{"npi":"1326046202","type":"NPI-1","status":"active","name":{"display":"Dr. Mary Pieprzak M.D.","other":[],"first":"MARY","last":"PIEPRZAK","middle":"A","credential":"M.D."},"specialty":{"primary_taxonomy":"207RN0300X","primary_taxonomy_description":"Nephrology Physician","slug":"nephrology-physician","schema_org_specialty":null,"all":[{"code":"207RN0300X","description":"Nephrology Physician","primary":true,"state":"MD","license":"D50616"}]},"addresses":[{"purpose":"LOCATION","street_1":"5999 HARPERS FARM RD STE W250","city":"COLUMBIA","state":"MD","postal_code":"210443017","country_code":"US","phone":"4107728822","fax":"4107729274"},{"purpose":"MAILING","street_1":"1589 SULPHUR SPRING RD STE 109","city":"BALTIMORE","state":"MD","postal_code":"212272542","country_code":"US","phone":"4105365400","fax":"4107372168"}],"license":{"state":"MD","number":"D50616"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20100518000047","type_code":"14-39","type_desc":"PRACTITIONER - NEPHROLOGY","state":"MD","pac_id":"1254483688"},{"enrlmt_id":"I20200609000087","type_code":"14-39","type_desc":"PRACTITIONER - NEPHROLOGY","state":"DC","pac_id":"1254483688"}]},"enumeration_date":"2005-07-13","last_updated":"2025-01-22","_meta":{"source":"NPPES","snapshot_date":"2025-01-22","doc_url":"https://findmynpi.com/api"}}