Abstract: Systems and methods for automatically processing a payment for medical services rendered using a stored patient account. A system may include a processor and a non-transitory, processor-readable storage medium. The non-transitory, processor-readable storage medium may include one or more programming instructions that, when executed, cause the processor to receive a document having medical transaction information and demographic information from a medical service provider, parse the document to obtain the demographic information, determine that the demographic information corresponds to a stored patient account having a preauthorized payment account, and deduct an amount from the preauthorized payment account that corresponds to at least a portion of an amount due obtained from the medical transaction information.