{"result_count":1,"results":[{"addresses":[{"address_1":"660 S 200 E STE 250","address_purpose":"LOCATION","address_type":"DOM","city":"SALT LAKE CITY","country_code":"US","country_name":"United States","postal_code":"841113846","state":"UT","telephone_number":"801-359-2256"},{"address_1":"5961 S LOS ALTOS PKWY STE 101","address_2":"STE 101","address_purpose":"MAILING","address_type":"DOM","city":"SPARKS","country_code":"US","country_name":"United States","fax_number":"775-359-2676","postal_code":"894362501","state":"NV","telephone_number":"775-359-2020"}],"basic":{"certification_date":"2024-12-19","credential":"O.D.","enumeration_date":"2006-01-13","first_name":"KEITH","last_name":"CASTLETON","last_updated":"2024-12-19","middle_name":"J.","name_prefix":"Dr.","sex":"M","sole_proprietor":"NO","status":"A"},"created_epoch":"1137195405000","endpoints":[],"enumeration_type":"NPI-1","identifiers":[],"last_updated_epoch":"1734629963000","number":"1730168071","other_names":[],"practiceLocations":[],"taxonomies":[{"code":"152W00000X","desc":"Optometrist","license":"5350538-9934","primary":false,"state":"UT","taxonomy_group":""},{"code":"152W00000X","desc":"Optometrist","license":"1475","primary":true,"state":"AZ","taxonomy_group":""}]}]}