UVM Medical Center Phone Numbers; Patient Financial Services Customer Service 802-847-8000 or 800-639-2719: Pre-Registration (Physician Appointments) 802-847-5769 or 800-303-1939: Pre-Admissions (Hospital Procedures) 802-847-6939 or 866-631-4215: Anesthesia Billing Questions (Professional Anesthesia Recovery (PAR) Management 866-727-2040.