{"result_count":1,"results":[{"addresses":[{"address_1":"PO BOX 749112","address_purpose":"MAILING","address_type":"DOM","city":"ATLANTA","country_code":"US","country_name":"United States","postal_code":"303749112","state":"GA"},{"address_1":"1215 LEE ST","address_purpose":"LOCATION","address_type":"DOM","city":"CHARLOTTESVILLE","country_code":"US","country_name":"United States","fax_number":"434-982-0019","postal_code":"229081544","state":"VA","telephone_number":"434-924-2283"}],"basic":{"certification_date":"2026-02-27","credential":"MD, MPH","enumeration_date":"2008-06-17","first_name":"MICHAEL","last_name":"MAZZEFFI","last_updated":"2026-02-27","middle_name":"A","name_prefix":"Dr.","sex":"M","sole_proprietor":"NO","status":"A"},"created_epoch":"1213721543000","endpoints":[],"enumeration_type":"NPI-1","identifiers":[],"last_updated_epoch":"1772204610000","number":"1053571687","other_names":[],"practiceLocations":[],"taxonomies":[{"code":"207RC0200X","desc":"Internal Medicine, Critical Care Medicine","license":"0101261835","primary":false,"state":"VA","taxonomy_group":""},{"code":"207L00000X","desc":"Anesthesiology","license":"D0076074","primary":false,"state":"MD","taxonomy_group":""},{"code":"207LC0200X","desc":"Anesthesiology, Critical Care Medicine","license":"D0076074","primary":false,"state":"MD","taxonomy_group":""},{"code":"207L00000X","desc":"Anesthesiology","license":"0101261835","primary":true,"state":"VA","taxonomy_group":""}]}]}