When you work with our physical therapists at Great Northern, you're working with some of the most highly skilled and trained specialists in the area. Our therapists focus on improving your movement, mobility, and strength to restore, maintain, and promote optimal physical function.


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He graduated from the University of Montana in 1991 and obtained his clinical doctorate from the Evidence in Motion Institute of Health Professions in 2012. Christian is a board certified orthopedic specialist and certified in Functional Dry Needling and McKenzie. He is a faculty affiliate with the University of Montana and serves as president of the Montana chapter of the APTA.


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Seth Halverson, DPT, OCS

Seth was born and raised in Big Timber, Montana on a small family ranch. In 1996 he earned his degree in physical therapy from the University of Montana. Seth obtained his board certification in orthopedics in 2009 and is recognized as a Board Certified Clinical Specialist in Orthopedics by the American Physical Therapy Association and also holds a clinical doctorate in Physical Therapy.


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Kate Dolan is a native of Bozeman. She earned her Doctorate of Physical Therapy at the University of Montana and was awarded the Nora Staael Evert Scholarship Award for outstanding leadership qualities. She was a Division One ski racer at The University of Denver where she graduated with a Bachelor of Arts in Integrated Science and Bachelor of Arts in Psychology.


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Kara was born and raised in Bigfork, Montana and graduated from Montana State University in 1998 with a Bachelor of Science degree in Exercise Science. She obtained her Master of Science in Physical Therapy from the University of Colorado Health Sciences Center in 2001.


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Kebrina Vinglas, PT, DPT, CLT

Kebrina graduated with her Master's Degree in Physical Therapy from Loma Linda University in 1999, and post-professional Doctorate (DPT) in 2001. She became a board certified Orthopedic Specialist (OCS) in 2004, has advanced level training in pelvic floor rehabilitation, is a Certified Lymphedema Therapist (CLT) with advanced training in oncology rehabilitation and is certified in Dry Needling through Kinetacore.


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Jim Sykes, Pt, DPT, OCS

Jim grew up on a farm in western Montana and completed his undergraduate degree in exercise science and sports medicine at Montana State University. After graduating, Jim earned his doctorate in physical therapy at the University of Montana and conducted research with NASA studying the effect of prolonged exposure to zero gravity.


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Aisha Crofts, Administrative Assistant

Born in Cebu and raised in Montana, Aisha attended the University of Puget Sound and University of Montana studying microbiology before relocating to Bozeman in 2015. Previously a distance runner and crossfit enthusiast, she enjoys skiing and a peaceful hike with her husband and their three dogs.