{"result_count":1,"results":[{"addresses":[{"address_1":"2001 MEDICAL PKWY","address_purpose":"LOCATION","address_type":"DOM","city":"ANNAPOLIS","country_code":"US","country_name":"United States","fax_number":"443-481-1360","postal_code":"214013280","state":"MD","telephone_number":"443-481-1000"},{"address_1":"920 ELKRIDGE LANDING RD","address_purpose":"MAILING","address_type":"DOM","city":"LINTHICUM","country_code":"US","country_name":"United States","fax_number":"410-684-2031","postal_code":"210902917","state":"MD","telephone_number":"443-462-5010"}],"basic":{"credential":"MD","enumeration_date":"2005-10-05","first_name":"DAVID","last_name":"MATTESON","last_updated":"2017-07-20","middle_name":"E","name_prefix":"Dr.","name_suffix":"--","sex":"M","sole_proprietor":"NO","status":"A"},"created_epoch":"1128516003000","endpoints":[],"enumeration_type":"NPI-1","identifiers":[{"code":"01","desc":"Other (non-Medicare)","identifier":"1191974","issuer":"Aetna HMO","state":"MD"},{"code":"01","desc":"Other (non-Medicare)","identifier":"145724700","issuer":"Federal Workman's comp","state":"MD"},{"code":"01","desc":"Other (non-Medicare)","identifier":"887BAA 41761203","issuer":"Carefirst BCBS","state":"MD"},{"code":"05","desc":"MEDICAID","identifier":"936200201275971300","issuer":null,"state":"MD"},{"code":"01","desc":"Other (non-Medicare)","identifier":"K5850002","issuer":"Carefirst BCBS","state":"DC"}],"last_updated_epoch":"1500556850000","number":"1053308908","other_names":[],"practiceLocations":[],"taxonomies":[{"code":"208600000X","desc":"Surgery","license":"D0035235","primary":true,"state":"MD","taxonomy_group":""}]}]}