Care built around a life without limitations.
Quantum Prosthetics & Orthotics was founded to bring a more compassionate, personalized, and technically advanced approach to limb loss and mobility care.
Our founder
Quantum was founded by Vikram Choudhary, CPO/LPO, who grew up in Kashmir, where he witnessed firsthand the devastating effects of limb loss — and the pressing need for more compassionate, personalized care. With more than two decades in the field, training that spans the All India Institute of Physical Medicine & Rehabilitation and clinical work in Australia, and experience across leading O&P organizations, Vikram built Quantum to help people live a life without limitations.
A growing family of clinics
Quantum has grown into a family of clinics across three states. In 2024, Quantum welcomed Northern Prosthetics & Orthopedic of Rockford into the group, and our Nevada clinics operate as Advanced Prosthetics & Orthotics. Together, our practices hold the same commitment to every patient — different names in different communities, one standard of care.
Working with leading surgeons
We collaborate closely with leading surgeons on advanced techniques such as targeted muscle reinnervation (TMR), giving patients the best possible foundation for an advanced prosthesis.
Dr. Edgardo R. Rodriguez-Collazo, DPM — Director of the Chicago Foot & Ankle Deformity Correction Center, specializing in complex lower-limb reconstruction and in TMR and trans-tibial amputation techniques that reduce phantom pain.
Dr. Sanjib Behera, MS (Ortho), DNB (Rehab) — an orthopedic and rehabilitation surgeon with more than 20 years of experience across joint replacement, arthroscopy, trauma, and reconstructive surgery.
Meet the team
Behind every fitting is a team that takes the time to get it right:
- Adam Kramer, CPO — Certified Prosthetist Orthotist
- Ryan Babiarz — Clinic Manager & Orthotics Fitter, Rockford
- Tina Hoel — Admin & Office Manager, Rockford
- Ashley Meier — Administrative Manager
- Cliff Walsh — Lead Technician
- Tuncay Gorgun — Senior Advisor
- Nathan Gorgun — Clinic Manager, Las Vegas
As seen on
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Real people, moving on their own terms.
A look at the patients, fittings, and technology behind Quantum — from first cast to back on the road.









“I took my first steps here after I lost both my legs. Vikram and his team treat you like family, not a chart.”
“The best treatment I’ve had in 44 years as an amputee. I wish I’d had this support when I was new to it.”
“A below-knee double amputee since 1992 — the comfort and energy return here are the best of the best.”
