{"result_count":1,"results":[{"addresses":[{"address_1":"575 N SIOUX POINT ROAD","address_purpose":"MAILING","address_type":"DOM","city":"DAKOTA DUNES","country_code":"US","country_name":"United States","fax_number":"605-217-2900","postal_code":"570495312","state":"SD","telephone_number":"605-217-2667"},{"address_1":"575 N SIOUX POINT ROAD","address_purpose":"LOCATION","address_type":"DOM","city":"DAKOTA DUNES","country_code":"US","country_name":"United States","fax_number":"605-217-2900","postal_code":"570495312","state":"SD","telephone_number":"605-217-2667"}],"basic":{"certification_date":"2025-12-10","credential":"DO","enumeration_date":"2007-04-26","first_name":"JEFFREY","last_name":"MICHALAK","last_updated":"2025-12-10","middle_name":"PATRICK","sex":"M","sole_proprietor":"NO","status":"A"},"created_epoch":"1177623811000","endpoints":[],"enumeration_type":"NPI-1","identifiers":[{"code":"05","desc":"MEDICAID","identifier":"1962622431","issuer":null,"state":"SD"},{"code":"05","desc":"MEDICAID","identifier":"1962622431","issuer":null,"state":"IA"},{"code":"05","desc":"MEDICAID","identifier":"1962622431","issuer":null,"state":"NH"}],"last_updated_epoch":"1765384964000","number":"1962622431","other_names":[],"practiceLocations":[{"address_1":"705 N SIOUX POINT RD","address_2":"SUITE 100","address_purpose":"LOCATION","address_type":"DOM","city":"DAKOTA DUNES","country_code":"US","country_name":"United States","fax_number":"605-217-5515","postal_code":"570495091","state":"SD","telephone_number":"605-217-5500"}],"taxonomies":[{"code":"207RG0100X","desc":"Internal Medicine, Gastroenterology","license":"933","primary":false,"state":"NE","taxonomy_group":""},{"code":"207RG0100X","desc":"Internal Medicine, Gastroenterology","license":"DO-04307","primary":false,"state":"IA","taxonomy_group":""},{"code":"207RG0100X","desc":"Internal Medicine, Gastroenterology","license":"8388","primary":true,"state":"SD","taxonomy_group":""}]}]}