{"npi":"1669600086","type":"NPI-1","status":"active","name":{"display":"Chengyu Xu M.D.","other":[],"first":"CHENGYU","last":"XU","credential":"M.D."},"specialty":{"primary_taxonomy":"207RE0101X","primary_taxonomy_description":"Endocrinology, Diabetes & Metabolism Physician","slug":"endocrinology-diabetes-metabolism-physician","schema_org_specialty":null,"all":[{"code":"207R00000X","description":"Internal Medicine","primary":false,"state":"CA","license":"A121215"},{"code":"207RE0101X","description":"Endocrinology, Diabetes & Metabolism Physician","primary":true,"state":"CA","license":"A121215"}]},"addresses":[{"purpose":"LOCATION","street_1":"386 GELLERT BLVD","city":"DALY CITY","state":"CA","postal_code":"940152611","country_code":"US","phone":"6507613500","fax":"6507613580"},{"purpose":"MAILING","street_1":"386 GELLERT BLVD","city":"DALY CITY","state":"CA","postal_code":"940152611","country_code":"US","phone":"6507613500"}],"license":{"state":"CA","number":"A121215"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20140516000268","type_code":"14-46","type_desc":"PRACTITIONER - ENDOCRINOLOGY","state":"CA","pac_id":"1355564501"}]},"enumeration_date":"2009-06-24","last_updated":"2022-01-04","_meta":{"source":"NPPES","snapshot_date":"2022-01-04","doc_url":"https://findmynpi.com/api"}}