{"result_count":1,"results":[{"addresses":[{"address_1":"700 ACKERMAN RD STE 2120","address_purpose":"MAILING","address_type":"DOM","city":"COLUMBUS","country_code":"US","country_name":"United States","fax_number":"614-293-8518","postal_code":"432021559","state":"OH","telephone_number":"614-293-6255"},{"address_1":"6700 UNIVERSITY BLVD","address_purpose":"LOCATION","address_type":"DOM","city":"DUBLIN","country_code":"US","country_name":"United States","fax_number":"614-293-8518","postal_code":"430163508","state":"OH","telephone_number":"614-293-6255"}],"basic":{"certification_date":"2026-04-20","credential":"MD","enumeration_date":"2015-07-13","first_name":"GUILLERMO","last_name":"ORTIZ SAN JUAN","last_updated":"2026-04-20","middle_name":"A.","sex":"M","sole_proprietor":"NO","status":"A"},"created_epoch":"1436810392000","endpoints":[],"enumeration_type":"NPI-1","identifiers":[],"last_updated_epoch":"1776697120000","number":"1083098784","other_names":[],"practiceLocations":[],"taxonomies":[{"code":"207RG0100X","desc":"Internal Medicine, Gastroenterology","license":"35.142043","primary":true,"state":"OH","taxonomy_group":""}]}]}