CMS Help Desks

EHR Information Center Help Desk

  • (888) 734-6433 / TTY: (888) 734-6562
  • ​Hours of Operation: Monday-Friday 8:30 a.m. to 4:30 p.m. in all time zones (except on Federal holidays)


NPPES Help Desk


PECOS Help Desk


Identification & Access Management System (I&A) Help Desk

  • PECOS External User Services (EUS) Help Desk Phone: 1-866-484-8049
  • TTY 1-866-523-4759
  • E-mail: EUSSupport@cgi.com