BEGIN:VCARD VERSION:3.0 FN:John Armstrong\, DO N:Armstrong;John;;;DO TITLE:Internal Medicine Physician TEL;TYPE=WORK,VOICE:+15733649000 URL:https://www.gale.care/providers/mo/rolla/john-armstrong-do-1427679232 NOTE:NPI 1427679232. From the NPPES registry (CMS)\, file of 2026-06-08. No t affiliated with Gale. X-NPI:1427679232 END:VCARD