BEGIN:VCARD VERSION:3.0 FN:Mark Avigan\, MD N:Avigan;Mark;;;MD TITLE:Gastroenterology Physician TEL;TYPE=WORK,VOICE:+13017960065 URL:https://www.gale.care/providers/md/silver-spring/mark-avigan-md-1619178 092 NOTE:NPI 1619178092. From the NPPES registry (CMS)\, file of 2026-06-08. No t affiliated with Gale. X-NPI:1619178092 END:VCARD