Health biometrics CrossChx, which uses fingerprint verification for patient identity, has raised $15 million in a Series B round.The investment was led by new investor Khosla Ventures and current investor Drive Capital, according to a company statement.The company's fingerprint identification system uses algorithms to instantly resolve the identities of patients in their network. It uses patient information from healthcare providers to create unique global identities for every patient.The company's software can instantly verify patient identity through fingerprint scanning and alert hospital personnel to potential medical record errors, the statement said. It is currently used at more than 100 hospitals across eight states but has set a goal of expanding it to every state by the end of the year.Earlier this month, Pittsburgh's Monongahela Valley Hospital deployed CrossChx fingerprint registration for patient check-ins to improve medical record security.