Carelon Maryland PaySpan to Zelis: Payment Change on October 19, 2026

Carelon Maryland is moving provider payment management from PaySpan to Zelis, and the latest posted date is October 19, 2026. If you bill Maryland Medicaid’s specialty behavioral health system, the way you receive payments and remittances may change. This post on the Carelon Maryland PaySpan Zelis change uses the six-part payer update format. It is Maryland only. Sources were checked on October 9, 2026.

What changed in the Carelon Maryland PaySpan Zelis move

Carelon Behavioral Health, the Maryland Medicaid behavioral health administrative services organization (ASO) that handles specialty behavioral health claims, is changing the platform that handles provider payments. Carelon’s provider alerts page lists four notices in 2026:

• April 9: “Provider Payment Management Moving from PaySpan to Zelis.”
• June 4: “PaySpan to Zelis Transition Delayed.”
• June 10: “PaySpan Filing Delay Affecting PSV Access.”
• September 11: “Updated PaySpan-to-Zelis Transition Date: October 19, 2026.”

The page banner still points to an August date from the June notice. The September 11 notice is newer, so plan around October 19. Open that alert on Carelon’s page for the exact enrollment steps. Its text is the authority on what you must do.

PaySpan and Zelis are payment and remittance platforms. Zelis describes its provider payment product as supporting standard ACH, premium ACH, virtual card, prepaid cards and wallet payments on its payments solutions page.

When it takes effect

Carelon’s most recent notice names October 19, 2026. Dates have moved once already, so check the alerts page the week before. Do not wait for the transition week to learn your login.

Who it affects

Any provider paid by Carelon for Maryland Medicaid behavioral health services. That includes group practices, solo therapists and psychiatrists who bill specialty claims. If you bill only through a HealthChoice managed care organization (MCO), this notice does not control your MCO payments. Our Medicaid HCPCS guide explains why the same code can follow different rules by state. Payer phone numbers are in our Maryland and DC insurance contact guide.

Practical impact

How does a payment platform change hit a small practice? In four places.

1. Deposits. EFT (electronic funds transfer) bank details may need to be confirmed or re-entered. A wrong account number means a delayed payment, not a failed claim.
2. Remittances. An ERA (electronic remittance advice, or 835 file) tells you what was paid and why. Zelis says 835 files can be delivered to a clearinghouse or by SFTP, and that enrolling through its network includes ACH or virtual credit card options. If you only want basic EFT and ERA, Zelis tells providers to contact the health plan directly. Ask Carelon which path applies to you.
3. Posting. If your billing system auto-posts 835 files, a new sender may need a new connection. Test one remittance before you trust the batch.
4. Cash flow. A short gap in deposits can look like a denial problem. Our private practice management hub covers cash flow basics.

The reimbursement terms glossary defines remittance, EFT and overpayment in plain language.

What to do next for Carelon Maryland PaySpan Zelis

This list helps your practice prepare for the Carelon Maryland PaySpan Zelis switch.

Use this short list this week:

1. Read the September 11 alert on Carelon’s alerts page and note every deadline in it.
2. Confirm who in your practice owns the Carelon and PaySpan logins. Write the names down.
3. Gather your bank letter or voided check, tax ID and NPI. Keep them ready, and send nothing by unsecured email.
4. Tell your clearinghouse or billing software vendor that an 835 sender change is coming. Our electronic claims submission page shows where remittances fit in the claim flow.
5. After the first Zelis payment, match each deposit to its 835. Report anything missing right away.
6. For the first two payment cycles after the switch, keep a simple log: deposit date, amount, and the 835 it matches.
7. Watch Carelon’s alerts page for further date changes.

Lost payments are not denials. If a claim stays unpaid while the new platform settles, treat it like any other aging claim. See claims processing terms for status codes and our denied claims follow-up page for next steps.

Questions to verify with Carelon

Ask these before October 19:

• Which enrollment path applies to my practice, and what is the deadline?
• Will my existing PaySpan EFT enrollment carry over, or must I re-enroll?
• Will the 835 file come from a new sender ID, and does my clearinghouse need to be notified?
• Is a virtual card offered, and can I opt out?
• Will remittance advice for claims paid before October 19 stay available in PaySpan, and for how long?
• Who do I call if a payment is missing after the switch?

If Carelon is slow to pay, Maryland’s prompt-pay law also reaches the Medicaid mental health ASO. See the Maryland Insurance Administration’s prompt-pay page, which says clean claims must be paid within 30 days.

Carelon Maryland PaySpan Zelis FAQ

Short answers on the Carelon Maryland PaySpan Zelis change follow.

More billing basics are in our mental health billing FAQ.

Is this the same as the 2025 ASO change from Optum to Carelon?

No. That change moved claims processing to Carelon. This one changes the payment platform Carelon uses.

Do I have to enroll with Zelis myself?

Possibly. Zelis says providers who want only basic EFT and ERA should contact the health plan rather than enroll through its network. Ask Carelon which route applies.

Will my claims be paid late?

Carelon’s alerts do not say so in the titles reviewed. Treat the date as a deadline for your setup, and watch for notices. For more on how Zelis enrollment works in general, see the Zelis provider enrollment page.

Where MCM South Medical Billing Service Works

MCM South Medical Billing Service, LLC works exclusively with mental and behavioral health practices, including psychotherapists and psychiatrists, and bills out-of-network claims. We offer our services to practices in Maryland, and we also work with practices in Georgia, Massachusetts, Connecticut, Texas, Florida, New York, Colorado, Tennessee, North Carolina and Illinois. If you want to talk through your own billing, you can request a free consultation.