What does ocs certification in physical therapy mean?

Well trained! Ocs(orthopedic clinical specialist) means that the p.T. Has achieved a higher level of training; and has a certain level of expertise above and beyond the base certification. It means you are in 'good hands'; literally.
Orthopedic PT. Orthopedic certified specialist ocs certification can be obtained in specialties including cardiovascular and pulmonary, clinical electrophysiology, geriatrics, neurology, orthopedics, pediatrics, sports or women’s health.