{"result_count":1,"results":[{"addresses":[{"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"},{"address_1":"1435 N RANDALL RD","address_2":"STE 201","address_purpose":"LOCATION","address_type":"DOM","city":"ELGIN","country_code":"US","country_name":"United States","fax_number":"847-695-4289","postal_code":"60123","state":"IL","telephone_number":"847-695-3168"}],"basic":{"certification_date":"2025-10-03","credential":"M.D.","enumeration_date":"2010-04-08","first_name":"KARTHIK","last_name":"CHALLA","last_updated":"2025-10-03","middle_name":"KUMAR","name_prefix":"Dr.","sex":"M","sole_proprietor":"YES","status":"A"},"created_epoch":"1270750898000","endpoints":[{"address_1":"1435 N Randall Rd","address_2":"Ste 201","address_type":"DOM","affiliation":"N","city":"Elgin","contentTypeDescription":"","country_code":"US","country_name":"United States","endpoint":"kchalla205110@direct.myadvocateaurora.org","endpointType":"DIRECT","endpointTypeDescription":"Direct Messaging Address","postal_code":"60123","state":"IL","use":"DIRECT","useDescription":"Direct"},{"address_1":"1435 N Randall Rd","address_2":"Ste 201","address_type":"DOM","affiliation":"N","city":"Elgin","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":"60123","state":"IL","useDescription":""}],"enumeration_type":"NPI-1","identifiers":[],"last_updated_epoch":"1759517352000","number":"1619293131","other_names":[],"practiceLocations":[],"taxonomies":[{"code":"207RC0000X","desc":"Internal Medicine, Cardiovascular Disease","license":"036-132517","primary":false,"state":"IL","taxonomy_group":""},{"code":"207RI0011X","desc":"Internal Medicine, Interventional Cardiology","license":"036-132517","primary":true,"state":"IL","taxonomy_group":""}]}]}