{"result_count":1,"results":[{"addresses":[{"address_1":"3000 N. HALSTED ST.","address_2":"SUITE 703","address_purpose":"LOCATION","address_type":"DOM","city":"CHICAGO","country_code":"US","country_name":"United States","fax_number":"773-296-7531","postal_code":"60657","state":"IL","telephone_number":"773-296-3390"},{"address_1":"29373 NETWORK PL","address_purpose":"MAILING","address_type":"DOM","city":"CHICAGO","country_code":"US","country_name":"United States","postal_code":"606731293","state":"IL","telephone_number":"847-390-5900"}],"basic":{"certification_date":"2025-03-25","credential":"MD","enumeration_date":"2008-07-14","first_name":"MARK","last_name":"KELDAHL","last_updated":"2025-03-25","middle_name":"LOREN","sex":"M","sole_proprietor":"NO","status":"A"},"created_epoch":"1216072014000","endpoints":[{"address_1":"3000 N Halsted St Ste 509","address_type":"DOM","affiliation":"N","city":"Chicago","contentTypeDescription":"","country_code":"US","country_name":"United States","endpoint":"mkeldahl205985@direct.myadvocateaurora.org","endpointType":"DIRECT","endpointTypeDescription":"Direct Messaging Address","postal_code":"606575194","state":"IL","use":"DIRECT","useDescription":"Direct"},{"address_1":"3000 N Halsted St Ste 509","address_type":"DOM","affiliation":"N","city":"Chicago","contentTypeDescription":"","country_code":"US","country_name":"United States","endpoint":"https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/","endpointType":"FHIR","endpointTypeDescription":"FHIR URL","postal_code":"606575194","state":"IL","useDescription":""}],"enumeration_type":"NPI-1","identifiers":[],"last_updated_epoch":"1742921169000","number":"1114181658","other_names":[],"practiceLocations":[{"address_1":"1325 EASTMORELAND AVE STE 365","address_purpose":"LOCATION","address_type":"DOM","city":"MEMPHIS","country_code":"US","country_name":"United States","fax_number":"901-201-4203","postal_code":"381047542","state":"TN","telephone_number":"901-272-6018"}],"taxonomies":[{"code":"2086S0129X","desc":null,"license":"59517","primary":false,"state":"TN","taxonomy_group":""},{"code":"208600000X","desc":"Surgery","license":"036117220","primary":false,"state":"IL","taxonomy_group":""},{"code":"208600000X","desc":"Surgery","license":"036-117220","primary":true,"state":"IL","taxonomy_group":""}]}]}