BEGIN:VCARD VERSION:3.0 FN:David Buyer\, MD N:Buyer;David;;;MD TITLE:Internal Medicine Physician TEL;TYPE=WORK,VOICE:+13125983520 URL:https://www.gale.care/providers/il/chicago/david-buyer-md-1831164888 NOTE:NPI 1831164888. From the NPPES registry (CMS)\, file of 2026-06-08. No t affiliated with Gale. X-NPI:1831164888 END:VCARD