Keyword: receptionist, prior authorization, call center, PBX, operator, insurance specialist, registration, patient registration specialist, patient access representative, patient service representative, Required Experience: Must use good judgment, professionalism and discretion when screening telephone calls, answering inquires and relaying appropriate information. Boulder Medical Center (BMC) is a local, independent, and physician-owned medical group with over 20 primary and specialty care departments, 90 providers, and 325+ clinical and support professionals.