About Us

Clinical Prosthetics & Orthotics, LLC is dedicated to providing comprehensive orthotic and prosthetic care that enables people to live a life that they want, a life without limitations.

We are committed to listening to our patient’s concerns, understanding the challenges that they face, and responding by utilizing the most effective treatment procedures to ensure functional results. We strive to provide our patients with superior service, professional excellence, and ethical standards of care.

Clinical Staff


Glen Case – BA, MST, CPO

American Board Certified Prosthetist and Orthotist, Glen Case earned his dual certifications from Northwestern University in Chicago, Illinois. He concurrently holds a Master’s Degree in Teaching from Rochester Institute of Technology and a Bachelor’s Degree of Arts from Geneseo State University. He is past President of the American Academy of Orthotics and Prosthetics of New York State. Prior to establishing Clinical Prosthetics and Orthotics LLC., he resided in the southwestern region of the United States where he held a facility position of Clinical Director for Orthotics in Albuquerque, New Mexico. Glen’s clinical expertise with Orthotics and Prosthetics has been in the area of pediatrics, but he enjoys working with all age groups. He spends his free time training and competing in Nordic ski racing as well as pursuing his various artistic interests.


Dennis E. Ebbing – BSME, MBA, CPO

Originally from Fayetteville, NY, Dennis is an American Board Certified Prosthetist Orthotist (C.P.O.). He earned his prosthetic degree from Northwestern University in Chicago, orthotics degree from Newington (University of Connecticut), and completed a residency at the University of Michigan, Ann Arbor. Dennis also holds a Bachelor’s of Science in Mechanical Engineering from the University of Buffalo. He worked as a design engineer for United Technologies Carrier Corporation before returning to Virginia Polytechnic and State University to obtain his Masters of Business Administration (M.B.A.). In the fall of 2001, Dennis opened the Clinical Prosthetics & Orthotics office in Poughkeepsie, New York. Dennis has published gait research as it relates to lower extremity biomechanics. He conducts volunteer work in Mexico as a clinical prosthetist and spends his free time skiing, bicycling, running, and competitive sailing on the Hudson River.


David B. Misener – BSc, CPO, MBA

David is an American Board Certified Prosthetist and Orthotist. Originally from Guelph, Ontario, he received his Bachelor of Science in Human Kinetics from the University of Guelph. He then went onto post-graduate work in Orthotics and Prosthetics at George Brown College, Toronto, Ontario. In 1994, David moved to Syracuse, NY to complete his residency in both prosthetics and orthotics. In 1997 and 1998 David was appointed to a National Prosthetic Team to teach and promote modern alternatives of prosthetic designs to practitioners throughout the country. Since then he has continued his education and has completed his Masters in Business Administration. David has been practicing in Albany, NY, since 1998. In January 2001 he established Clinical Prosthetics and Orthotics, LLC with his partners. Currently he practices in the Albany, Saratoga and Hudson offices. David’s free time is spent enjoying his wife Elizabeth and sons Ethan and Spencer.


Sean Sullivan

Sean-Sullivan

Sean Sullivan graduated high school in Bainbridge NY and went on to graduate from Century College in White Bear Lake Minnesota in 1993. Sean completed his clinical requirements at The Gillette Children’s Hospital in St. Paul helping children with varying deformities. He has worked in various states including Minnesota, New York and Tennessee as technician and fitter, gaining experience in the fabrication and fitting of state of the art prosthetic and orthotic devices. He has worked closely in the design and construction of myoelectric upper extremity as well as ultralight lower extremity prosthetics. While working in Tennessee he was instrumental in the early stages of research and development of total containment flexible dynamic lower extremity orthoses. This design later became a standard of practice for many orthotic treatment protocols.

In 2011 Sean passed his board exams to become a board certified orthotist.  Shortly after passing his orthotic boards he became a Certified Prosthetic Assistant.  He began working with Clinical Prosthetics and Orthotics in 2002 in our Kingston office and after a brief leave from the company to further his educational background he returned and currently sees patients in Hudson, Kingston, and Poughkeepsie.

Sean also uses his personal experience as a cancer survivor and above knee amputee to enhance the lives of his patients. Taking great pride in his ability to overcome such diversity, Sean counsels individuals with recent amputations and those facing the possibility of amputation. His perspective is from a very active lifestyle where he enjoys cycling, hiking, skiing, hunting, and fishing. He takes an energetic role in the lives of his three active children.