No Referrals Required

Physician Assistants

Physician assistants are an integral part of the care team at Rockford Spine Center. Each physician assistant works with a supervising surgeon to evaluate and treat patients, providing an additional layer of expertise, support and compassion.

Physician assistants are certified and licensed medical professionals who perform a wide range of services, including conducting physical exams, diagnosing conditions and developing treatment plans, prescribing medication and administering injections. Physician assistants care for patients both at the office and at the hospital.


Jason Kadar, PA-C

Jason Kadar, PA-C


Jason has worked as Dr Sliva’s physician assistant since June of 2020.  Prior to joining Rockford Spine Center, he worked within a multi-subspecialized orthopedic practice at OrthoIllinois in Rockford.  Jason earned a master’s in physician assistant studies from Marywood University, and a bachelor’s in athletic training/sports medicine at Indiana State University.  He is certified by the National Commission of Certification of Physician Assistants.

Jason strives to help educate each patients in a manner that is comprehendible on their own level of understanding.  “I really want them to have confidence in knowing each aspect of their diagnosis and treatment plan in place.”

Jason enjoys spending time with his son and significant other in his time outside of work.  He enjoys traveling and exploring new places with his family.

Matthew Schwabero, PA-C

Matthew Schwabero, PA-C

Matt has worked as Dr. Roh’s physician assistant in Rockford since 2002, and he has been a part of the Spine Center since it opened in 2003. Matt earned a master’s degree in biomedical science from the Medical College of Ohio and a bachelor’s in sports medicine from Central Michigan University. He is certified by the National Commission on Certification of Physician Assistants and is a member of the American Academy of Physician Assistants.

Matt strives to make patients and their families feel as comfortable as possible. “I try to treat patients as I would expect my own family to be treated.”

Matt lives with his wife and son. When he’s not working, he enjoys boating, golfing and volunteering with his church.

Sean Soare, PA-C

Sean Soare, PA-C

Sean is Dr. Sweet’s physician assistant. His previous experience includes four years as an Army combat medic and work in a neurosurgery practice in Florida. He joined Rockford Spine Center in 2004 because he wanted the opportunity to focus exclusively on spine care. Sean has a degree in physician assistant studies from Rocky Mountain University in Billings, Montana. He is certified by the National Commission on Certification of Physician Assistants and is a member of the American Academy of Physician Assistants.

Sean believes in treating patients like members of his own family. “I’m really grateful for the opportunity to be able to help people improve their quality of life.”

Sean has a private pilot license and enjoys flying in his free time. He returns home to Montana frequently for hiking and fly fishing.