Staff Profiles

William P. Kearney, CO

Bill Kearney, CO

Office: Riverside, CA

Bill Kearney, C.O. opened Johnson's Orthopedic of Riverside in 1983. He has created a company where customer service and patient care is the trademark of his business. Bill directs and oversees the daily operation of all three offices. He received his education and training in orthotics from Cerritos College, Rancho Los Amigos Hospital and University of California, Los Angeles. He is a member of the American Orthotic and Prosthetic Association, California Orthotic and Prosthetic Association and American Academy of Orthotics and Prosthetics. Bill lectures yearly for the physical therapy department at Loma Linda University on Pediatric Orthotics and Prosthetics. Bill's experience includes providing custom ortht otics for patients of all ages. He specializes in pediatric patients with cerebral palsy, spina bifida, osteogensis imperfecta and arthrogyposis.

Jan Krzeminski, CO

Jan Krzeminski, CO

Office: Riverside & Hesperia, CA

Jan Krzeminski, C.O. joined Johnson's Orthopedics in 1997. He is in charge of operations for our Hesperia Office. He began working in the orthotics field in 1976. He received his education and training in orthotics from University of California, Los Angeles and Long Beach VA Hospital. Entering the field he felt great satisfaction designing and developing systems to enhance patient function. Jan continues to develop new types of orthotic designs to work in neurological rehabilitation and is also working with state of the art orthopedic control systems (DBS). These DBS systems enable patients to walk, run and perform functional activities which otherwise would not be obtainable with conventional orthotics. Jan's scope of practice is adult and pediatric custom orthotics. He specializes in patients with spinal cord injury, stroke, partial paralysis, CMT, post polio and traumatic brain injuries.

Kevin Taylor, CO

Kevin Taylor, CO

Office: Pomona, CA

Kevin Taylor, CO. joined Johnson's Orthopedics in 1998. He is in charge of operations for our Pomona Office. He began his orthotics career in 1993. He received his degree in Kinesiology from California State University Northridge. He received his orthotics education and training from Northwestern University. Kevin has experience working with pediatric, adult and geriatric patients. He specializes in working with children with cerebral palsy, spina bifida and other neurological conditions providing custom bracing for both the pediatric and adult population.

Fred Callahan, CO

Fred Callahan, CO

Office: Riverside, CA

Fred Callahan, CO. joined Johnson's Orthopedics in 1986. He began his career in a technical position as a Bench Technician and Lab Manager. His technical training inspired him to pursue the clinical aspect of the practice. In 2004 he became American Board Certified in Orthotics. Fred's experience includes working with patients of all ages from pediatrics to adults and geriatrics providing a wide range of orthotic services.

Hector Ruvalcaba, BOCP

Hector Ruvalcaba, BOCP

Office: Riverside, CA

Hector Ruvalcaba, BOCP joined Johnson's Orthopedic in 1990. He has been working in the orthotic and prosthetic field for 21 years. He began his career in a technical position where he trained in fabrication and assembly of orthotic and prosthetic devices. The technical training inspired him to purse the clinical aspect of the practice and he became BOCP certified in 2007. Hector has experience in orthotics and prosthetics with patients of all ages from pediatrics to adults and geriatrics. He is bilingual and assists our Spanish Speaking patients. *Se habla espanol

Melanie Dye, CO, CPA, CFm

Melanie Dye, CO, CPA, CFm

Office: Riverside & Pomona, CA

Melanie Dye, CO, CPA, CFm joined Johnson's Orthopedic in 2011. She received a BS degree in Physiology from California State University Fresno. Her orthotics and prosthetics education and training were completed at California State University Dominguez Hills. She began working in the field in 2000. Melanie's experience includes working with patients of all ages from pediatrics to adults and geriatrics. Her specialties include cranial helmets for babies with positional plagiocephaly, scoliosis bracing for adolescents and post mastectomy fittings for women. Melanie enjoys educating her patients to help them understand the process that they are going through as well as the benefits that they can expect.

Amber Thill, BS, MSOP, CPO

Amber Thill, BS, MSOP, CPO

Office: Riverside, CA

Specialty Devices: Pediatric and Geriatric AFO’s, Spinal TLSO’s, and Cranial Remolding Helmets

Amber attended Cal State University of San Bernardino to obtain her Bachelors of Science degree in Kinesiology in 2011. While in undergraduate school she worked as a Physical Therapist Aide which led her to the Orthotics and Prosthetic field. Amber then attended Loma Linda University for graduate school. She received her Masters of Science degree in 2014, specializing in both Orthotics and Prosthetics. While attending Loma Linda University, Amber started volunteering at Johnson’s Orthopedic and continued to complete her two years of residency after graduation. Johnson’s Orthopedic hired her full-time while she studied for her ABC board exams. She is now an ABC certified CPO.

Amber provides excellent care for all patient populations in need of Orthotics and Prosthetics. She completed research in myoelectric training protocols for upper extremity amputees, is certified through Orthomerica for cranial remolding helmets and is now a member of the American Orthotic and Prosthetic Association. She continues to give back to the community by volunteering yearly with Challenged Athletes foundation, Ossur Running Clinic, and PossAbilities Tri-Athlon.

In addition to being Johnson’s Orthopedics’ newest Practitioner, she is also their Resident Coordinator in helping other students like herself get the best hands on experience they need.

Mike Openshaw, CPO

Mike Openshaw, CPO

Mike Openshaw, CPO joined Johnson’s Orthopedic in 2010. He is in charge of our Prosthetic Department and travels to all three of our offices to see our prosthetic patients. Mike grew up in the prosthetic field working with his father and older brother and he officially began his career in 1991. He discovered his love for the field at a young age which inspired him to pursue his orthotic and prosthetic education at California State University, Dominguez Hills. Mike’s experience includes working with patients of all ages from pediatrics to adults and geriatrics. He enjoys working with challenging cases and finding new ways to overcome obstacles in order to provide his patients with the best possible care. He often takes on specialty cases for select charity groups and he also participates in an annual mission trip to Belize with Global Amputee Outreach to offer his prosthetic services. Mike also enjoys teaching students and residents in the O&P field. He is our ABC Residency Director who oversees all of our past and present orthotic and prosthetic residents.