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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

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