{"npi":"1770876344","type":"NPI-1","status":"active","name":{"display":"John Gleysteen MD","other":[],"first":"JOHN","last":"GLEYSTEEN","middle":"PATRICK","credential":"MD"},"specialty":{"primary_taxonomy":"207Y00000X","primary_taxonomy_description":"Otolaryngology Physician","slug":"otolaryngology-physician","schema_org_specialty":null,"all":[{"code":"207Y00000X","description":"Otolaryngology Physician","primary":true,"state":"TN","license":"56203"}]},"addresses":[{"purpose":"LOCATION","street_1":"1325 EASTMORELAND AVE STE 260","city":"MEMPHIS","state":"TN","postal_code":"381047549","country_code":"US","phone":"9012726051","fax":"9012666443"},{"purpose":"MAILING","street_1":"1211 UNION AVE STE 330","city":"MEMPHIS","state":"TN","postal_code":"381046655","country_code":"US"}],"license":{"state":"TN","number":"56203"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"03936334","state":"MS","issuer":null},{"type_code":"05","label":"Medicaid","value":"Q031018","state":"TN","issuer":null},{"type_code":"05","label":"Medicaid","value":"223244001","state":"AR","issuer":null},{"type_code":"01","label":"Other","value":"6120219","state":"TN","issuer":"BCBS"}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20171114000366","type_code":"14-04","type_desc":"PRACTITIONER - OTOLARYNGOLOGY","state":"TN","pac_id":"8527203389"}]},"enumeration_date":"2011-05-16","last_updated":"2026-03-26","_meta":{"source":"NPPES","snapshot_date":"2026-03-26","doc_url":"https://findmynpi.com/api"}}