Rate and review Doctor Preston on patientschoice.org. This physician has current office locations in Columbus, OH and has been practicing for over 21 years in their current profession. Post reviews on other Critical Care Practitioner, Internists who you have had positive or negative office visit experiences with in the past. PCA empowers the patient with information to help you make a more informed decision when choosing a qualified doctor in your area. If you think you have an excellent Critical Care Practitioner, Internist then show your appreciation and help nominate Doctor Preston as a Patients' Choice Award winner.