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Delaware

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Highmark Blue Cross Blue Shield Delaware

General Inquiries

1-302-421-3000
Highmark Blue Cross Blue Shield Delaware
FEP Customer Service/ Care Management 
P.O. Box 1991
Wilmington, DE 19801-1368

Claims

P.O. Box 8830
Wilmington, DE 19899

Customer Service

1-800-721-8005

Precertification

1-800-572-2872

Mental Health/Substance Use Disorder Precertification

1-800-258-9808

Care Management Programs

Asthma
Baby Benefits and Accordant Health Services
Chronic Obstructive Pulmonary Disease
Coronary Artery Disease
Congestive Heart Failure
Diabetes

If you are deaf, hard of hearing, or have a speech disability, dial 711 for TTY relay services. For other language assistance or translation services, please call the customer service number for your local Blue Cross and Blue Shield company.