{"npi":"1104951250","type":"NPI-1","status":"active","name":{"display":"Dan Mihailescu MD","other":[],"first":"DAN","last":"MIHAILESCU","middle":"VALENTIN","credential":"MD"},"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":"IL","license":"036-101988"},{"code":"207RE0101X","description":"Endocrinology, Diabetes & Metabolism Physician","primary":true,"state":"IL","license":"036101988"}]},"addresses":[{"purpose":"LOCATION","street_1":"1819 W POLK ST","city":"CHICAGO","state":"IL","postal_code":"606124356","country_code":"US","street_2":"SECTION OF ENDOCRINOLOGY (MC 640)","phone":"3129966062"},{"purpose":"MAILING","street_1":"1448 S STATE ST","city":"CHICAGO","state":"IL","postal_code":"606052803","country_code":"US"}],"license":{"state":"IL","number":"036101988"},"identifiers":[{"type_code":"01","label":"Other","value":"185769","state":null,"issuer":"PROVIDER NUMBER"}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20070810000092","type_code":"14-46","type_desc":"PRACTITIONER - ENDOCRINOLOGY","state":"IL","pac_id":"4880785401"}]},"enumeration_date":"2007-02-22","last_updated":"2021-04-27","_meta":{"source":"NPPES","snapshot_date":"2021-04-27","doc_url":"https://findmynpi.com/api"}}