Important Contact Information / Hours of Business
Office hours at Boilermakers National Funds (BNF) are 8 a.m. through 4 p.m. CST,
Monday through Friday.
Participants and Employers should call BNF at 866-342-6555 for questions about:
•Annuity•Pension•Employer Contributions
Contact information for BNF Health and Welfare questions depends on the type of information you are seeking. 
Below is a list of Health and Welfare contact numbers by inquiry type for your reference.
EligibilityCall the BNF Eligibility line at 855-249-2298 for the following:
•Medical eligibility•Dental eligibility•Pharmacy eligibility•Long term disability•Short term disability•Life insurance•COBRA and Retiree enrollment•Self pay premiumYou may also mail eligibility correspondence such as COBRA and self pay election forms to:
P.O. Box 219118Kansas City, MO 64121-9118 Medical ServicesCIGNACall CIGNA at 800-235-7748 or visit for the following:
•Medical benefit information•Pre-authorizations•Medical claim status•Upcoming medical service questions•Vision benefits•24-hour nurse line•Transplants•Identification card requests•Provider network status
CIGNA Behavioral HealthCall CIGNA Behavioral Health at 866-912-1688 for the following:
•Employee assistance program•Mental health or substance abuse services•Mental health or substance abuse services pre-authorization•Substance abuse help•24-hour nurse line•Upcoming services questions•Provider network status
Express ScriptsCall Express Scripts at 800-655-0459 or visit for the following:
•Pharmacy benefit questions•Mail order prescription status•Pre-authorizations•Pharmacy directory•Report fraud or abuse•Questions about brand or generic drugs
Delta DentalCall Delta Dental at 800-234-3375 or visit for the following:
•Dental claim status•Dental benefit questions•Pre-authorizations for dental services•Upcoming dental services questions•Provider network status
You can refer to, for 24/7 access to Plan documents, notices and vendor links.