Matt Cumella, PT, DPT, GCS
CEO/Founder and Physical Therapist

Our Founder, Matt Cumella, is a Doctor of Physical Therapy who has treated thousands of patients with assistive needs. He believes movement is medicine, especially in moments when being mobile is particularly challenging. In over a decade of patient care, he’s seen firsthand how easily the limitations of traditional devices can become the user's own. From hip fracture to Parkinson’s to stroke sufferers - quality care, maximal recovery, and independence are difficult to achieve with traditional devices like basic walkers.

Taking matters into his own hands, he invented Nuvio-One and conceptualized the Reaction Stabilizer in his garage. Armed with a passion to optimize mobility when and where it's difficult, Nuvio's excited to be building a capable team and valued partnerships.

Amiad Zionpur

Amiad and Matt met early in Stedi's journey, with Amiad initially taking on an advisory role. A forward-thinking operations and supply chain optimization leader, he has extensive general management experience and a passion for helping companies quickly reach their full potential. Over 15 years of strong people-management and systems-management success at companies in diverse industries and at different stages of growth. Analytical and creative thinker with extensive experience in implementing lean concepts and driving change, resulting in successful transformations to a healthy, steady, and profitable growth. Excellent communicator adept at leading small and large diverse teams as a company goes through operational transformation.

As Amiad's COO, running

Digital Marketing Lead

Stedi™ was founded by Matt Cumella, a Boston area Doctor of Physical Therapy board certified in Geriatrics. With 10 years experience treating complex injury and geriatric populations, he has encountered countless scenarios with patients where the capability of their assistive device felt like the missing link between them and their mobility goals. Additionally, because use of assistive equipment is highly correlated with requiring a supportive network of family, caregivers and/or clinicians, he felt the gaps in equipment options were exposing lost opportunities for improvement in his and his team's quality of care, and adding undue burden and costs to family.

Leveraging these experiences and a deep understanding of the way we move, he began devising devices to support more optimal mobility. After many hundreds of hours in the garage, Stedi and the Reaction Stabilizer were born.

Armed with a passion to optimize mobility when and where it's difficult, we're excited to be building a capable team and valued partnerships.

Inertia PD

Inertia Product Development has a reputation for product innovation and award winning design across many verticals, including medical device and consumer products. They've been a proud partner in the development of Stedi's devices.

MATTER Healthtech Accelerator

We are a proud member of MATTER, the premier healthcare incubator and innovation hub, including hundreds of cutting-edge startups from around the world, working together with dozens of hospitals and health systems, universities and industry-leading companies to build the future of healthcare. Together, the MATTER community is accelerating innovation, advancing care and improving lives. For more information, visit and follow @MATTERhealth.


Efforts In Partnership