{"result_count":1,"results":[{"addresses":[{"address_1":"2201 HENDERSON MILL RD NE STE 160","address_purpose":"MAILING","address_type":"DOM","city":"ATLANTA","country_code":"US","country_name":"United States","postal_code":"303452711","state":"GA"},{"address_1":"4500 MEMORIAL DR STE 400","address_purpose":"LOCATION","address_type":"DOM","city":"BELLEVILLE","country_code":"US","country_name":"United States","fax_number":"314-996-7658","postal_code":"622265360","state":"IL","telephone_number":"618-233-3066"}],"basic":{"certification_date":"2025-09-30","credential":"MD","enumeration_date":"2006-07-09","first_name":"CONCEPCION","last_name":"SANTILLAN","last_updated":"2025-09-30","middle_name":"ESTEBAN","name_prefix":"Dr.","sex":"F","sole_proprietor":"YES","status":"A"},"created_epoch":"1152425033000","endpoints":[{"address_1":"4500 Memorial Dr Ste 400","address_type":"DOM","affiliation":"N","city":"Belleville","contentType":"CSV","contentTypeDescription":"CSV","country_code":"US","country_name":"United States","endpoint":"https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/","endpointDescription":"BJC","endpointType":"FHIR","endpointTypeDescription":"FHIR URL","postal_code":"622265360","state":"IL","use":"HIE","useDescription":"Health Information Exchange (HIE)"}],"enumeration_type":"NPI-1","identifiers":[{"code":"05","desc":"MEDICAID","identifier":"32837700","issuer":null,"state":"WI"},{"code":"05","desc":"MEDICAID","identifier":"34626300","issuer":null,"state":"WI"}],"last_updated_epoch":"1759244783000","number":"1083647408","other_names":[{"code":"1","credential":"MD","first_name":"CONCEPCION","last_name":"ESTEBAN","middle_name":"G","type":"Former Name"}],"practiceLocations":[{"address_1":"1000 JOHNSON FERRY RD","address_purpose":"LOCATION","address_type":"DOM","city":"ATLANTA","country_code":"US","country_name":"United States","fax_number":"404-303-3759","postal_code":"303421606","state":"GA","telephone_number":"404-851-8000"},{"address_1":"8201 E RIVERSIDE BLVD","address_purpose":"LOCATION","address_type":"DOM","city":"ROCKFORD","country_code":"US","country_name":"United States","postal_code":"611142300","state":"IL","telephone_number":"815-971-7000"}],"taxonomies":[{"code":"2084N0400X","desc":"Psychiatry & Neurology, Neurology","license":"036151944","primary":false,"state":"IL","taxonomy_group":""},{"code":"2084N0400X","desc":"Psychiatry & Neurology, Neurology","license":"101659","primary":true,"state":"GA","taxonomy_group":""},{"code":"2084N0400X","desc":"Psychiatry & Neurology, Neurology","license":"47916","primary":false,"state":"WI","taxonomy_group":""},{"code":"2084N0400X","desc":"Psychiatry & Neurology, Neurology","license":"C171642","primary":false,"state":"CA","taxonomy_group":""}]}]}