Description. Vertis Therapy is looking for a dedicated Physical Therapy Assistant for consistent PRN hours weekly at our beautiful Assisted Living Facility in Clarksdale, MS. Vertis Therapy is a therapist-owned and operated company that focuses on providing quality, patient-centered care. 1 : 1 Treatments. Flexible Schedule. Premium RateThe Physical Therapist Assistant (PTA) performs physical therapy treatments under the clinical supervision of t...