{"npi":"1871533455","type":"NPI-1","status":"active","name":{"display":"Aaron Chen MD","other":[],"first":"AARON","last":"CHEN","middle":"EDWARD","credential":"MD"},"specialty":{"primary_taxonomy":"207P00000X","primary_taxonomy_description":"Emergency Medicine","slug":"emergency-medicine","schema_org_specialty":"Emergency","all":[{"code":"2080P0204X","description":"Pediatric Emergency Medicine","primary":false,"state":"MD","license":"D60147"},{"code":"207P00000X","description":"Emergency Medicine","primary":true,"state":"PA","license":"MD439804"},{"code":"207PP0204X","description":"Pediatric Emergency Medicine (Emergency Medicine) Physician","primary":false,"state":"PA","license":"MD439804"}]},"addresses":[{"purpose":"LOCATION","street_1":"3401 CIVIC CENTER BLVD","city":"PHILADELPHIA","state":"PA","postal_code":"191044319","country_code":"US","street_2":"CHILDREN'S HOSPITAL OF PHILADELPHIA - EMERGENCY MED","phone":"2155901944","fax":"2155904454"},{"purpose":"MAILING","street_1":"100 E PENN SQ","city":"PHILADELPHIA","state":"PA","postal_code":"191073323","country_code":"US","street_2":"9TH FL","phone":"2674259234","fax":"2674259299"}],"license":{"state":"PA","number":"MD439804"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20101112000703","type_code":"14-93","type_desc":"PRACTITIONER - EMERGENCY MEDICINE","state":"PA","pac_id":"3779470158"}]},"enumeration_date":"2006-06-08","last_updated":"2014-12-15","_meta":{"source":"NPPES","snapshot_date":"2014-12-15","doc_url":"https://findmynpi.com/api"}}