855-373-8232: Coastal Administrative Services Customer Service

Quick answer

(855) 373-8232 reaches Coastal Administrative Services (customer service). It is answered by automated phone menu. From the greeting, press 1 for member; press 2 for provider: eligibility, prior authorizations or claim status.

Instead of waiting on the phone, verify benefits instantly with Substrate.

Line at a glance

Health planCoastal Administrative Services
DepartmentCustomer Service
PurposeCoastal Administrative Services customer service line for members and for providers calling about eligibility, prior authorizations or claim status.
Answered byAutomated phone menu
How to respondKeypad
Supported languagesEnglish
HoursNot stated in the greeting
Have readyNothing requested in the greeting

Shortcuts and conditional instructions

Questions about (855) 373-8232

How do providers check eligibility or claim status?

Press 2 for eligibility, prior authorizations or claim status.

Is there an email option?

During high call volume the recording asks callers to email customerservice@casbenefits.com.

Disclaimer

The information provided on this page is for general informational purposes only and does not constitute billing, coding, or reimbursement advice. Nothing on this page should be relied upon as a substitute for clinician assessment, professional billing guidance, or as a definitive statement of any payor's billing requirements or policies.

Payor agreements, fee schedules, and billing policies vary and are subject to change. Before submitting any claims related to maternity care services, including claims affected by the 2027 CPT code revisions, please consult the applicable payor agreements, coverage policies, and billing guidelines to confirm current requirements for their specific payor contracts.

Substrate makes no representation or warranty regarding the accuracy, completeness, or timeliness of the payor-specific information presented here. Providers are solely responsible for ensuring that all claims are submitted in accordance with applicable payor requirements, and Substrate assumes no liability for claim denials, underpayments, or other adverse outcomes arising from reliance on this information.