BEGIN:VCARD
VERSION:3.0
FN:William Sieff\, MD
N:Sieff;William;;;MD
TITLE:Student in an Organized Health Care Education/Training Program
TEL;TYPE=WORK,VOICE:+12124236262
URL:https://www.gale.care/providers/ny/new-york/william-sieff-md-1780472407
NOTE:NPI 1780472407. From the NPPES registry (CMS)\, file of 2026-06-08. No
 t affiliated with Gale.
X-NPI:1780472407
END:VCARD