{"npi":"1083455430","type":"NPI-1","status":"active","name":{"display":"Jacqueline Sielaff","other":[],"first":"JACQUELINE","last":"SIELAFF"},"specialty":{"primary_taxonomy":"363L00000X","primary_taxonomy_description":"Nurse Practitioner","slug":"nurse-practitioner","schema_org_specialty":null,"all":[{"code":"363L00000X","description":"Nurse Practitioner","primary":true,"state":"IL","license":"209029794"}]},"addresses":[{"purpose":"LOCATION","street_1":"4736 CAL SAG RD STE A","city":"CRESTWOOD","state":"IL","postal_code":"604181423","country_code":"US","phone":"7083907001"},{"purpose":"MAILING","street_1":"4736 CAL SAG RD STE A","city":"CRESTWOOD","state":"IL","postal_code":"604181423","country_code":"US","phone":"7083907001"}],"license":{"state":"IL","number":"209029794"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20240708000266","type_code":"14-50","type_desc":"PRACTITIONER - NURSE PRACTITIONER","state":"IL","pac_id":"8729522370"}]},"enumeration_date":"2024-05-31","last_updated":"2026-01-28","_meta":{"source":"NPPES","snapshot_date":"2026-01-28","doc_url":"https://findmynpi.com/api"}}