State playbook
Insurance credentialing in Maryland.
Maryland's behavioral health carve out changed hands in 2025, its commercial credentialing clock is real law, and its associate billing rule is the strictest in the region. Three facts, three different mistakes waiting to happen.
Playbook verified July 2026 against Maryland's own statutes, agencies, and program manuals
The page’s own facts, dated below.
The fast facts
How this state actually works
Medicaid program
Enrolled through ePREP, before any service
Providers may not render until enrolled, and are at financial risk for services delivered before the number is active.
Behavioral health structure
Carved out to one statewide administrator
Specialty behavioral health is carved out of the managed care plans and administered fee for service by Carelon, which replaced the previous administrator at the start of 2025.
The plan roster
Nine physical health plans
Including Aetna Better Health, CareFirst Community Health Plan, Priority Partners, UnitedHealthcare Community Plan, and Wellpoint. Behavioral enrollment routes to Carelon, not to them.
Commercial credentialing law
30 day notice, 120 day decision
Maryland's insurance code binds commercial carriers to written notice within 30 days of a completed application and a decision within 120 days of that notice. It does not reach the Medicaid plans or the behavioral administrator.
The strict rule
Non independent clinicians cannot bill in private practice
Graduate licensed clinicians cannot enroll individually or be paid in individual or group practice, and supervisors cannot bill for them. Licensed facilities are the only door.
The prescriber gates
Database registration, then state license, then DEA
Maryland sequences its prescription monitoring registration before the state controlled substances license, which precedes the DEA.
Maryland runs one of the cleanest structural splits in the country, and it rewards knowing which door is which. Physical health for most Medicaid members runs through nine managed care plans; specialty behavioral health is carved out of those plans entirely and administered statewide, fee for service, by a single organization. Since the start of 2025 that organization is Carelon Behavioral Health, which replaced the previous administrator, so behavioral providers enroll with the state through ePREP and then register with Carelon, and teams still routing paperwork to the old administrator are mailing a company that no longer holds the contract.
The state enrollment rule is absolute in Maryland's own words: providers may not render services until enrolled, and are at financial risk for anything delivered before the number is active. On the commercial side, Maryland is one of the few states with a credentialing clock in statute: carriers must send written notice within 30 days of a completed application and decide within 120 days of that notice. The scope boundary matters as much as the clock: the law binds commercial carriers, and it does not reach the Medicaid plans or the behavioral administrator, so invoking it in the wrong arena wastes credibility that works in the right one.
The rule that shapes behavioral staffing plans is the strict one: Maryland bars clinicians who are not independently licensed, its graduate license tiers, from enrolling individually or being paid in individual or group practice, and bars supervisors from billing for their work. The only door for pre independent clinicians is a licensed facility or program. Groups arriving from states with supervisor billing or associate enrollment discover this at rejection time unless someone tells them first, and the naming convention makes it worse: in Maryland the intermediate social work license sits on the non independent list, with independence arriving only at the certified tier. The staffing model here has to be built around facilities or full licensure, because the state offers nothing in between.
Where it goes wrong
What stalls Maryland enrollments
Behavioral paperwork aimed at the wrong administrator
The carve out changed hands at the start of 2025, and the transition year ran a real claims backlog. Enrollment, authorizations, and claims for specialty behavioral health belong with Carelon now, and files still assuming the old administrator's processes stall on arrival.
Associates planned into private practice
Maryland rejects individual and group practice billing for non independent clinicians outright, and supervisor billing with it. A behavioral group's Maryland roster has to be built on independently licensed clinicians or a licensed facility structure, and we say so before the hiring plan is signed.
The statutory clock invoked in the wrong arena
The 30 and 120 day credentialing deadlines bind commercial carriers only. Citing them at the Medicaid plans or the behavioral administrator does nothing; citing them at commercial carriers, with the completed application date documented, does. Knowing where the law reaches is half its value.
Our process against theirs
How we run this state
- 1
ePREP before anything renders.
State enrollment confirmed active before service delivery, because Maryland puts the financial risk of early rendering on the provider. - 2
Route behavioral to Carelon.
Specialty behavioral enrollment and registration filed with the current administrator, with the transition era backlog planned into the timeline. - 3
Contract the plan roster deliberately.
The nine physical health plans engaged for physical services, with behavioral routing kept separate by design. - 4
Staff to the strict rule.
Independently licensed clinicians for practice settings, facility structures where pre independent staff are part of the model, and no promises the state's rules cannot keep. - 5
Work the commercial clock.
Completed application dates documented and the 30 and 120 day deadlines enforced where the statute actually reaches.
Where these facts come from
Verified, with the date on record
Checked against Maryland's provider enrollment manual and ePREP documentation, the behavioral health administrator transition materials, the text of the state's credentialing statute, and the current administrator's provider manual.
Last verified July 2026. Next scheduled review December 2026. Reviewed by the Go Credentialing operations team. State playbooks review on a longer cycle because statutes change slower than payer policy. Rules change; our playbooks change with them.
Asked constantly
Straight answers
Who handles Maryland Medicaid behavioral health now?
Carelon Behavioral Health, which became the statewide administrator at the start of 2025, replacing the previous one. Behavioral providers enroll with the state through ePREP and then register with Carelon for authorizations and claims. Materials referencing the prior administrator are out of date in ways that cost real time.
Can associate or graduate licensed clinicians bill Maryland Medicaid?
Not in private or group practice: Maryland bars non independent clinicians from enrolling individually or being paid in those settings, and bars supervisors from billing for them. The only route is employment in a licensed facility or program, which makes the staffing model the decision that matters.
Does Maryland limit how long credentialing can take?
For commercial carriers, yes, by statute: written notice within 30 days of a completed application, then a decision within 120 days of that notice. The law does not reach the Medicaid plans or the behavioral administrator, so it is a lever in the commercial arena specifically, and it works best with the completed application date documented.
What order do Maryland prescriber registrations happen in?
Prescription monitoring registration first, then the state controlled dangerous substances registration, then the DEA for a Maryland address. Files built in the usual DEA first order stall on the sequencing, which is exactly the kind of small state rule worth knowing before the paperwork starts.
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