States With the Highest Orthopedic Physician Assistant Salaries. The average approximate top salaries for orthopedic physician assistants by state are: 1) Arizona. Annual Pay: $129,000. 2) Florida. $124,000. 3) Texas.rthopedic Physician Assistant Salary. Working in an orthopedic office can be an exciting and interesting career. Orthopedists work to correct injuries or disorders of the skeletal system, through re-patterning, re-aligning, and strengthening the associated muscles, joints, and ligaments.