{"result_count":1,"results":[{"addresses":[{"address_1":"1351 WASHINGTON BLVD STE 601A","address_purpose":"LOCATION","address_type":"DOM","city":"STAMFORD","country_code":"US","country_name":"United States","fax_number":"203-324-4357","postal_code":"069022450","state":"CT","telephone_number":"203-324-1606"},{"address_1":"1351 WASHINGTON BLVD STE 601A","address_purpose":"MAILING","address_type":"DOM","city":"STAMFORD","country_code":"US","country_name":"United States","fax_number":"203-324-4357","postal_code":"069022450","state":"CT","telephone_number":"203-324-1606"}],"basic":{"certification_date":"2026-08-15","credential":"do","enumeration_date":"2006-10-30","first_name":"FRANK","last_name":"CASTALDI","last_updated":"2026-08-15","middle_name":"PAUL","name_prefix":"Dr.","name_suffix":"--","sex":"M","sole_proprietor":"YES","status":"A"},"created_epoch":"1162225492000","endpoints":[],"enumeration_type":"NPI-1","identifiers":[{"code":"05","desc":"MEDICAID","identifier":"004068409","issuer":null,"state":"CT"},{"code":"01","desc":"Other (non-Medicare)","identifier":"090001074ct01","issuer":"anthem","state":"CT"},{"code":"01","desc":"Other (non-Medicare)","identifier":"7359876831","issuer":"connecticare","state":"CT"}],"last_updated_epoch":"1786803595000","number":"1043396302","other_names":[],"practiceLocations":[],"taxonomies":[{"code":"152W00000X","desc":"Optometrist","license":"1074","primary":true,"state":"CT","taxonomy_group":""}]}]}