{"npi":"1851380810","type":"NPI-1","status":"active","name":{"display":"Dr. John Mackay M.D.","other":[],"first":"JOHN","last":"MACKAY","middle":"M.","credential":"M.D."},"specialty":{"primary_taxonomy":"207P00000X","primary_taxonomy_description":"Emergency Medicine","slug":"emergency-medicine","schema_org_specialty":"Emergency","all":[{"code":"207P00000X","description":"Emergency Medicine","primary":true,"state":"TX","license":"J4898"}]},"addresses":[{"purpose":"LOCATION","street_1":"4815 ALAMEDA AVE","city":"EL PASO","state":"TX","postal_code":"799052705","country_code":"US","phone":"9155217415","fax":"9155217920"},{"purpose":"MAILING","street_1":"5130 GATEWAY BLVD E # 51015","city":"EL PASO","state":"TX","postal_code":"799051608","country_code":"US","phone":"9152154480","fax":"9152155386"}],"license":{"state":"TX","number":"J4898"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"106012102","state":"TX","issuer":null},{"type_code":"01","label":"Other","value":"J4898","state":"TX","issuer":"STATE LICENSE"}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20090226000647","type_code":"14-93","type_desc":"PRACTITIONER - EMERGENCY MEDICINE","state":"TX","pac_id":"7911063938"}]},"enumeration_date":"2005-10-20","last_updated":"2023-11-08","_meta":{"source":"NPPES","snapshot_date":"2023-11-08","doc_url":"https://findmynpi.com/api"}}