Job Description. Job Description. PRN Physical Therapy is hiring for a Per Diem Floating Physical Therapist Assistant (PTA) to support our outpatient ortho clinics throughout San Diego County. Salary Range: Negotiable and highly competitive. . Salary Range $32 to $42 Hourly. Individual salaries dependent on experience and job related factors. Position Summary. From Carlsbad to El Cajon to Chula Vista, our network of clinics offer flexible hours M...