{"npi":"1932271681","type":"NPI-1","status":"active","name":{"display":"Guoping Xu MD","other":[{"code":"2","type":"Professional name","value":"XU, GUOPING"}],"first":"GUOPING","last":"XU","credential":"MD"},"specialty":{"primary_taxonomy":"207RN0300X","primary_taxonomy_description":"Nephrology Physician","slug":"nephrology-physician","schema_org_specialty":null,"all":[{"code":"207RN0300X","description":"Nephrology Physician","primary":true,"state":"CA","license":"A62062"}]},"addresses":[{"purpose":"LOCATION","street_1":"275 W MACARTHUR BLVD","city":"OAKLAND","state":"CA","postal_code":"946115641","country_code":"US","phone":"5107521000"},{"purpose":"MAILING","street_1":"275 W MACARTHUR BLVD","city":"OAKLAND","state":"CA","postal_code":"946115641","country_code":"US","phone":"5107521000"}],"license":{"state":"CA","number":"A62062"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"00A620620","state":"CA","issuer":null}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20110404000269","type_code":"14-39","type_desc":"PRACTITIONER - NEPHROLOGY","state":"CA","pac_id":"9638353493"}]},"enumeration_date":"2006-11-15","last_updated":"2022-01-06","_meta":{"source":"NPPES","snapshot_date":"2022-01-06","doc_url":"https://findmynpi.com/api"}}