BEGIN:VCARD VERSION:3.0 FN:William Walker\, MD N:Walker;William;;;MD TITLE:Aerospace Medicine Physician TEL;TYPE=WORK,VOICE:+15209757083 URL:https://www.gale.care/providers/az/vail/william-walker-md-1457321192 NOTE:NPI 1457321192. From the NPPES registry (CMS)\, file of 2026-06-08. No t affiliated with Gale. X-NPI:1457321192 END:VCARD