{"npi":"1346289683","type":"NPI-1","status":"active","name":{"display":"Dr. K. Erik Kostelnik M.D.","other":[],"first":"K. ERIK","last":"KOSTELNIK","credential":"M.D."},"specialty":{"primary_taxonomy":"207N00000X","primary_taxonomy_description":"Dermatology","slug":"dermatology","schema_org_specialty":"Dermatologic","all":[{"code":"207N00000X","description":"Dermatology","primary":true,"state":"ME","license":"014713"}]},"addresses":[{"purpose":"LOCATION","street_1":"50 SEWALL ST","city":"PORTLAND","state":"ME","postal_code":"041022624","country_code":"US","phone":"2077753526","fax":"2077755658"},{"purpose":"MAILING","street_1":"50 SEWALL ST","city":"PORTLAND","state":"ME","postal_code":"041022624","country_code":"US","phone":"2077753526","fax":"2077755658"}],"license":{"state":"ME","number":"014713"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"431499999","state":"ME","issuer":null}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20050627000899","type_code":"14-07","type_desc":"PRACTITIONER - DERMATOLOGY","state":"ME","pac_id":"9537104872"}]},"enumeration_date":"2006-06-05","last_updated":"2008-10-16","_meta":{"source":"NPPES","snapshot_date":"2008-10-16","doc_url":"https://findmynpi.com/api"}}