Systems and methods for aggregating available healthcare appointment times across multiple unaffiliated practitioner groups, including search and display algorithms. A centralized marketplace is provided for real time booking of healthcare appointments which does not require the patient to have a preexisting relationship with the practitioner. The aggregated booking system enhances the number of available near term and conveniently located appointment options while the search and display algorithms reduce the complexity of the patient and practitioner information required to maintain accurate and synchronized database booking records.