{"npi":"1245308022","type":"NPI-1","status":"active","name":{"display":"Catherine Ahn MD","other":[],"first":"CATHERINE","last":"AHN","credential":"MD"},"specialty":{"primary_taxonomy":"207L00000X","primary_taxonomy_description":"Anesthesiology","slug":"anesthesiology","schema_org_specialty":"Anesthesia","all":[{"code":"207L00000X","description":"Anesthesiology","primary":true,"state":"IL","license":"036113618"}]},"addresses":[{"purpose":"LOCATION","street_1":"800 W CENTRAL RD","city":"ARLINGTON HEIGHTS","state":"IL","postal_code":"600052349","country_code":"US","phone":"8476181000"},{"purpose":"MAILING","street_1":"925 SHERWOOD DR","city":"LAKE BLUFF","state":"IL","postal_code":"600442203","country_code":"US"}],"license":{"state":"IL","number":"036113618"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20050808000331","type_code":"14-05","type_desc":"PRACTITIONER - ANESTHESIOLOGY","state":"IL","pac_id":"8628007937"}]},"enumeration_date":"2006-12-01","last_updated":"2026-03-03","_meta":{"source":"NPPES","snapshot_date":"2026-03-03","doc_url":"https://findmynpi.com/api"}}