By phone
Delta Dental DC 37 Dedicated Customer Service
Toll-free: 888-523-DC37(3237) (TTY/TDD 711)
Monday through Friday between 8 am and 8 pm, Eastern time
By mail
- Delta Dental
Corporate Headquarters
One Delta Drive
Mechanicsburg, PA 17055-6999
Attention: DC 37 Dedicated Customer Service Unit
Grievances
To file a patient grievance, use the secure form for your plan:
Send Delta Dental grievances to:
- Delta Dental of California
P.O. Box 997330
Sacramento, CA 95899-7330
You can also report a grievance to Customer Service by phone at 888-523-3237 (toll-free) or by sending a fax to 916-631-6374.