LPO, CPO, Clinical Director
John Brandt is an American Board Certified and Ohio Licensed Prosthetist/Orthotist. He earned his BA in Biology from Wright State University in1990 and a post-graduate Certificate in Orthotics and Prosthetics from Northwestern University in 1991. John has provided prosthetic and orthotic care in the greater Dayton area for over 20 years and is the owner of Optimus Prosthetics. As a prosthetist, he loves working with his hands to create a device that helps people return to an independent life. In his free time, John camps and hikes with his family plays competitive soccer and snowmobiles.
CP, LP, Clinical Manager
Sara Goldberg is an American Board Certified and Ohio Licensed Prosthetist. Sara earned her BS in Exercise Science and Sports Medicine from California Lutheran University in 2008 and a post-graduate Certificate in Prosthetics from California State University, Dominguez Hills in 2010. Sara pursued a career in the prosthetics field because she felt it was the perfect combination of art, science and helping people. She has a background in physical therapy and uses that experience while working with her patients. Outside of work, Sara enjoys spending time with her family and her 2 dogs, playing board games and exploring the outdoors.
LPO, CPO and Patient Advocate
Amy Yates is an American Board Certified and Ohio Licensed Prosthetist. She earned her BE in Exercise Science from the University of Toledo in 1990 and a post-graduate Certificate in Prosthetics in 1990 and Orthotics in 1993 from Northwestern University. Amy serves as a Practitioner Patient Advocate for the Dayton office. She is able to answer questions for our patients and their families not only from a clinical perspective but also from personal experience.
Tim Arnold is an American Board Certified and Ohio Licensed Orthotist and Prosthetist. He graduated with a Master of Science in Orthotics and Prosthetics from Eastern Michigan University. Tim’s personal experience as an amputee led to his interest and pursuit of prosthetics. Outside of work he enjoys spending time with his wife and 2 kids, being outdoors, hunting, fishing, and mastering the BBQ.
Erin McGraw is an American Board Certified and Ohio Licensed Prosthetist. She earned her BS in Exercise Science from Eastern Michigan University in 2016 and MS in Prosthetics and Orthotics from the University of Pittsburgh in 2019. Erin’s enthusiasm for being active lead her to pursue a career in prosthetics to help others do the same and accomplish their goals. She appreciates being able to work with her hands, be creative, and build a special rapport with each patient. Outside of work, Erin enjoys golfing, traveling, hiking, trying out new restaurants, and spending time with family.
Robert Hinks is an American Board Certified and Ohio Licensed Prosthetist and Orthotist. He received his BS in mechanical engineering from Cedarville University in 2014 and his MS in Prosthetics & Orthotics from Georgia Tech in 2019. Robert first became interested in prosthetic limb design after watching Star Wars when he was seven years old. After receiving his BSME and working as a product engineer in the medical device industry for a few years, he shadowed at Optimus and decided to transition to direct patient care by becoming a certified prosthetist and orthotist. Outside of the clinic, he enjoys being outdoors, playing board games, and spending time with his wife, Connie.
William Hendrix is an ABC Certified Prosthetist/Orthotist. He earned his BS in Biomedical Engineering from The Ohio State University in 2017 and his MS in Prosthetics and Orthotics from the Georgia Institute of Technology in 2019. He provided patient care in Georgia and Kentucky before serving the Columbus, OH area. He enjoys approaching this field with a problem-solving mindset to restore quality of life, with an interest in upper-limb solutions and additive manufacturing. Will also enjoys cheering for the Buckeyes, eating pizza, and exploring with his dog.
Community Outreach Coordinator
Christine graduated from Central Ohio Technical College in 1990 with a major in Physical Therapy. Since then, she has also become a Board of Orthotics Certified Orthotic Fitter as well as an American Board Certified, Ohio Licensed Pedorthised. It was while working with Pedorthic patients that she realized her interest in Prosthetics. As a Community Outreach Coordinator, her goal is to help transition both the patient and family through their prosthetic journey. Outside of work she enjoys, cooking, gardening, traveling, and spending time with her family.
Andrea Kinsinger is a licensed Physical Therapist. She received her BS in Physical Therapy in 1986 from Bowling Green State University and the Medical College of Ohio. Andrea has worked with lower extremity amputee patients throughout her career and loves coaching amputees through the process to return to an independent and active life. She also works with area therapists offering expertise and education in gait biomechanics and rehabilitation to facilitate an optimal outcome for our patients at Optimus. Outside of work, Andrea enjoys life with her husband and 4 children bicycle touring, wilderness canoeing, cooking, gardening and mentoring high school girls.
Christian Arnold is a board-eligible orthotist and prosthetics resident. Christian earned his BS in Biology from William Penn University in 2018 and MS in Prosthetics and Orthotics from Alabama State University in 2020. Christian is a transtibial amputee and pursued a career in prosthetics to help other amputees achieve their goals. Outside of work, Christian enjoys golfing, fishing, and spending time with his girlfriend.
CO, Prosthetic Resident
Sam graduated from the University of Cincinnati in 2011 in exercise physiology. He then began work as a technician in orthotics and prosthetics for a short time before attending Northwestern for an orthotics graduate degree. He graduated from Northwestern in 2013 and has been working as a Certified Orthotist since that time. In May 2021 he completed a master's degree in both prosthetics and orthotics from the University of Hartford. He is passionate about continuing his career in prosthetics and working to develop long-lasting relationships with prosthetic patients to provide the best treatment possible. In his free time, he enjoys spending time with family, friends, and his girlfriend. Hobbies outside of work include sand volleyball, indoor soccer, and hiking with his dog Murphy.
Shared Services/Compliance Manager
Front Office Specialist/Dayton
Front Office Specialist/Columbus
Accounts Receivable Specialist
Front Office Specialist/Cincinnati
Promotional and Media Coordinator