{"result_count":1,"results":[{"addresses":[{"address_1":"26991 CROWN VALLEY PKWY STE 100","address_purpose":"LOCATION","address_type":"DOM","city":"MISSION VIEJO","country_code":"US","country_name":"United States","postal_code":"926916511","state":"CA","telephone_number":"949-582-5430"},{"address_1":"PO BOX 35380","address_2":"SUITE 120","address_purpose":"MAILING","address_type":"DOM","city":"LAS VEGAS","country_code":"US","country_name":"United States","postal_code":"891335380","state":"NV"}],"basic":{"certification_date":"2025-09-04","credential":"M.D.","enumeration_date":"2005-12-23","first_name":"MARK","last_name":"HAUPTMAN","last_updated":"2025-09-04","middle_name":"D","name_prefix":"Dr.","sex":"M","sole_proprietor":"NO","status":"A"},"created_epoch":"1135370660000","endpoints":[],"enumeration_type":"NPI-1","identifiers":[{"code":"05","desc":"MEDICAID","identifier":"00G553560","issuer":null,"state":"CA"}],"last_updated_epoch":"1756959655000","number":"1801873427","other_names":[],"practiceLocations":[{"address_1":"26800 CROWN VALLEY PKWY","address_2":"SUITE 305","address_purpose":"LOCATION","address_type":"DOM","city":"MISSION VIEJO","country_code":"US","country_name":"United States","fax_number":"949-364-3213","postal_code":"926916384","state":"CA","telephone_number":"949-364-6000"}],"taxonomies":[{"code":"207R00000X","desc":"Internal Medicine","license":"G55356","primary":true,"state":"CA","taxonomy_group":""}]}]}