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Contact Us

Labor Union Clients, Members & Providers

Group Dental Service of Maryland, Inc.
15400 Calhoun Drive, Suite 300
Rockville, MD 20855

Phone: 800-242-0450

Email:accountservices@gdsmd.com

All Others Inquiries

Group Dental Service of Maryland, Inc.
15400 Calhoun Drive, Suite 300
Rockville, MD 20855

Phone: 240-283-3500

Email:accountservices@gdsmd.com