{"npi":"1225022700","type":"NPI-1","status":"active","name":{"display":"Joseph Trojan M.D.","other":[],"first":"JOSEPH","last":"TROJAN","middle":"G.","credential":"M.D."},"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":"WI","license":"26061"}]},"addresses":[{"purpose":"LOCATION","street_1":"2500 W LAYTON AVE","city":"MILWAUKEE","state":"WI","postal_code":"532215420","country_code":"US","street_2":"SUITE 10","phone":"4142822006","fax":"4142818704"},{"purpose":"MAILING","street_1":"PO BOX 689711","city":"MILWAUKEE","state":"WI","postal_code":"532689711","country_code":"US","phone":"4144563100","fax":"4144563113"}],"license":{"state":"WI","number":"26061"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"30738300","state":"WI","issuer":null}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20080929000477","type_code":"14-11","type_desc":"PRACTITIONER - INTERNAL MEDICINE","state":"WI","pac_id":"7517870207"}]},"enumeration_date":"2005-09-09","last_updated":"2008-11-21","_meta":{"source":"NPPES","snapshot_date":"2008-11-21","doc_url":"https://findmynpi.com/api"}}