{"npi":"1043748874","type":"NPI-1","status":"active","name":{"display":"Joanne Grace Greising MD","other":[{"code":"5","type":"Also known as","value":"SANTOS, JOANNE GRACE CASTILLO"}],"first":"JOANNE GRACE","last":"GREISING","middle":"SANTOS","credential":"MD"},"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":"OH","license":"35.139850"}]},"addresses":[{"purpose":"LOCATION","street_1":"1001 COVINGTON ST","city":"YOUNGSTOWN","state":"OH","postal_code":"445101617","country_code":"US","phone":"3304802616","fax":"3304807979"},{"purpose":"MAILING","street_1":"5814 YORKTOWN LN","city":"YOUNGSTOWN","state":"OH","postal_code":"445152209","country_code":"US","phone":"8323664953"}],"license":{"state":"OH","number":"35.139850"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20251007000586","type_code":"33-11","type_desc":"ORDER AND REFERRING ONLY - INTERNAL MEDICINE","state":"MI","pac_id":"8224305727"}]},"enumeration_date":"2017-05-24","last_updated":"2020-06-19","_meta":{"source":"NPPES","snapshot_date":"2020-06-19","doc_url":"https://findmynpi.com/api"}}