{"npi":"1225041544","type":"NPI-1","status":"active","name":{"display":"Duncan Johnstone MD, PHD","other":[],"first":"DUNCAN","last":"JOHNSTONE","middle":"B","credential":"MD, PHD"},"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":"KS","license":"04-47576"},{"code":"207RN0300X","description":"Nephrology Physician","primary":false,"state":"PA","license":"MD438144"}]},"addresses":[{"purpose":"LOCATION","street_1":"3901 RAINBOW BLVD","city":"KANSAS CITY","state":"KS","postal_code":"661605103","country_code":"US","phone":"9135886074","fax":"9135883867"},{"purpose":"MAILING","street_1":"3901 RAINBOW BLVD","city":"KANSAS CITY","state":"KS","postal_code":"661608500","country_code":"US","phone":"9135886074","fax":"9135883867"}],"license":{"state":"KS","number":"04-47576"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20230525000281","type_code":"14-39","type_desc":"PRACTITIONER - NEPHROLOGY","state":"KS","pac_id":"4789685827"},{"enrlmt_id":"I20250407001964","type_code":"14-39","type_desc":"PRACTITIONER - NEPHROLOGY","state":"MO","pac_id":"4789685827"}]},"enumeration_date":"2006-08-15","last_updated":"2026-04-03","_meta":{"source":"NPPES","snapshot_date":"2026-04-03","doc_url":"https://findmynpi.com/api"}}