{"result_count":1,"results":[{"addresses":[{"address_1":"6355 WALKER LN STE 202","address_purpose":"MAILING","address_type":"DOM","city":"ALEXANDRIA","country_code":"US","country_name":"United States","fax_number":"703-797-6981","postal_code":"223103246","state":"VA","telephone_number":"571-472-6464"},{"address_1":"6355 WALKER LN STE 202","address_purpose":"LOCATION","address_type":"DOM","city":"ALEXANDRIA","country_code":"US","country_name":"United States","fax_number":"703-797-6981","postal_code":"223103246","state":"VA","telephone_number":"571-472-6464"}],"basic":{"certification_date":"2026-03-20","credential":"MD, FRCSC","enumeration_date":"2019-11-14","first_name":"TAN","last_name":"CHEN","last_updated":"2026-03-20","name_prefix":"Dr.","sex":"M","sole_proprietor":"NO","status":"A"},"created_epoch":"1573766359000","endpoints":[{"address_1":"1175 E Mountain Blvd","address_type":"DOM","affiliation":"N","city":"Wilkes Barre","contentTypeDescription":"","country_code":"US","country_name":"United States","endpoint":"tchen287468@direct.geisinger.edu","endpointType":"DIRECT","endpointTypeDescription":"Direct Messaging Address","postal_code":"187027906","state":"PA","use":"DIRECT","useDescription":"Direct"}],"enumeration_type":"NPI-1","identifiers":[],"last_updated_epoch":"1774006875000","number":"1528603370","other_names":[],"practiceLocations":[{"address_1":"100 N ACADEMY AVE","address_purpose":"LOCATION","address_type":"DOM","city":"DANVILLE","country_code":"US","country_name":"United States","postal_code":"178229800","state":"PA","telephone_number":"800-275-6401"},{"address_1":"1175 E MOUNTAIN BLVD","address_purpose":"LOCATION","address_type":"DOM","city":"WILKES BARRE","country_code":"US","country_name":"United States","postal_code":"187027906","state":"PA","telephone_number":"570-808-1093"}],"taxonomies":[{"code":"207X00000X","desc":"Orthopaedic Surgery","license":"MD469124","primary":false,"state":"PA","taxonomy_group":""},{"code":"207XS0117X","desc":"Orthopaedic Surgery, Orthopaedic Surgery of the Spine","license":"MD469124","primary":false,"state":"PA","taxonomy_group":""},{"code":"207X00000X","desc":"Orthopaedic Surgery","license":"0101286896","primary":true,"state":"VA","taxonomy_group":""}]}]}