Helping the older population regain and maintain their independence is a challenge he enjoys as a physical therapist


Beth Abbata, Office Manager

Beth has spent the last 34 years of her career working in domestic and international collections and credit analysis. She has worked in the manufacturing, environmental, pharmaceutical, and medical industries. She also owned a publishing & design company for 10 years. Beth was raised in northern Minnesota but has lived from coast to coast and everywhere in between. Her travels have introduced her to a world of diverse individuals, which has expanded her own ideas and life. In her spare time she enjoys reading, traveling, and spending time with her grandchildren.

Brandon Delle Donne, PT Aide

Brandon has 10 years experience in the physical therapy arena and is well versed in numerous areas of the field. He has ample experience working with athletes, geriatrics, and post-operative patients. Originally a Southern California native, he graduated from CSUF with a B.S. in Kinesiology, Clinical Exercise Science and looks to continue his education in pursuit of a doctorate in physical therapy. His interests include playing softball, racquetball, traveling, scuba diving and drinking a good BEER...or two!

Christina Matassa, PT Aide

 While interning at Sport Rehab Physical Therapy clinic, Christina was introduced to Pilates. Since then she has completed an intensive 500-hour Comprehensive Teacher Training Certification with BASI Pilates and hasn't looked back! She has been teaching for 3 years and loves it! She graduated from UCSB with a B.A. in Environmental Studies and a Minor in Italian. Her interests include yoga, paddle boarding, hiking, and playing with her adorable Westie, Pilot.