{"npi":"1063405546","type":"NPI-1","status":"active","name":{"display":"Frances Langdon MD","other":[],"first":"FRANCES","last":"LANGDON","middle":"J","credential":"MD"},"specialty":{"primary_taxonomy":"207R00000X","primary_taxonomy_description":"Internal Medicine","slug":"internal-medicine","schema_org_specialty":"Internal","all":[{"code":"207R00000X","description":"Internal Medicine","primary":true,"state":"IL","license":"036074842"}]},"addresses":[{"purpose":"LOCATION","street_1":"676 N SAINT CLAIR ST","city":"CHICAGO","state":"IL","postal_code":"606112927","country_code":"US","street_2":"STE 2300","phone":"3129266000","fax":"3129266600"},{"purpose":"MAILING","street_1":"676 N SAINT CLAIR ST","city":"CHICAGO","state":"IL","postal_code":"606112927","country_code":"US","street_2":"STE 2300","phone":"3129266000","fax":"3129266600"}],"license":{"state":"IL","number":"036074842"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"036074842","state":"IL","issuer":null}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20260130003311","type_code":"33-11","type_desc":"ORDER AND REFERRING ONLY - INTERNAL MEDICINE","state":"IL","pac_id":"9638105067"}]},"enumeration_date":"2005-08-30","last_updated":"2008-07-08","_meta":{"source":"NPPES","snapshot_date":"2008-07-08","doc_url":"https://findmynpi.com/api"}}