{"npi":"1356431001","type":"NPI-1","status":"active","name":{"display":"Louie Kostopoulos MD","other":[{"code":"5","type":"Also known as","value":"KOSTOPOULOS, LOUIS"}],"first":"LOUIE","last":"KOSTOPOULOS","credential":"MD"},"specialty":{"primary_taxonomy":"207RI0011X","primary_taxonomy_description":"Interventional Cardiology","slug":"interventional-cardiology","schema_org_specialty":"Cardiovascular","all":[{"code":"207RI0011X","description":"Interventional Cardiology","primary":true,"state":"WI","license":"45636"}]},"addresses":[{"purpose":"LOCATION","street_1":"2801 W KINNICKINNIC RIVER PKWY","city":"MILWAUKEE","state":"WI","postal_code":"532153669","country_code":"US","street_2":"STE 840","phone":"4146493530"},{"purpose":"MAILING","street_1":"PO BOX 735044","city":"CHICAGO","state":"IL","postal_code":"606735044","country_code":"US"}],"license":{"state":"WI","number":"45636"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"34434000","state":"WI","issuer":null}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20040115000695","type_code":"14-C3","type_desc":"PRACTITIONER - INTERVENTIONAL CARDIOLOGY","state":"WI","pac_id":"1557262383"}]},"enumeration_date":"2006-10-13","last_updated":"2023-08-09","_meta":{"source":"NPPES","snapshot_date":"2023-08-09","doc_url":"https://findmynpi.com/api"}}