{"result_count":1,"results":[{"addresses":[{"address_1":"PO BOX 5074","address_purpose":"MAILING","address_type":"DOM","city":"SIOUX FALLS","country_code":"US","country_name":"United States","postal_code":"571175074","state":"SD"},{"address_1":"1309 W 17TH ST STE G01","address_purpose":"LOCATION","address_type":"DOM","city":"SIOUX FALLS","country_code":"US","country_name":"United States","postal_code":"571044664","state":"SD","telephone_number":"605-312-3400"}],"basic":{"certification_date":"2025-12-09","credential":"MD","enumeration_date":"2008-10-07","first_name":"CATHERINE","last_name":"HAJEK","last_updated":"2025-12-09","middle_name":"A","sex":"F","sole_proprietor":"NO","status":"A"},"created_epoch":"1223416864000","endpoints":[],"enumeration_type":"NPI-1","identifiers":[],"last_updated_epoch":"1765313234000","number":"1528219664","other_names":[],"practiceLocations":[],"taxonomies":[{"code":"207R00000X","desc":"Internal Medicine","license":"8557","primary":true,"state":"SD","taxonomy_group":""},{"code":"207R00000X","desc":"Internal Medicine","license":"261236","primary":false,"state":"NY","taxonomy_group":""}]}]}