{"npi":"1821036419","type":"NPI-1","status":"active","name":{"display":"Dr. Ivan El-Sayed M.D.","other":[],"first":"IVAN","last":"EL-SAYED","middle":"H.","credential":"M.D."},"specialty":{"primary_taxonomy":"207Y00000X","primary_taxonomy_description":"Otolaryngology Physician","slug":"otolaryngology-physician","schema_org_specialty":null,"all":[{"code":"207Y00000X","description":"Otolaryngology Physician","primary":true,"state":"CA","license":"A79136"}]},"addresses":[{"purpose":"LOCATION","street_1":"400 PARNASSUS AVE","city":"SAN FRANCISCO","state":"CA","postal_code":"941432202","country_code":"US","phone":"4153532401","fax":"4153532603"},{"purpose":"MAILING","street_1":"1635 DIVISADERO STREET","city":"SAN FRANCISCO","state":"CA","postal_code":"941430001","country_code":"US","street_2":"SUITE 625, BOX 1821","phone":"4154764029","fax":"4154764150"}],"license":{"state":"CA","number":"A79136"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"00A791360","state":"CA","issuer":null}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20080229000356","type_code":"14-04","type_desc":"PRACTITIONER - OTOLARYNGOLOGY","state":"CA","pac_id":"0547344558"}]},"enumeration_date":"2006-06-03","last_updated":"2007-07-09","_meta":{"source":"NPPES","snapshot_date":"2007-07-09","doc_url":"https://findmynpi.com/api"}}