myMatrixx: how it works for injured workers

Quick facts

• Parent company: Express Scripts (a Cigna company)
• Headquarters: Tampa, Florida
• Founded / current form: 2001; acquired by Express Scripts 2017
• Pharmacy network: ~60,000 retail pharmacies + Express Scripts mail + Accredo specialty

What makes myMatrixx distinctive

Clinical pharmacy + chronic-pain management programs; deep integration with Express Scripts retail network.

That matters because PBM choice shapes which drugs your carrier will pay for without friction, which pharmacies you can walk into, and how aggressively the carrier will push back on long-term prescriptions. The rules don’t change — the state formulary and fee schedule still apply — but the day-to-day experience does.

At the pharmacy counter (with myMatrixx)

1. Tell the pharmacist it’s a workers’ comp prescription before they run your normal insurance. The pharmacy will route the bill to myMatrixx instead of your private health insurance.
2. Hand over your claim number and adjuster contact. myMatrixx bills the carrier directly — you should not be asked to pay at the counter. If the pharmacist asks for a copay or full price, something is wrong with the routing.
3. If prior authorization is required, the script goes on hold. myMatrixx (like every WC PBM) flags certain drugs — non-formulary entries, opioids above a morphine-equivalent threshold, brand-name when generic exists — for clinical review before release.
4. Call the prescriber and your adjuster to confirm the PA request was submitted. The prescriber is responsible for writing the clinical justification. The adjuster should be able to tell you whether myMatrixx has received it and where it is in the review queue.

How myMatrixx fits the state formulary

myMatrixx doesn’t set drug coverage rules — the state does. The PBM enforces the state’s formulary (closed or open) and the state’s pharmacy fee schedule. Which state you’re in matters more than which PBM your carrier picked. Look up the rules in your state:

• California (closed formulary)
• Florida (open formulary)
• New York (closed formulary)
• Ohio (closed formulary)
• Pennsylvania (open formulary)
• Texas (closed formulary)

If myMatrixx denies your prescription

A myMatrixx denial is the start of the appeal process, not the end. Most state formulary denials are overturned when the prescriber submits clear clinical justification — or when the worker appeals through the state’s utilization-review dispute process.

1. Get the denial reason in writing. The reason determines the appeal path.
2. Have the prescriber submit a clinical justification. Failed trials of alternatives, contraindications to formulary drugs, specific functional findings.
3. Use the state UR dispute process. California IMR overturns ~33% of denials; other states have analogous mechanisms.
4. Talk to a workers’ comp attorney if denials are part of a broader treatment-denial pattern. Find one in your state.

Frequently asked questions

How do I know if my workers' comp carrier uses myMatrixx?

Check your claim paperwork — the pharmacy benefit manager is usually named on the prescription card the carrier mails out, or on the first denial letter if a script gets put on hold. If you can't find it, ask your claims adjuster directly.

Can I use my regular pharmacy with myMatrixx?

myMatrixx contracts with most national chains — CVS, Walgreens, Walmart, Rite Aid, Kroger — so the answer is usually yes. Independent pharmacies are also commonly in network thanks to retail-pharmacy aggregator deals. Tell the front desk it's a workers' comp prescription so they bill myMatrixx and not your private insurance.

What happens if myMatrixx requires prior authorization?

Your script goes on hold at the counter. The prescribing doctor has to submit a Request for Authorization (or PBM-specific equivalent) explaining medical necessity — failed alternatives, contraindications, functional findings. The PBM has a statutory window to respond. If approved, the pharmacy releases the drug. If denied, the denial goes through your state's utilization-review dispute process.

Does myMatrixx run mail-order pharmacy?

Yes. ~60,000 retail pharmacies + Express Scripts mail + Accredo specialty Mail-order is usually cheaper for the carrier (so they push for it) and easier for you on chronic prescriptions — but you lose the local-pharmacist relationship that matters when something goes wrong. Your adjuster can opt you in.

What do I do if myMatrixx denies my prescription?

Get the denial reason in writing, have your prescriber submit a clinical justification, and use the state utilization-review dispute process to appeal. California has Independent Medical Review (IMR), which overturns roughly a third of denials. Other states have similar mechanisms. If denials are part of a broader pattern, talk to a workers' comp attorney.

Other workers’ comp PBMs

Your carrier picks the PBM, not you. If you’re curious how myMatrixx compares to the other major WC PBMs:

• Optum Workers' Comp (formerly Helios) — Largest WC-only PBM by claim volume.
• Mitchell ScriptAdvisor — Best for carriers already on the Mitchell stack.
• Healthesystems — Heavy use by self-insured employer programs.
• Carisk Partners — Focused on the highest-complexity WC claims rather than mass-market volume.

Related resources

• Workers’ comp pharmacy hub — full guide to how WC pharmacy works.
• How much workers’ comp pays — medical benefits cover prescriptions.
• Workers’ comp claim denied: what to do — broader appeal playbook.
• Medicare Set-Aside guide — relevant when settling with future-Rx exposure.
• Workers’ comp FAQ hub — 24 plain-language Q&A.