The calcaneal spur is a bony protrusion around the heel bone causing acute heel pain.
The orthopedist is a doctor who specializes in the skeletal muscle system of the human body including bones, joints, ligaments, tendons, muscles and nerves.
A physiatrist is a doctor who specializes in diseases that affect the brain, spinal cord, nerves, bones, joints, ligaments, muscles and tendons and is responsible for restoring lost abilities due to illness or injury.
Remember that for the proper selection of health professional that treats calcaneal spur you must consider the nature, severity and symptoms you are presenting.