Labor Union Clients, Members & Providers

Group Dental Service of Maryland, Inc.

111 Rockville Pike, Suite 700

Rockville, MD 20850

Phone: 800-242-0450

Email:customercare@gdsmd.com

All Others Inquiries

Group Dental Service

111 Rockville Pike, Suite 700

Rockville, MD 20850

Phone: 866-433-6398

Email:AcctMgmt@gdsmd.com