Physical therapist assistant, physical therapy assistant, physical therapy, PTA, therapy assistant, allied, allied health, rehabilitation assistant, rehabilitation, skilled physical therapist assistant, skilled PTA, skilled care PTA, skilled AMN Healthcare Allied Job ID #3559993. Certified Occupational Therapy Assistant (COTA) – Outpatient Pediatrics | Tullahoma, TN Reputable outpatient clinic in Tullahoma, TN is seeking a highly motivated and energetic Certified Occupational Therapy Assistant (COTA) to join their growing team.