Results of medical tests for sexually transmissible diseases (STDs) or other medical conditions such as drug use are posted to a registry site accessible by a subscriber and any authorized guest of the subscriber. The medical test results are associated with a verification of the subscriber's identity. The verification may be in the form of a driver's license number, or other indicia of identification, recorded when a test sample was drawn by a testing lab affiliated with the registry site. Results of the test performed by the testing lab are automatically posted to the registry site, along with the customer ID assigned to the subscriber when registering with the registry site, and the verification of the subscriber's identity. Subsequently, the subscriber and any authorized guest or prospective sexual partner can access the subscriber's test results and the verification of the subscriber's identity by entering a predefined password or other access code, thereby enabling the guest, who may be a prospective sexual partner, to verify a medical condition asserted by the subscriber.