Medi-Cal Rx: Fax Number for Prior Authorization

Is fax still accepted at Medi-Cal Rx?

Medi-Cal Rx, California's centralized Medicaid pharmacy benefit program administered by Magellan/Gainwell, confirms a prior authorization fax of 1-800-869-4325. This number is corroborated across multiple DHCS-affiliated official sources, including a DHCS-hosted PDF and health-plan partner pages, though the medi-calrx.dhcs.ca.gov contact page itself was not independently re-verified in plain text during this research. CoverMyMeds electronic prior authorization is promoted alongside fax through an official flyer, not as a stated replacement.

Where to fax

• Pharmacy prior authorization (provider): fax 1-800-869-4325. Source: DHCS's own Medi-Cal Rx Prior Authorization document.

Fax number(s) verified 2026-09-17, corroborated rather than confirmed on a single canonical page, worth a follow-up direct check of medi-calrx.dhcs.ca.gov before the next verification cycle.

What replaced fax at Medi-Cal Rx?

Nothing has replaced fax. Medi-Cal Rx promotes CoverMyMeds ePA as a parallel channel through an official flyer, alongside its own provider portal, but continues to accept fax.

Which route should I use?

1. Confirm the patient's coverage is specifically Medi-Cal Rx (the pharmacy benefit), not the broader Medi-Cal medical program, before using this number.
2. Use the fax number above for pharmacy prior authorization requests.
3. Consider CoverMyMeds ePA as a faster parallel option if your practice already uses it.

Several other pharmacy prior authorization intermediaries follow a similar pattern. Our directory also covers Sav-Rx's fax number, is fax still accepted at eviCore, the CVS Caremark fax page, and OptumRx's prior authorization fax, each with its own fax status and routing notes.