550 Benefits Office


The Sprinkler Fitters Local 550 Benefits Office was created to manage the benefits for our members and their families.  These benefits have long included a health plan, a Defined Contribution and Defined Benefit Pension Plan.  The following is the contact information for our providers.

National Automatic Sprinkler Industry
Welfare Fund
8000 Corporate Drive
Landover, MD 20785
(301)577-1700

Toll Free Number(s) for:
  • Benefits Verification or Assistance:
    • 1-800-638-2603
  • To Certify Hospital Admissions:
    • 1-800-457-1403
  • Medical PPO Provider Finder
    • 1-800-810-BLUE
  • Medco Customer Service
    • 1-866-544-6775
  • Vision Service Plan Service Inquiries:
    • 1-800-877-7195
  • National Ear Care Plan:
    • 1-888-884-6327

Benefits Office News