WHO WE ARE
In May of 2016 two couples, Natalie & David Bohannan and Jessica and Shane Irgens, took over Greenwood Physical Therapy clinic. Together they formed a new business--BIG Physical Therapy: derived as an acronym from their surnames, Bohannan-Irgens-Group. The business proved successful and, within a year, they expanded and opened a clinic in nearby Fort Smith. The business continued successful growth and in 2021 the business partners expanded their operation again by opening a third clinic in Barling.
OUR MISSION
BIG Physical Therapy is dedicated to improving the physical and emotional lives of their patients by providing pain relief, improved function, and mobility through physical therapy.
MEET OUR STAFF
Physical Therapists, Assistants & Office Personnel
Dr. David Bohannan is co-owner and a primary physical therapist at Greenwood Physical Therapy. He's an alumni of the University of Central Arkansas, having graduated with his Doctor of Physical Therapy degree in 2004. He's been with the company from the beginning and is passionate about helping his patients achieve their goals and maximum potential. It's always rewarding for him to observe the improvements of his patients' overall health. Away from the office, David enjoys playing golf, playing sports with his boys (Drew & Luke), and lounging by the pool. He's married to his wife, Natalie, of fifteen years; they have 2 boys and 1 dog.
Shane Irgens is Co-Owner and a primary Physical Therapist at BIG Physical Therapy. From the beginning he has worked in our office to help people work towards full restoration of their mobility. He loves the transformation of seeing someone come in with pain or dysfunction and then using his hands and knowledge to help them. The most fulfilling aspect of his job is when someone leaves the office with improved function and/or pain. When he’s not working, he loves spending time with his kids--coaching them in sports, working out, reading and discussing literature. He also serves on two local community boards. He’s married to Jessica Irgens (co-founder) and together they have two children and two dogs.
Natalie Bohannan is one of the founders and co-owner at BIG. She's an alumni of the University of Central Arkansas, having graduated with her Doctor of Physical Therapy degree in 2010. Natalie works in our Greenwood location as a Physical Therapy Assistant, also serving as the business coordinator. She enjoys helping patients meet their goals, by improving their function and/or pain. When she's away from the office, she enjoys spending time with her family, playing with her boys (Drew & Luke), and lounging by the pool. Natalie has been married to her husband, David Bohannan, for fifteen years; together they have 2 boys and 1 dog.
Dr. Makayla Cullen is a Physical Therapist at several of our BIG locations. She is an alumni of the University of Arkansas, where she graduated Magna Cum Laude with a Bachelor’s degree in Exercise Science in 2021. She continued her education at Baylor University, earning her Doctorate of Physical Therapy in 2023. Makayla strives to develop relationships with her patients and is driven to aid in their recovery journey. What is most rewarding for her as a therapist is watching her patients achieve their goals and return to what gives their lives meaning - whether that is return to sport, participation in their community, or integrating back into their home life. Outside of the clinic, Makayla enjoys spending time with family and reading. She married her husband, Brayden, in September of 2024. Together they have two German Shepherds named Delta and Maverick.
Robert Saviers is an occupational therapist and certified hand therapist. Robert grew up in Fort Smith and graduated from Southside High School. He received a Masters of Occupational Therapy from the University of Central Arkansas in 2015 and completed a specialty in hand therapy in 2021. Robert has worked in outpatient hand therapy since 2016 and performs post-operative treatment including splinting, wound care, and manual techniques to help patients recover from injury. He loves helping people increase independence in their daily lives and return to the activities they find most meaningful. In Robert’s spare time he enjoys spending time with his wife and daughter, watching sports, and working out.
Deanna Randolph has worked with BIG Physical Therapy since 2017. She loves that her job helps people by maximizing their potential to be independent and improve their quality of life. She’s passionate about the time spent with her family. She loves animals, reading, and cooking. Deanna married her husband, Josh, in 2007 and became a stepmom of two. Together, the couple also share one child, and a French Bulldog.
Katelyn Nichols works in the Fort Smith office as a full time Physical Therapy Assistant. She’s been with BIG Physical Therapy since 2018. Katelyn has a background working in rehab therapy, but being a part of BIG PT has given her the opportunity to work with a variety of diagnoses and clients. She’s passionate about helping clients restore function as well as help them return to hobbies and activities they love. She serves a variety of people: from athletes, to individuals who are homebound and trying to get back into the community. When not at work, she enjoys being on the farm in Booneville that she and her husband own. They couple have been married since 2017 and enjoy raising cattle as well as a few farm animals that have become pets. Katelyn and her husband are members of First Baptist Church of Booneville, where she enjoys singing with the praise team on Sundays.
Hunter joined BIG Physical Therapy in 2022 as a Physical Therapist Assistant. He loves working with patients to help them achieve their functional goals. Hunter attended the University of Arkansas at Monticello, where he played football and met his wife, Chelsea. In his spare time, he enjoys watching football and spending time with family, friends, and his dogs Lucy and Arlo.
My name is Leslie Turner. I have been a PTA for 10 years working mainly in skilled nursing facilities. I have recently joined BIG Physical therapy group. I am 49 years old and live in Monroe Oklahoma. I graduated PTA from Carl Albert State College. I have one son and one grandson. I enjoy the outdoors of hunting, fishing and shooting archery competitions.
Tony Storm is a certified occupational therapy assistant with over a decade of experience in the field. Graduating from Arkansas Tech in 2013, Tony has dedicated his career to helping individuals improve their daily living skills and enhance their quality of life. He is married to Samantha and is a proud father to their daughter, Brynnley. In his free time, Tony enjoys playing golf and spending time outdoors, embracing nature and staying active.
Jessica joined the BIG Physical Therapy team in October of 2024. She has been employed in the medical field for over 10 years starting out as CNA in the Nursing facility and hospital setting. Finding a passion in helping those in need adapted, thrive and grow through life situations she worked through college pursuing her degree at CASC. Receiving her PTA license in 2023 with a goal to help those in need have the best possible outcome & quality of life. Outside of work she enjoys spending time with her 2 daughter’s Bryanna and Izzy, fiancé and Buddy their Bassett hound. Enjoying things like camping, fishing, daughter’s sports and family time. Blessed to be part of the BIG family!
Mandy Bay is the office assistant/physical therapy technician at our Chaffee Crossing location. She has been with the company since 2011, and has a degree in Business Administration. She enjoys working alongside our therapists to ensure patients feel supported and cared for during their recovery process. When she’s not at work she loves spending time with her children, Lexi and Bryston.
Melissa Cutsinger is a Physical Therapist Assistant who joined BIG in October 2025. She earned her degree from Arkansas Tech University–Ozark in 2021 and brings experience in both outpatient orthopedic and pediatric physical therapy settings.
Melissa is passionate about helping patients achieve their goals and enjoys seeing small progress turn into meaningful accomplishments. She is committed to continued learning and providing an engaging, results-driven therapy experience.
Outside of work, she is a mom of two teenagers and has been married to her husband, Alan, for 18 years. She enjoys spending time outdoors, including hiking, fishing, and chasing sunsets, as well as relaxing at home with her family and pets.
Harley is one of our Physical Therapist Assistant’s at our south Fort Smith location. She graduated from Greenwood High School in 2020. Harley played softball at Carl Albert State College where she learned about the PTA program. Her love to help people maintain good health and return to activities they enjoy is what lead her to physical therapy. Harley graduated from CASC PTA program in May 2025, but has been with us since 2023 working as our therapy tech while she was in school. In her free time she enjoys spending time outside with her husband, Hunter and chocolate lab, Sage.
Skye graduated Greenwood high school in 2024. I’ve been working since the end of my junior year of high school. Once I graduated, I made the decision to continue working full time. Before my amazing job at the clinic, I worked at Dollar General in Greenwood as a full time lead. I’m so glad I was given the opportunity to join the BIG team. I love the social environment and the kind faces I get to see everyday. I plan to continue working full time and find opportunities in the work force as I grow and learn. Outside of the clinic, I enjoy being outdoors and being active. I also enjoy art, all things animals, spending time with friends and family, traveling, and doing it all with my significant other Bryce.