Reminder: Prescriber Instructions for Pharmacy Prior Authorization Submission for Fee-for-Service Texas Medicaid

The Texas Vendor Drug Program reminds prescribing providers of the following pharmacy prior authorization requirements and processes.
Third-Party Submissions

VDP only accepts prior authorizations from pharmacies. Prior authorizations must be signed by the actual prescriber.
VDP does not accept prior authorizations from third-party providers because of prohibitions on sharing and receiving protected health information. Prescribing providers can call the Texas Medicaid Pharmacy Prior Authorization Call Center with a verbal prior authorization request to 877-PA-TEXAS (877-728-3927) or fax requests to 866-469-8590.

Prior Authorizations in Medicare Part D
Medicaid pharmacy prior authorizations do not apply to people enrolled in Medicare Part D and VDP will deny the requests.

Prior Authorizations For Medicaid Managed Care Members
VDP does not process pharmacy prior authorization requests for members enrolled in managed care organizations (MCOs). VDP will deny prior authorizations for members enrolled in MCOs and will provide a faxed denial letter with the MCO contact information to the prescribing provider. VDP also provides contact information for MCOs on the VDP website via the MCO Search.

For questions about pharmacy prior authorizations for fee-for-service Texas Medicaid, call the Texas Medicaid Pharmacy and Technical Call Center at 800-435-4165, Monday to Friday, 7 a.m. to 7 p.m., Central Time.

Published on
June 14, 2025