{"npi":"1649030404","type":"NPI-1","status":"active","name":{"display":"Dr. John Chojnowski MD/PHD","other":[],"first":"JOHN","last":"CHOJNOWSKI","middle":"EDMUND","credential":"MD/PHD"},"specialty":{"primary_taxonomy":"390200000X","primary_taxonomy_description":"Student in an Organized Health Care Education/Training Program","slug":"student-in-an-organized-health-care-education-training-program","schema_org_specialty":null,"all":[{"code":"390200000X","description":"Student in an Organized Health Care Education/Training Program","primary":true,"state":null,"license":null}]},"addresses":[{"purpose":"LOCATION","street_1":"3400 SPRUCE ST","city":"PHILADELPHIA","state":"PA","postal_code":"191044238","country_code":"US","phone":"2156622428"},{"purpose":"MAILING","street_1":"3400 SPRUCE ST","city":"PHILADELPHIA","state":"PA","postal_code":"191044238","country_code":"US","phone":"2156622428","fax":"2156151658"}],"license":null,"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20240618002256","type_code":"33-92","type_desc":"ORDER AND REFERRING ONLY - RADIATION ONCOLOGY","state":"PA","pac_id":"4880137934"}]},"enumeration_date":"2024-03-20","last_updated":"2024-04-02","_meta":{"source":"NPPES","snapshot_date":"2024-04-02","doc_url":"https://findmynpi.com/api"}}