{"result_count":1,"results":[{"addresses":[{"address_1":"25 N WINFIELD RD STE 410","address_purpose":"MAILING","address_type":"DOM","city":"WINFIELD","country_code":"US","country_name":"United States","fax_number":"630-933-4210","postal_code":"601901379","state":"IL","telephone_number":"630-933-4200"},{"address_1":"25 N WINFIELD RD STE 410","address_purpose":"LOCATION","address_type":"DOM","city":"WINFIELD","country_code":"US","country_name":"United States","fax_number":"630-933-4210","postal_code":"601901379","state":"IL","telephone_number":"630-933-4200"}],"basic":{"certification_date":"2025-11-13","credential":"M.D.","enumeration_date":"2016-06-08","first_name":"MARTIN","last_name":"GREENWALD","last_updated":"2025-11-13","middle_name":"LUKE","sex":"M","sole_proprietor":"YES","status":"A"},"created_epoch":"1465414764000","endpoints":[],"enumeration_type":"NPI-1","identifiers":[],"last_updated_epoch":"1763056021000","number":"1093164238","other_names":[],"practiceLocations":[],"taxonomies":[{"code":"2084P0800X","desc":"Psychiatry & Neurology, Psychiatry","license":"036152584","primary":true,"state":"IL","taxonomy_group":""},{"code":"2084S0012X","desc":"Psychiatry & Neurology, Sleep Medicine","license":"036152584","primary":false,"state":"IL","taxonomy_group":""}]}]}