Delta Dental of California Customer Service for Enrollees and Providers

Enrollee Services

Online Inquiries

Phone and Mail Inquiries

Delta Dental's Customer Service Department

Call toll-free:
800-765-6003
Monday through Friday between 5:00 a.m. and 5:00 p.m., Pacific time.
Or write to:
Delta Dental Customer Service
P.O. Box 997330
Sacramento, CA95899-7330

DeltaCare USA Customer Service

Call toll-free:
800-422-4234
Monday through Friday between 5:00 a.m. and 6:00 p.m., Pacific time.
Or write to:
DeltaCare USA Customer Service
P.O. Box 1803
Alpharetta, GA 30023

Send written grievances to:

  • Quality Management Department
  • P.O. Box 6050
    Artesia, CA 90702
  • Fax: 562-924-6914

The Quality Management department will send you a written determination via U.S. postal service within 30 days of receipt of your Enrollee Assistance Form or letter of complaint. Submissions involving severe pain and/or an imminent serious threat to your health will be reviewed immediately.


Provider Services

Online Inquiries

Phone and Mail Inquiries

Delta Dental's Customer Service Department

Call toll-free:
888-335-8227
Or write to:
Delta Dental Customer Service
P.O. Box 997330
Sacramento, CA 95899-7330

DeltaCare USA Customer Service

Call toll-free:
800-422-4234
Monday through Friday between 5:00 a.m. and 6:00 p.m., Pacific time.
Or write to:
DeltaCare USA Customer Service
P.O. Box 1803
Alpharetta, GA 30023