The Texas Pharmacy Prior Authorization Call Center fax number (1-866-617-8864) is currently experiencing technical issues. It cannot receive or send faxes related to Medicaid fee-for-service pharmacy prior authorization requests.
A new toll-free fax number is now available. Providers should fax prior authorization requests to 1-844-419-6543 until further notice.
The Texas Prior Authorization Call Center still receives prior authorization requests by phone or online. Call 1-877-PA-TEXAS (1-877-728-3927), or register (PDF) and refer to the “PA Request” option at PAXpress (paxpress.txpa.hidinc.com).