{"npi":"1811905367","type":"NPI-1","status":"active","name":{"display":"William Janssen MD","other":[],"first":"WILLIAM","last":"JANSSEN","middle":"J","credential":"MD"},"specialty":{"primary_taxonomy":"207RP1001X","primary_taxonomy_description":"Pulmonary Disease Physician","slug":"pulmonary-disease-physician","schema_org_specialty":null,"all":[{"code":"207RC0200X","description":"Critical Care Medicine (Internal Medicine) Physician","primary":false,"state":"CO","license":"41254"},{"code":"207RP1001X","description":"Pulmonary Disease Physician","primary":true,"state":"CO","license":"41254"}]},"addresses":[{"purpose":"LOCATION","street_1":"1400 JACKSON ST","city":"DENVER","state":"CO","postal_code":"802062761","country_code":"US","phone":"3033884461","fax":"3032702206"},{"purpose":"MAILING","street_1":"1400 JACKSON ST","city":"DENVER","state":"CO","postal_code":"802062761","country_code":"US","phone":"3033884461","fax":"3033981211"}],"license":{"state":"CO","number":"41254"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"70623244","state":"CO","issuer":null}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20050913000966","type_code":"14-29","type_desc":"PRACTITIONER - PULMONARY DISEASE","state":"CO","pac_id":"6002849858"}]},"enumeration_date":"2006-08-03","last_updated":"2021-02-23","_meta":{"source":"NPPES","snapshot_date":"2021-02-23","doc_url":"https://findmynpi.com/api"}}