Board of Directors

Ann Leimkuehler Moss is the President of Union Orthotics & Prosthetics Co. and De La Torre Orthotics & Prosthetics based out of Pittsburgh, Pennsylvania. The combined companies have nineteen offices and one hundred forty employee’s serving western Pennsylvania. Ann is a 3rd generation O&P professional and currently owns and operates the business along with her brother Peter Leimkuehler, CPO and sister Laura Mullin, CPO. Ann has worked in the industry over twenty years. She also serves on the board for Pennsylvania Orthotics and Prosthetic Society (POPS).  Ann is a graduate of Ohio University with a Bachelor of Science Degree in Communications and Business Administration. Ann has stated that today’s top challenge for the O&P profession is healthcare legislation and regulation and that NAAOP’s advocacy and mission is critical in shaping the future of O&P.

Nathan Kapa is a Certified Prosthetist and President of Bremer Prosthetics in Flint, MI. Nate is also a partner with Baranek Kapa Prosthetics in private practices that focus on providing specialty prosthetic care throughout Mid-Michigan.

While Nate has focused much of his 20-year career on providing patient care, he has also been active in advocacy at both the state and national levels. He has served on the Board of Directors of the Michigan
Orthotics and Prosthetics Association for more than 10 years, serving as President, Vice President, and currently Secretary. Nate has actively defended the state’s Auto No-Fault Laws and fought to protect the
rights of people injured in automobile accidents. Nate also serves as a Lead Advocate for the So EveryBODY Can Move initiative.

For the past 11 years, Nate and his business partner, Scott Baranek, have run the Step Up Amputee Strength Training Program. Step Up is a free exercise program focused on helping amputees reach their
maximum functional potential by keeping people engaged in exercise once their PT benefits expire.

Regina Weger is the Chief Customer Officer at OPIE Software and is a recognized 30-year leader in the Orthotic and Prosthetic industry.  In her role at OPIE Regina is responsible for developing and maintaining strong relationships with industry and professional partners and customers.

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Regina previously was employed by Hanger.  In her role at Hanger, she held the position of President, Products and Services where she had the honor of serving independent O&P businesses at SPS [Southern Prosthetic Supply], along with allied health care professionals at Accelerated Care Plus.  Regina is an accomplished and recognized leader in the O&P profession most known for developing successful strategic partnerships.

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Regina attended Brenau University and started her career in the Orthotics and Prosthetics industry in 1992 at JE Hanger Southeast in Alpharetta, Georgia. She is a 2015 recipient of the JE Hanger Leadership Award, and a leader/mentor for Women in O&P Leadership.

Adam Miller is the Vice-President of VGM & Associates of Waterloo, Iowa and the former President of the Orthotics Prosthetics Group of American (OPGA). He was previously the Director of National Accounts for VGM Insurance.  Adam has a Bachelor of Arts degree in public relations from the University of Northern Iowa. Adam graciously steps in as a member of the NAAOP Board after the untimely passing of Todd Eagan, a leader in NAAOP for many years.

Maggie Baumer, JD is an attorney licensed to practice in both New York and Massachusetts. She earned her Bachelor’s Degree in Clinical Psychology from Tufts University in 2004 and her Juris Doctor degree from the Benjamin N. Cardozo School of Law in 2011. She has served in advocacy positions for several health care organizations including the Long Term Care Community Coalition and the Office of the New York State Attorney General (Health Care Bureau) in New York City. Most recently, she became a member of the Trauma Survivors Network Advisory Board (2014 to present) and the American Trauma Society’s Board of Directors (2016). She currently serves as Area Clinic Business Manager, Hanger Clinic – Massachusetts,  as well as a Certified Peer Visitor Coordinator for the AMPOWER program, a peer-to-peer network designed to empower and strengthen those affected by amputation or limb difference through peer mentorship, educational resources, and community events.

Dr. Jeffrey Cain is a family physician and clinical professor at the University of Colorado School of Medicine, a past president of the American Academy of Family Physicians, and a past chair of the board of directors of the Amputee Coalition. After leading the effort to pass the nation’s first parity law in 2001 in Colorado, he was the founding chair of the Amputees Coalition’s Advocacy Committee whose efforts have resulted in the passage of prosthetic access laws in 21 states and the introduction of bipartisan federal prosthetic insurance legislation.

Jenna Calomeris has dedicated her career to supporting patients utilizing orthotic and prosthetic solutions and the professionals who provide their care.  Jenna is the VP of Sales for Elevate Movement and is approaching her 15th year in the O&P profession, 18th in providing non-pharmaceutical medical device solutions for patients with mobility challenges. Prior to supporting the sales and clinical team at Elevate, Jenna grew national, regional, and state level teams and initiatives for both bracing and prosthetic divisions at Ossur Americas. She was previously the Director of Sales and Marketing for Ossur Patient Care in North America. Jenna volunteers actively in O&P related initiatives.

She was most recently elected to the board of the National Association for the Advancement of Orthotics & Prosthetics. Jenna is also the Communications sub-committee chair for So Every BODY Can Move Georgia and a member of AOPA’s Government Affairs sub-committee. Previously she supported the Georgia Society of Orthotists and  Prosthetists as the vendor relations board member. Jenna holds a Bachelor of Arts in Communication Studies, graduated as valedictorian from Wingate University, and achieved NCAA awards as a leader in the women’s tennis program. She presently resides outside Atlanta, Georgia.

Glenn Crumpton, CPO, LPO is President of Alabama Artificial Limb and Orthopedic Service, Inc in Montgomery, Alabama. AAL&OS is a private practice with offices in Montgomery, Opelika, Dothan and Selma. Glenn has spent his life in orthotics and prosthetics and is active in advocacy for the physically challenged. As a third generation prosthetist/orthotist, he has had the opportunity to witness the dramatic changes and advances in the O&P world that allow for remarkable results never before possible, while maintaining a connection with traditional methods and techniques for those who desire it.

Glenn’s time spent in graduate school for prosthetics and orthotics at Northwestern University in the late 1980’s and subsequent educational opportunities combined with over 30 years of experience in prosthetics and orthotics allow him to address the needs of his patients on many different levels to suit their needs and desires. Glenn was instrumental in the establishment of a licensure law in Alabama in 2002.

Glenn’s family is a major part of his life and he enjoys many activities with his daughters; Sara, Jordan and Emilee and his wife, Jennifer. Glenn is also a devoted Auburn Tigers and Atlanta Falcons football fan.

Thomas Guth, CP is the Chief Prosthetist for the RGP Prosthetic Research Center and is a founding member of NAAOP. With over forty-five years of experience in the prosthetic industry, Tom dedicated his career to developing new ways to increase the quality of life and comfort of amputees. After receiving a Bachelor of Arts in Political Science/History from San Diego State University and later postgraduate courses in Prosthetics at New York University and University of California, Los Angeles, Mr. Guth went to work for his father at RGP Prosthetic Research Center. He was the founding Director of the California Orthotic and Prosthetic Association from 1978 – 1980, President of the California Orthotic and Prosthetic Association from 1980 – 1982, and is the Director Emeritus for NAAOP

Steven Miller is the regional vice president southeast for Hanger, Austin, Texas. He has been with Hanger for 25 years serving in numerous leadership roles. He is a graduate of Southwestern Medical Center in Dallas and is nationally recognized as an expert in rotationplasty and has two patents for prosthetic products. He is a Georgia Society Orthotics and Prosthetics board member, a Georgia Composite Medical board member, and a graduate of Georgia Southern University with a bachelor’s degree in kinesiology.

Paul E. Prusakowski, CPO, FAAOP is the founder and CEO of OPIE Software, the leader in O&P Practice Management software in North America founded in 1995. His company is responsible for the business continuity of over 50% of the practices in the United States that rely upon OPIE for clinical, operational, financial, purchasing, compliance, reporting, business intelligence and analytics processes as well as practice management training and support. 

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Paul is a Past President of the American Academy of Orthotists and Prosthetists, as well as a past executive board member of the Florida Association (O&P) and Florida Chapter (AAOP) where he was instrumental in the passage of one of the nations first O&P Licensure Laws. He is co-founder and director of the Digital Resource Foundation for O&P which maintains an archive of hundreds of volumes of historical O&P literature, as well as an international humanitarian database that connects donors and volunteers to those in need of services globally. 

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Paul also owns Gainesville Prosthetics, a boutique clinical practice that serves the needs of patients in North Central Florida and provides a training center for students, residents, and colleagues, as well as provides a testing space for emerging digital and clinical workflows integrated within the OPIE Software.

Michael Rayer, CP is the managing partner for Prosthetic Innovations, a prosthetics only practice located in Crum Lynne, PA. He has a degree in Mechanical Engineering from the University of Virginia and is a graduate of the Newington Certificate Program in Prosthetics. He is an ABC Certified Prosthetist and is licensed in the state of Pennsylvania.

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Christian Robinson is the President of Össur Americas.   He was previously the Executive Vice President B&S and Ossur Americas,  and also served as Senior Vice President at Össur, responsible for the Össur Americas supplier business. Christian is a graduate from Brigham Young University and Harvard Law School. Since joining Össur in 2012, Christian has served in a number of executive positions, including General Counsel Americas and VP Finance Americas. Prior to joining Össur Christian practiced corporate law with global law firm Paul Hastings LLP with a focus on mergers and acquisitions and capital markets transactions.

Scott Schneider is the Head of Government, Medical Affairs & Future Development – North America at Otto Bock Healthcare LP. In his role, Scott is responsible for exploring opportunities in partnerships, M&A, technology and managing integration, corporate marketing, IT, operations and political relationships. Scott is a member of the North American Executive Board. Scott helped establish Ottobock’s digital landscape from social media to fabrication - evolving prosthetics and orthotics from scanning, cloud designing, additive manufacturing to data integration analytics. Schneider joined Ottobock in 2003 with the acquisition of his company TEC Interface Systems and has held assignments at Ottobock’s Global Headquarters in Duderstadt and Berlin, Germany and at the North American Headquarters in Minneapolis, Minnesota and Austin, Texas. Scott has for decades dedicated his time and service to the O&P profession and is a recipient of the American Orthotic and Prosthetic Associations Ralph R. “Ronney” Snell Legislative Advocacy Award.

Founder, and Clinical Director of the American Prosthetic Institute, Ltd., Stokosa Prosthetic Clinic in Okemos, Michigan. The Institute and Clinic specialize in treating people with limb amputations or congenital anomalies that require Prosthetic care. He sees patients from all over the USA and other countries. He has pioneered many innovative procedures that provide the highest possible quality of life to the Amputee. Jan’s father, Walter Stokosa, CP, co-founder of the Prosthetics Department at the University of Michigan, where he developed many innovative procedures, and, initiated Jan’s career in Prosthetics at age 7. Jan assisted in all aspects of Clinical Prosthetics: learning anatomy, biomechanics, materials technology, all lab fabrication procedures, and in the treatment room, learning the intricacies of Prosthesis fitting, and, most importantly, treating patients with respect and compassion. 

In 1967, Northwestern University celebrated the inaugural graduating class of Clinical Prosthetists in External Extremity Prosthetics, Jan graduated first in his class. A trailblazer, Jan has had many firsts; in Michigan he fit the first myoelectronic Prosthesis on a man in the operating room immediately following amputation (Jan’s father was his assistant). When the man awoke from the anesthetic, he was able to open and close his prosthetic hand. Another – fitting the first amputee to finish the Chicago marathon. This was the beginning of Jan’s approach to patient care. Since that time, he has developed many innovative clinical and lab procedures with the focus of always advancing care to patients, and the prosthetics field. To quote Jan’s father, “The best we have to offer the amputee is none too good; it behooves us to constantly strive to improve care to the Amputee”

Jan has educated, trained, and guided many practitioners who have gone on to establish their own practices throughout the country. Jan feels his current team at the Clinic, albeit small, is the best to date; all committed to assisting the amputee in all aspects of clinical and technical challenges, as well as navigating the myriad administrative complexities that beset today’s clinical practice. He emphasizes the importance of taking time to listen to the patient ... address each concern … apply care to the best of your ability, every time, to every patient; and be truly interested in their welfare; and, when you reach the maximum of your experience, and it isn’t enough – INNOVATE. Expand the boundary of care. 

He continues to be a consultant to private and institution clinical care, as well as to insurance companies.

Nikki is the Director of the Orthotic and Prosthetic Group of America (OPGA) and she was previously the Director of Operations for Osseointegration International, Inc. She is a former firefighter, EMS professional, and fluent Russian speaker. Nikki brings a distinct blend of expertise and advocacy to the healthcare field. Following a life-altering accident in 2009 and an unsuccessful knee replacement, Nikki underwent an above-the-knee amputation. This propelled her dedication to osseointegration, establishing her as a significant figure in O&P advocacy. Nikki's local impact shines through her Central Illinois Amputees initiative, addressing rural amputees' unique needs. Through essential resources, advocacy, education, and community engagement, she bridges gaps in care access. Nikki was a 2022 NAAOP Breece Fellow and in 2023 was named the OPGA O&P Women of the Year.

Brad is certified in Prosthetics and Orthotics from both BOC and ABC, and is licensed in Kentucky and Tennessee and has been serving in those communities for over 35 years. Brad is currently a Regional Manager for Bionic Prosthetics and Orthotics and Past President of Clarksville Limb and Braces. He is a second generation practitioner, whose father introduced him to the profession early on in his teenage years. He served on the BOC board of directors for more than a decade in various roles;
including two terms as Board Chairman. He is also on the KY State Licensure Board as Vice Chair. Brad loves staying involved with the O&P profession and supporting the next generation of practitioners. He is always inspired by the clinical outcomes, especially in pediatrics. He enjoys the outdoors, hunting and sports. Traveling and family are a big part of his life, especially his grandchildren.

Peter W. Thomas is the Managing Partner and President of the law firm of Powers Pyles Sutter & Verville, P.C., a Washington, DC law firm specializing in health care and education. Peter focuses his practice on health care law, legislation and regulation, medical and vocational rehabilitation, and disability law and policy. He has served since 1991as General Counsel to the National Association for the Advancement of Orthotics and Prosthetics (NAAOP), a national non-profit association of orthotic and prosthetic providers and routinely advises O&P businesses and practitioners on the billing, fraud and abuse, and regulatory requirements of Medicare, Medicaid and private health insurers. Peter is also the Legislative Counsel for the O&P Alliance which is made up of the five leading O&P organizations in America. He routinely writes articles for industry publications and has been the lead attorney teaching an industry course on O&P compliance with federal and state health care laws. Mr. Thomas is admitted to practice law in New York State and Washington, D.C. and attended Boston College and Georgetown University Law Center.

George W. Breece is the current and founding executive director of NAAOP. Since 1987, Mr. Breece has worked to preserve NAAOP’s unique role as a trusted government relations advocate for professional O&P patient care. Breece’s professional experience includes being a former member of the North Carolina House of Representatives; former Vice President of Special Projects for the National Cable Television Association and worked for Ted Turner, Turner Broadcasting System Inc. in Washington D.C. Breece is very active in his hometown of Fayetteville, N.C. and is currently Director Emeritus for the Greater Fayetteville Chamber of Commerce. He hosted radio and television shows for years with Cumulus Broadcasting and Time Warner Cable. Breece is a former member and Chairman of the North Carolina Military Affairs Commission and he is a recipient of “The Order of the Long Leaf Pine” which is North Carolinas highest civic award. George is also a Director Emeritus for North Carolinas State Capitol Foundation. He is a member of the Hay Street United Methodist Church and earned his Bachelor of Arts Degree at Atlantic Christian College and served three years active duty in the United States Army Mortuary Branch. Breece is married to Dena D. Breece, PhD, CPA who is a Professor at the University of North Carolina Pembroke.