{"result_count":1,"results":[{"addresses":[{"address_1":"4200 E SKELLY DR STE 700","address_purpose":"LOCATION","address_type":"DOM","city":"TULSA","country_code":"US","country_name":"United States","fax_number":"918-221-0835","postal_code":"741353256","state":"OK","telephone_number":"918-438-7050"},{"address_1":"PO BOX 305","address_purpose":"MAILING","address_type":"DOM","city":"LOWELL","country_code":"US","country_name":"United States","fax_number":"918-481-4765","postal_code":"727450305","state":"AR","telephone_number":"918-481-4706"}],"basic":{"certification_date":"2025-03-19","credential":"M. D.","enumeration_date":"2005-09-19","first_name":"MARKHAM","last_name":"NIGHTENGALE","last_updated":"2025-03-19","middle_name":"L","sex":"M","sole_proprietor":"NO","status":"A"},"created_epoch":"1127142455000","endpoints":[],"enumeration_type":"NPI-1","identifiers":[{"code":"05","desc":"MEDICAID","identifier":"100131480A","issuer":null,"state":"OK"}],"last_updated_epoch":"1742413252000","number":"1144215971","other_names":[],"practiceLocations":[],"taxonomies":[{"code":"207RG0100X","desc":"Internal Medicine, Gastroenterology","license":"18311","primary":true,"state":"OK","taxonomy_group":""}]}]}