Johnna Walker works with Dr. Peter Callander caring for patients with a variety of orthopaedic issues. She joined California Pacific Orthopaedics in 2015 after being a physician assistant for over six years.

Johnna received her bachelor’s degree in psychology at Baylor University in Texas. She also minored in pre-med. Her original intention was to become a surgeon, but an encounter as a patient seeing a physician assistant influenced her to seek her master’s degree in Physician Assistant Studies in Lock Haven University in Pennsylvania. During her studies she focused on orthopaedic surgery.

After working with an orthopaedic surgeon’s office in Houston, she moved to the Bay Area and subsequently joined California Pacific Orthopaedics.