{"npi":"1144354945","type":"NPI-1","status":"active","name":{"display":"Dr. Matthew Giefer M.D.","other":[],"first":"MATTHEW","last":"GIEFER","middle":"JOSEPH","credential":"M.D."},"specialty":{"primary_taxonomy":"2080P0206X","primary_taxonomy_description":"Pediatric Gastroenterology Physician","slug":"pediatric-gastroenterology-physician","schema_org_specialty":null,"all":[{"code":"2080P0206X","description":"Pediatric Gastroenterology Physician","primary":false,"state":"WA","license":"MD60085838"},{"code":"2080P0206X","description":"Pediatric Gastroenterology Physician","primary":true,"state":"LA","license":"321248"}]},"addresses":[{"purpose":"LOCATION","street_1":"1514 JEFFERSON HWY","city":"NEW ORLEANS","state":"LA","postal_code":"701212429","country_code":"US","phone":"5048423000","fax":"5048425848"},{"purpose":"MAILING","street_1":"1514 JEFFERSON HWY","city":"NEW ORLEANS","state":"LA","postal_code":"701212429","country_code":"US","phone":"5048424000"}],"license":{"state":"LA","number":"321248"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20191231001042","type_code":"14-10","type_desc":"PRACTITIONER - GASTROENTEROLOGY","state":"LA","pac_id":"4981850476"}]},"enumeration_date":"2007-03-15","last_updated":"2019-12-11","_meta":{"source":"NPPES","snapshot_date":"2019-12-11","doc_url":"https://findmynpi.com/api"}}