Your perfect fit for personalized care.

We have vast experience working exclusively with amputees to restore your quality of life through personalized prosthetic care in a family-friendly atmosphere.



Mark A. Nielsen, CP, ATC

Founder/Certified Prosthetist
2006 Certificate in Prosthetics; Northwestern University
2001 BS in Athletic Training; Slippery Rock University
ABC Certified in Prosthetics

Mark is a dedicated, compassionate prosthetic clinician with a desire to continually provide amputees an unparalleled standard of prosthetic care. He brings over 20 years of experience working with patients and putting their needs first.

Mark has over two decades of health care experience and has gained extensive knowledge in designing prostheses for upper and lower extremities. He is certified in a variety of prosthetic devices including Otto Bock Microprocessor knees and upper extremity componentry, WalkAide, PropioFoot, iWalk Powerfoot BiOM, and Compas. Mark also served as National Residency Program Director for prosthetic residents of Physiotherapy Associates. Prior to his work in prosthetics, Mark worked as a Certified Athletic Trainer in both the inpatient and outpatient rehabilitation settings at Hanover Hospital and the University of Pittsburgh Medical Center.

Joshua Erickson, CTP

Founder/Certified Prosthetic Technician
ABC Certified Technician in Prosthetics

Joshua is a creative, detail oriented prosthetic technician. He believes that every patient and every prosthesis is unique and deserves skill and attention to achieve the best fit and finish. Joshua is on the forefront of new technologies, materials and techniques which enables him and the Kinetic team to make sockets that are lighter, more durable, and more comfortable for patients.

Joshua is an ABC certified prosthetic technician with over 15 years experience. From prosthetic design and construction to personalized laminations and cosmetic covers, Joshua is thoroughly experienced in all aspects of prosthetic fabrication. After a hard days work in the prosthetic lab, Joshua goes home and continues honing his fabrication skills. He is currently restoring an old farmhouse, planning to weld a tractor from scratch and teaching his son the finer points of using a fork to put food in his mouth instead of on the curtains.


Certified Prosthetist
2012 Master of Science in Orthotics and Prosthetics; Eastern Michigan University
2009 BS Bio Engineering; University of Maryland
ABC Certified in Prosthetics

Andrew is a resourceful and innovative prosthetist who works with patients in private practice, hospital, and home settings. Having a background in engineering gives him an edge in working with emerging technologies in the field of prosthetics. Andrew utilizes a CAD modeling program and a 3D printer to solve unique challenges facing patients that can’t readily be addressed with traditional approaches.

Andrew has volunteered with numerous adaptive sports organizations, and is currently the Pennsylvania Center for Adapted Sports’ Adaptive Climbing Program Coordinator. While primarily focusing on adaptive climbing, he has also taken part in skiing, golfing, biking, kayaking, basketball, and rugby events.  Andrew is dedicated to helping every individual participate in the recreation activities they want to, both inside and outside of his work life.


Billing Specialist
BS Physical Therapy, University of Pittsburgh
Medical Billing certification, AMBA

Amy returns to the Kinetic Prosthetics’ team after having moved away to Massachusetts in 2015, and then to the Chicago area in 2019. She is happy to be back home in PA! Her background in Physical Therapy gives her a unique perspective when advocating for patients needs and the care they deserve to insurance companies. She has a certification in Medical Billing along with years of experience in customer service and managing patient accounts. She is passionate about the personalized care we provide our patients at Kinetic Prosthetics.

When she is not working, Amy enjoys hiking with her husband Ron, cooking plant-based meals and spending time with her two married sons and their wives.



Certified Prosthetic Technician
ABC Certified Technician in Prosthetics

Jerry first came to Kinetic Prosthetics as a transfemoral patient in May of 2016.  Getting to ‘peek behind the curtain’ at Kinetic, the technical side of prosthetics interested him.  After deciding to shadow Josh in the lab and helping make his own socket, he liked it enough to join the team in early 2018.  Jerry always enjoyed working with his hands as well as helping out others.  Jerry takes a lot of pride in all of his work here at Kinetic Prosthetics and proudly completed his training to become an ABC certified technician.  In his free time, Jerry is always upgrading his Jeep for the next off road adventure with his son.  He also rides motorcycles and enjoys spending time outdoors with his family. 

Allie Headshot for Website


Community Activity Coordinator
Master of Science in Biology; Chatham University
Bachelor of Science in Biology; Elizabethtown College

Allie, a below the knee amputee for 29 years, started with Kinetic Prosthetics in 2014 as a patient and has since joined our team as the Community Events Coordinator. Previously she worked for one of the largest Orthopaedic companies in the area as an office manager. With this leadership and strength at organizing events, to go along with her cheerful attitude and eagerness to help mentor new amputees, she has been an amazing addition to our team.

Currently Allie is working with local organizations to schedule fun events for our patients and the whole amputee community to enjoy! Please look at our events tab, as well as Instagram and Facebook, to see all the upcoming events that she has planned!


Kinetic Prosthetics is your perfect fit from our highly personalized care to our customized in-house solutions, all to empower you to lead the lifestyle you want to live. Schedule your free in-person prosthetic consultation and see how we are your perfect fit in every way.