{"npi":"1649634221","type":"NPI-1","status":"active","name":{"display":"Dr. Ryan Nelson M.D./PH.D.","other":[],"first":"RYAN","last":"NELSON","middle":"WILLIAM","credential":"M.D./PH.D."},"specialty":{"primary_taxonomy":"2080P0201X","primary_taxonomy_description":"Pediatric Allergy/Immunology Physician","slug":"pediatric-allergy-immunology-physician","schema_org_specialty":null,"all":[{"code":"2080P0201X","description":"Pediatric Allergy/Immunology Physician","primary":true,"state":"MA","license":"279471"}]},"addresses":[{"purpose":"LOCATION","street_1":"300 LONGWOOD AVE BOSTON CHILDREN'S HOSPITAL","city":"BOSTON","state":"MA","postal_code":"02115","country_code":"US","street_2":"HUNNEWELL BUILDING, PAVILION 129, HOUSESTAFF LOUNGE","phone":"6129680708"},{"purpose":"MAILING","street_1":"300 LONGWOOD AVE BOSTON CHILDREN'S HOSPITAL","city":"BOSTON","state":"MA","postal_code":"02115","country_code":"US","street_2":"HUNNEWELL BUILDING, PAVILION 129, HOUSESTAFF LOUNGE","phone":"6129680708"}],"license":{"state":"MA","number":"279471"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20230928002073","type_code":"14-03","type_desc":"PRACTITIONER - ALLERGY/IMMUNOLOGY","state":"MN","pac_id":"9830577410"}]},"enumeration_date":"2016-04-08","last_updated":"2022-06-01","_meta":{"source":"NPPES","snapshot_date":"2022-06-01","doc_url":"https://findmynpi.com/api"}}