{"npi":"1821065855","type":"NPI-1","status":"active","name":{"display":"Mrs. Maria Perez Grau MD","other":[],"first":"MARIA","last":"PEREZ GRAU","middle":"ELOISA","credential":"MD"},"specialty":{"primary_taxonomy":"207RH0003X","primary_taxonomy_description":"Hematology & Oncology","slug":"hematology-oncology","schema_org_specialty":"Oncologic","all":[{"code":"207RH0003X","description":"Hematology & Oncology","primary":true,"state":"PR","license":"13570"},{"code":"207RH0003X","description":"Hematology & Oncology","primary":false,"state":"PR","license":"13270"}]},"addresses":[{"purpose":"LOCATION","street_1":"1429 AVE FERNANDEZ JUNCOS","city":"SAN JUAN","state":"PR","postal_code":"009092658","country_code":"US","street_2":"SUITE 4","phone":"7879464401","fax":"7879464490"},{"purpose":"MAILING","street_1":"PO BOX 11367","city":"SAN JUAN","state":"PR","postal_code":"00910","country_code":"US","phone":"7879464401","fax":"7879464490"}],"license":{"state":"PR","number":"13570"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20040807000034","type_code":"14-83","type_desc":"PRACTITIONER - HEMATOLOGY/ONCOLOGY","state":"PR","pac_id":"2062484439"}]},"enumeration_date":"2006-03-08","last_updated":"2019-01-15","_meta":{"source":"NPPES","snapshot_date":"2019-01-15","doc_url":"https://findmynpi.com/api"}}