About Carrington College Carrington College, offers certificate and Associate degree programs* in: Dental Assisting, Dental Hygiene, Fitness Training, Physical Therapy Technology, Diagnostic Medical Sonography, Health Care Administration, Medical Billing and Coding, Massage Therapy, Medical Assisting, Respiratory Care, Medical Laboratory Technology, Physical Therapist Assistant, Medical Office Management, Medical Radiography, Pharmacy Technology, Practical Nursing, Nursing (Registered**), Nursing (Registered Bridge Option) and Veterinary Assisting.