{"npi":"1528298213","type":"NPI-1","status":"active","name":{"display":"Sean O'neill M.D.","other":[],"first":"SEAN","last":"O'NEILL","middle":"M","credential":"M.D."},"specialty":{"primary_taxonomy":"208M00000X","primary_taxonomy_description":"Hospitalist","slug":"hospitalist","schema_org_specialty":"Internal","all":[{"code":"208M00000X","description":"Hospitalist","primary":true,"state":"WI","license":"55223"}]},"addresses":[{"purpose":"LOCATION","street_1":"UW HOSPITAL AND CLINICS","city":"MADISON","state":"WI","postal_code":"537920001","country_code":"US","street_2":"600 HIGHLAND AVE","phone":"6082630572","fax":"6088907127"},{"purpose":"MAILING","street_1":"7027 MAYWOOD AVE","city":"MIDDLETON","state":"WI","postal_code":"535622726","country_code":"US","phone":"6083452253","fax":"6088907127"}],"license":{"state":"WI","number":"55223"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20120229000415","type_code":"14-C6","type_desc":"PRACTITIONER - HOSPITALIST","state":"WI","pac_id":"3971761479"}]},"enumeration_date":"2009-07-16","last_updated":"2023-09-07","_meta":{"source":"NPPES","snapshot_date":"2023-09-07","doc_url":"https://findmynpi.com/api"}}