Claims are sent to the Delta Dental company which provides your patient's insurance. They do not go to the local Delta Dental with which you've signed a participation agreement. You can confirm your patient's Delta Dental company by signing into your dentist dashboard on deltadental.com.
To find answers to frequently asked questions regarding Delta Dental, visit their site at https://www.deltadental.com/us/en/dentist/dentist-faq-.html.
You can also download a claim form. Once you've determined which Delta Dental to send the claim to, you can find their address on their website.
To find the correct payer ID to send the claims, view the Change Healthcare Dental Payer List.