22 Newtown Road, Danbury, CT ♦ PH: 203-790-5347 ♦ FX: 203-794-1726



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Our Practitioners

William Guaragno, CPO/BOCOP

Owner of Next Step Technologies, Certified Prosthetist/Orthotist


Bill has been working in the field of Orthotics and Prosthetics since 1985. He earned a degree in Prosthetics from New York University as well as multiple degrees in the field of Education from the State University of Pennsylvania. He is ABC and BOC certified and a member of NJAAOP. Bill prides himself in providing personal care to each of his patients so that they may walk as well and pain free as possible!

John Olin, CO

Certified Orthotist


John has been a practicing ABC Certified Orthotist in CT since 1997. He sees patients of all ages, but specializes in pediatric orthotics. His love for pediatrics made him aware that there was a need to improve the mobility of many afflicted children. He takes great pride in his work, and most importantly, he finds great joy in seeing the elation of the kids and their families by being able to do independent activities. “There’s nothing like seeing a child take their first hands-free steps without help. It’s truly rewarding.”

David Koehler, BOCP

Certified Prosthetist


Dave has been a board certified prosthetist since 2012. He has been working with Next Step Technologies since 1991. His wealth of working experience has shaped him into a truly skilled prosthetist that provides top level prosthetic care for his patients.

Other Staff

  • Tom Bennetti - Office Manager, Technical Support, Fitter of Medical Compression Stockings
  • Elizabeth Rojas - Billing Manager
  • Brian Zielinski - Lymphedema Pump Specialist
  • Cynthia Garcia - Receptionist
  • Ryan Peck - Technician
  • Spencer Wong - Office Support

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