As iNRRTS continues to champion excellence in complex rehab technology, we proudly introduce the dedicated professionals who serve on our Board of Directors. These individuals bring a wealth of experience, insight, and passion to the field, guiding our organization with integrity and vision. In the following blurbs, you’ll get a glimpse into the backgrounds and motivations of the leaders shaping our future.
President
Jason Kelln, ATP, CRTS®, is a sales manager and an Assistive Technology Professional with PrairieHeart Mobility, a Saskatchewan-owned mobility products company.
Having entered the industry in February 1999, he has had a varied career from
complex rehab with spinal cord injury, multiple sclerosis, Amyotrophic Lateral Sclerosis, and pediatrics. Kelln has a passion for the industry and is a member of the RESNA Professional Standards Board and a 2020 CAOT/SSOT Citation Award recipient. He has presented papers at CSMC and ISS. Kelln, an iNRRTS Registrant since 2018, was the first Canadian to become an iNRRTS Registrant and is a recipient of the Simon Margolis Fellow Award.
President-Elect
Tom Simon, ATP, CRTS®, is an Assistive Technology Professional and works for Numotion in Dallas, Texas. Simon has been in the Complex Rehab Technology industry for more than 20 years. He has been the review chair for Region A, secretary and vice president on the Executive Board and involved throughout the entire organization. Simon has been serving the ALS population from the beginning by attending both ALS Clinics in the Dallas-Fort Worth area, Texas Neurology and UT Southwestern Medical Center. He has been a Registrant since 2005 and a CRTS® since 2007.
Vice-President
Darrell Mullen, RRTS®, works for Tango Medical in Moncton, New Brunswick. His passion for the industry was sparked after his father had a stroke and required the use of a wheelchair. He entered the industry in 2006 as a service technician and now specializes in custom seating and solution design/fabrication. In 2013, Mullen received the Citation Award from the Canadian Association of Occupational Therapists for his contribution to the health and wellness of Canadians. Never content with the status quo, he enjoys pushing innovation with product research and development. He became an iNRRTS Registrant in January 2021.
Treasurer
Anne Kieschnik, BSW, ATP, CRTS®, has extensive experience in Complex Rehab Technology, spanning direct service provision, program direction, service management and business ownership. She has been deeply involved in the development and promotion of the Assistive Technology Professional and Certified Complex Rehabilitation Technology Supplier® certifications, maintaining both throughout her career. Kieschnik has been an iNRRTS Registrant since its inception in 1993 and has previously served on the board of directors as vice-president and director at large. She has contributed significantly to the Registry’s growth and governance over her more than three decades of experience.
Secretary
Dave Nix, ATP, CRTS®, has been serving wheelchair users since his high school days in Tampa, Florida, when Everest and Jennings was the only viable manufacturer. He grew up serving patients and realized early that this vocation fulfilled his desire to help people who relied on assistive technology. He still loves taking care of clients and can be found changing batteries on a customer’s kitchen floor in Chicago, fitting a pediatric wheelchair in Wisconsin or helping a Michigan customer learn how to operate a new device while making friends with her friendly terrier. He loves to fit and modify wheeled mobility for international users and has traveled to Romania, Jordan, Guatemala, and northern Iraq to serve. “What may end up in our U.S. dumpsters is received with gratitude in some countries. It’s humbling and gives me great joy.” Dave has been an iNRRTS Registrant since 2000.
At-Large Directors
Chad Filer, CEAC, ATP/SMS, CRTS®, is a RESNA-certified Assistive Technology Professional and Seating and Mobility Specialist. He has been an iNRRTS Registrant since 2013 and a CRTS® since 2015. Filer holds a bachelor’s degree from Embry-Riddle Aeronautical University in management and a master’s degree from Northeastern University in leadership and organizational communication. Filer works for Carolina’s Home Medical Equipment in Matthews, North Carolina.
Denise Harmon, ATP, CRTS®, brings 30 years of experience as a professional Complex Rehab Technology Supplier, dedicated to serving communities across Illinois. A committed leader within the Registry, Harmon has been an iNRRTS Registrant since its inception in 1993, making her one of the organization’s longest-standing members. Over the decades, she has contributed significantly to the growth and governance of the Registry, serving on the iNRRTS Board in multiple leadership roles, including president, past-president, and director at large, and as an advisor through the Past-Presidents Committee. Her unwavering dedication reflects not only her professional expertise but also her deep commitment to advancing the mission and values of iNRRTS and supporting the CRT community.
Brian Coltman, ATP/SMS, CRTS®, has been employed by Michigan Medicine/University of Michigan Wheelchair Seating Service in Ann Arbor, Michigan, for 14 years. He is a member of the Michigan Medicine Pranger ALS Clinic/ALS Center of Excellence and PM&R physician wheelchair clinic. Coltman provides consultation and supplier coordination, detailed evaluation for and provision of power and manual mobility systems, custom seating and complex rehab equipment. He has over 40 years of experience in direct patient care for durable medical equipment and Complex Rehab Technology. In his personal life, he enjoys family, hunting, fishing, physical activity, and all things outdoors. Coltman has been an iNRRTS Registrant since August 1996 and a CRTS® since 1998.
Michelle Harvey, BSC HONS OT, RRTS®, has over 18 years in the mobility and accessibility industry, with a background in occupational therapy. Harvey is currently the chief operating officer at HME in British Columbia. She has been a speaker at the International Seating Symposium, the European Seating Symposium and the Canadian Seating and Mobility Conference. Additionally, Harvey is certified in Ride’s Custom Seating and Manual Handling. She serves on the Canadian Advisory Committee and became an iNRRTS Registrant in 2021.
U.S. Review Chair, Region A
Jeff Decker, ATP/SMS, CRTS®, is an Assistive Technology Professional and a Seating and Mobility Specialist for National Seating & Mobility. He has more than 20 years of experience in serving some of the most complex pediatric and adult mobility patients with neurological, spinal cord and skeletal asymmetry diagnoses. Decker has been an iNRRTS Registrant since 2011 and a Complex Rehabilitation Technology Supplier® since 2013.
U.S. Review Chair, Region B
Kathy Fallon, ATP/SMS, CRTS®, is a member of the complex rehab team at Kennebec Pharmacy & Home Care, now National Seating & Mobility, where she has worked for many years. With 30 years of industry experience, she has a vast knowledge of durable medical equipment and specializes in custom and manual power wheelchairs, seating systems, standers and bath safety for all ages. Fallon earned her Assistive Technology Professional certification in 2003 and her Seating and Mobility Specialist certification in 2025. She has been an iNRRTS Registrant since 2000 and a Complex Rehabilitation Technology Supplier® since 2003. Fallon currently helps serve the communities of Central and Southern Maine, from Augusta to Saco.
 U.S. Review Chair, Region C
Parker Fadler, ATP, CRTS®, is a RESNA-certified Assistive Technology Professional with 14 years in the CRT industry. He holds a bachelor’s degree in Fisheries and Wildlife Management and Forestry with a minor in Biology. Fadler has been an
iNRRTS Registrant and a Complex Rehabilitation Technology Supplier® since 2019. Most recently, he was an at-large director on the iNRRTS Board. He works for Alliance Rehab and Medical Equipment in Columbia, Missouri.
U.S. Review Chair, Region D
Kristen Decker, ATP, CRTS®, is the rehab field manager at Handi Medical Supply, a durable medical equipment provider founded and based in St. Paul, Minnesota. She leads a team of Assistive Technology Professional suppliers and complex rehab technicians delivering rehab and mobility solutions. With nearly a decade of experience in the DME industry, Decker focuses on advancing customer experience, streamlining operations and strengthening partnerships with clinical teams. She is passionate about coverage advocacy, community education on rehab solutions and fostering collaborative, whole-person care. Decker has been an iNRRTS Registrant since 2021, earning her Complex Rehabilitation Technology Supplier ® certification in 2023.
Canadian Review Chairs
Region A
Robbie Scott, RRTS®, has lived in Clyde River, Prince Edward Island, Canada, his entire life. He began his career as a plant manager at a truss plant before transitioning into the medical equipment field in 2008, starting as a technician with Harding Medical. After several years with Lawtons Drugs in a similar role, Scott returned to Harding Medical in 2012, initially splitting his time between sales and technical work before moving into full-time sales, where he continues to serve clients today. In addition to his professional work, Scott operates a body shop for car repairs. Outside of work, he enjoys golf, hockey and exploring the Island on his four-wheeler and Spyder with his wife, Pauline, and their son, Liam. He has been an iNRRTS Registrant since 2021.
Region B:
Michael Joyce, RRTS®, began his career in 2003 with Creative Mobility in Okanagan, British Columbia, Canada, as a sales representative specializing in Complex Rehab Technology and pediatrics, often taking a hands-on approach by performing technical work in rural areas. In 2010, he became co-owner of Creative Mobility, gaining experience across all departments, including service, accounting, purchasing, sales and contract management. Following the sale of Creative Mobility, Joyce spent nearly five years in management with Motion Specialties, supporting multiple aspects of the business. He later joined HME Home Health in British Columbia, where his primary roles include product education, serving as a corporate programs liaison, and supporting sales, service and systems. Throughout his career, Joyce has built strong relationships with manufacturers, distributors, therapists, funders and even competitors, reflecting his commitment to collaboration and industry advancement. Joyce has been an iNRRTS Registrant since 2022.
Region C:
Stefanie Sukstorf Laurence, B.Sc.OT, OT Reg.(Ont.), RRTS®, is an occupational therapist and the clinical educator for Motion (formerly Motion Specialties) across Canada. Laurence has been working with people with special needs since 1980, when she was a camp counselor for Easter Seals. She spent 16 years at Bloorview Children’s Hospital (now part of Holland Bloorview Kids Rehabilitation Hospital) as the coordinator of seating, equipment and mobility, in charge of all durable medical equipment for inpatients and transition to home. Laurence joined Motion Specialties in 2005 and combined teaching with hands-on involvement in durable medical equipment prescription. She was on the planning committee for the Canadian Seating & Mobility Conference. Laurence has been an iNRRTS Registrant since 2021.
Amy may be reached at aodom@nrrts.org.
Amy Odom, director of operations for iNRRTS, has been with the organization since 2002. She has more than 30 years of experience in the marketing and operations fields. Odom earned an agricultural communications degree from Texas Tech University. She resides in Lubbock, Texas, and is a proud Texas Tech Red Raider.