Optum Careers - 4500+ Vacancies List Of Opening Vacancies: Optum Careers Front Office Assistant Call Center Representative Clinical Administrative Coordinator Patient Care Coordinator Operating Room Nurse Obstetrician and Gynecology Advanced Practitioner Dermatologist (Pediatric) Medical Assistant MA Optum Pediatric Ophthalmologist Medical Assistant MA LPN Adult Medicine Certified Medical Assistant, CMA Licensed Practical Nurse (LPN) Cardiologist Chief Medical Officer Cardiologist Gastroenterologist Patient Navigator Registered Nurse Adult Primary Care Physician Gastroenterologist