{"npi":"1306890801","type":"NPI-1","status":"active","name":{"display":"Maria Oliva-Hemker M.D.","other":[],"first":"MARIA","last":"OLIVA-HEMKER","middle":"M","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":true,"state":"MD","license":"D39176"}]},"addresses":[{"purpose":"LOCATION","street_1":"601 N CAROLINE ST","city":"BALTIMORE","state":"MD","postal_code":"212870006","country_code":"US","phone":"4109558769"},{"purpose":"MAILING","street_1":"PO BOX 64316","city":"BALTIMORE","state":"MD","postal_code":"212644316","country_code":"US","phone":"4109331241"}],"license":{"state":"MD","number":"D39176"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"0070451200","state":"MD","issuer":null}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20040506000926","type_code":"14-37","type_desc":"PRACTITIONER - PEDIATRIC MEDICINE","state":"MD","pac_id":"8527057546"}]},"enumeration_date":"2006-05-20","last_updated":"2014-02-05","_meta":{"source":"NPPES","snapshot_date":"2014-02-05","doc_url":"https://findmynpi.com/api"}}