{"result_count":1,"results":[{"addresses":[{"address_1":"722 W MAXWELL ST","address_purpose":"LOCATION","address_type":"DOM","city":"CHICAGO","country_code":"US","country_name":"United States","postal_code":"606075002","state":"IL","telephone_number":"668-600-2273"},{"address_1":"440 N WABASH AVE APT 2403","address_purpose":"MAILING","address_type":"DOM","city":"CHICAGO","country_code":"US","country_name":"United States","postal_code":"606117640","state":"IL"}],"basic":{"certification_date":"2025-05-20","credential":"MD","enumeration_date":"2024-03-21","first_name":"MATTHEW","last_name":"CAMPBELL","last_updated":"2025-05-20","sex":"M","sole_proprietor":"NO","status":"A"},"created_epoch":"1711041004000","endpoints":[],"enumeration_type":"NPI-1","identifiers":[],"last_updated_epoch":"1747766690000","number":"1043070436","other_names":[],"practiceLocations":[],"taxonomies":[{"code":"390200000X","desc":"Student in an Organized Health Care Education/Training Program","license":null,"primary":false,"state":null,"taxonomy_group":""},{"code":"207Q00000X","desc":"Family Medicine","license":"125.084101","primary":true,"state":"IL","taxonomy_group":""}]}]}