Learn about our Team

We are a team of professionals who are dedicated to restoring your movement

Gregory C. Huefner

Gregory C. Huefner


Gregory Huefner, MSPT received his Bachelor‘s Degree in Chemistry and Biology from Gannon University (Erie, Pennsylvania) in 1989 and his Master’s Degree in Physical Therapy in 1992 from Washington University Medical School (St. Louis, Missouri). Greg has an extensive background in Sports Medicine and Orthopedic Physical Therapy. Prior to that, Greg worked for the United States Public Health Service at the Yakama Indian Health Center. Greg’s professional experience also includes positions at the Center for Sports Medicine at the University of Pittsburgh (Pittsburgh, Pa.), the Center for Health Promotions (Portland, Maine), and Sports Medicine Fairbanks (Fairbanks, Alaska). For seven years, Greg worked for Pro-Motion Physical Therapy in Yakima.

In addition, Greg has continued to expand his expertise in manual therapy, functional evaluation and treatment techniques, and biomechanics. Greg also has extensive training in lymphedema therapy, management of the diabetic foot, and ski boot fitting.

Outside of physical therapy, Greg’s interests include kayaking, skiing, running and hiking. Greg is also a member of White Pass Ski Patrol.

Welcome! Our dedicated team is looking forward to working with you!

Sheryl Fairchild

Sheryl Fairchild


Sheryl Fairchild, DPT, ATC, CSCS received her Bachelor‘s and Master’s Degrees in Physical Education/Sports Medicine from Humboldt State University (Arcata, California) in 1990 and 1993 and her Doctor of Physical Therapy Degree from A. T. Still University/Arizona School of Health Sciences (Mesa, Arizona) in 2008. Sheryl’s background is primarily in sports medicine, orthopedics, and vestibular rehabilitation. Prior to receiving her physical therapy degree, Sheryl worked as a Certified Athletic Trainer for four years in Fairbanks, Alaska at Sportsmedicine Fairbanks and Lathrop High School, one year in Yakima, Washington at Westside Physical Therapy, and 7 years at Healthsouth and West Valley High School in Fairbanks, Alaska.

Outside of physical therapy, Sheryl’s interests include hiking, backpacking, camping, snowshoeing, and skiing.

Mary Riehl

Mary Riehl


Mary Riehl, MSPT, a Yakima native, graduated from Eisenhower high school in 1985 and attended Washington State University where she earned a Bachelor of Science in Cell Biology. She received her Physical Therapy degree form Northwestern University School of Medicine, Chicago, IL in 1990 and then went on to specialize in Orthopedic Physical Therapy at the Krannert Graduate School of Physical Therapy-University of Indianapolis, receiving her Masters Degree, Orthopedic Emphasis in 1993. Mary was a Physical Therapist for Methodist Hospital of Indiana (Indianapolis) where in addition to experience in Adult Neurology/Spinal Cord, Inpatient Burn Unit, and Acute Care, she worked primarily in the Outpatient Orthopedic venue. There she had the opportunity to work with the Indianapolis Colts, the Indiana Pacers, and the Indianapolis 500 drivers. Her professional experience also includes positions at Methodist Occupational Health Centers (Indianapolis), Yakima Valley Memorial Sport Therapy Clinic, and for the last 19 years, Northwest Physical Therapy and Sports Medicine (formerly known as Orthopedic Physical Therapy.)

An avid runner, and former collegiate volleyball player, Mary has a unique interest in the biomechanics of running, and in injuries unique to the throwing or overhead athlete. She believes strongly that old or young, large or small, there is an athlete in everyone.

In her spare time, she can be found climbing, running, hiking and skiing in the Cascade Mountains or enjoying time with her husband Doran, and two daughters.

Thad Callaghan

Thad Callaghan


Thad Callaghan, DPT, graduated from Naches Valley High School in 2008 and attended Whitworth University and Central Washington University where he earned a Bachelor of Science in Clinical Physiology. He received his Physical Therapy degree from Eastern Washington University in 2017. Thad completed all of his clinical rotations in the Yakima area and is proud to be able to give back to the community that he grew up in.

As a former collegiate football player, Thad has developed an interest in sports medicine and the rehabilitation of injured athletes. He has recently fostered a passion for treatment of chronic pain and the influence our nervous system has on the recovery process.

In his free time, Thad enjoys spending time with his family, playing basketball, running and anything that involves being outdoors.


2505 Racquet Lane
Yakima, WA 98902
Phone: 509-453-PEAK(7325)
Fax: 509-453-7330

Located in the lower level of the Yakima Athletic Club