{"npi":"1386613693","type":"NPI-1","status":"active","name":{"display":"William Tester MD","other":[],"first":"WILLIAM","last":"TESTER","middle":"J","credential":"MD"},"specialty":{"primary_taxonomy":"207RH0003X","primary_taxonomy_description":"Hematology & Oncology","slug":"hematology-oncology","schema_org_specialty":"Oncologic","all":[{"code":"207RX0202X","description":"Medical Oncology Physician","primary":false,"state":"PA","license":"MD021791E"},{"code":"207RH0003X","description":"Hematology & Oncology","primary":true,"state":"PA","license":"MD021791E"}]},"addresses":[{"purpose":"LOCATION","street_1":"925 CHESTNUT ST STE 320A","city":"PHILADELPHIA","state":"PA","postal_code":"19107","country_code":"US","phone":"2159558874","fax":"2159552340"},{"purpose":"MAILING","street_1":"925 CHESTNUT ST STE 320A","city":"PHILADELPHIA","state":"PA","postal_code":"191074216","country_code":"US","phone":"2159558874","fax":"2159552340"}],"license":{"state":"PA","number":"MD021791E"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"0009201560004","state":"PA","issuer":null}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20110510000624","type_code":"14-83","type_desc":"PRACTITIONER - HEMATOLOGY/ONCOLOGY","state":"PA","pac_id":"5496931396"}]},"enumeration_date":"2006-03-17","last_updated":"2018-11-09","_meta":{"source":"NPPES","snapshot_date":"2018-11-09","doc_url":"https://findmynpi.com/api"}}