The search question usually comes from patients — which insurer offers the best mental health benefits? But for a mental health practice, the relevant question is different: which payers are worth being in-network with, and what does "best" mean from the provider side of the relationship?
The answers don't always agree. A payer that offers patients excellent mental health benefits may reimburse providers at below-market rates, impose aggressive authorization requirements, or run a credentialing process that takes eight months. Understanding both sides of the relationship — what the payer offers clients, and what it costs the practice operationally — is what drives good network decisions.
What "best" means from the patient side
Patients evaluating mental health coverage typically care about three things: whether their provider is in-network, what their out-of-pocket cost looks like for behavioral health visits, and whether the plan has session limits or requires authorization for ongoing care.
Under the federal Mental Health Parity and Addiction Equity Act, commercial health plans must cover mental health and substance use benefits on terms no more restrictive than medical benefits — meaning copays, session limits, and prior authorization requirements can't be more burdensome for behavioral health than for equivalent medical care. In practice, enforcement of parity varies, and some plans impose authorization requirements for mental health that they don't impose for equivalent medical services.
From the patient's perspective, plans that generally perform well on mental health access tend to share common characteristics:
- Large in-network behavioral health directories — access to care is only as good as the network. A plan with strong parity provisions on paper but a thin provider directory has more limited practical access than one with a broader panel.
- PPO structure over HMO — PPO plans typically allow use of out-of-network benefits, giving access to providers outside the in-network panel. HMO plans generally don't, making the in-network directory the hard ceiling on access.
- Integrated rather than carved-out behavioral health — when the same insurer administers both medical and behavioral health, navigation is simpler. When behavioral health is carved out to a separate MBHO (Carelon, Optum, Lucet), clients sometimes discover mid-treatment that their plan's mental health coverage works differently than they expected.
What "best" means from the practice side
A practice evaluating which payers to credential with is making a business decision. The factors that matter:
Reimbursement rates
Payer reimbursement for mental health services varies significantly — the difference between the highest and lowest commercial payer rate for the same CPT code can be 40% or more in some markets. UnitedHealthcare/Optum, Aetna, and Cigna are generally competitive in major markets. Regional BCBS plans vary considerably — some pay at the high end of commercial rates in their state; others pay below Medicare rates.
Medicare rates are the floor most discussions reference — a payer paying 80% of Medicare is meaningfully worse than one paying 120% of Medicare. Fee schedules are often negotiable and not always publicly available, but practices building their payer mix should ask about rates before investing in a credentialing application.
Authorization burden
Payers that require prior authorization for every block of sessions — with limited electronic submission options and slow review turnaround — add real administrative cost to the practice. A payer that pays $5 more per session but consumes three additional staff hours per month in authorization management may be less profitable than a lower-paying payer with minimal auth requirements.
Specific questions to ask before credentialing with any payer: Does this payer require authorization for initial sessions? For sessions beyond the first block? What is the typical turnaround on auth decisions? Can authorizations be submitted and checked electronically?
MBHO carve-out complexity
As covered in our billing guide, many major payers route mental health claims to a separate Managed Behavioral Health Organization. For credentialing, this means two separate applications — and two separate timelines. Practices should identify each payer's MBHO before submitting applications and run both in parallel.
Network openness
Some payers — particularly Medicaid managed care organizations in high-density markets — have closed panels. Applying to a closed panel consumes time that could go toward an application that will actually result in enrollment. It's worth confirming current panel status before investing in the application.
There is no universally "best" payer for mental health practices. The right network strategy depends on the practice's market, specialty mix, and client population. A PMHNP-led practice focused on Medicaid patients operates in a completely different payer environment than a private-pay-leaning therapist who takes one or two commercial plans. Payer selection should follow from a clear picture of who the practice intends to serve — not from a generic ranking.
The payers worth prioritizing first
For most mental health practices launching or expanding in major US markets, the initial credentialing priorities tend to be:
- The dominant commercial payer in the local market — often BCBS in the Southeast and Midwest, Aetna or UHC in major metro areas. The largest single payer by covered lives in the target market should go first, because it covers the most potential clients and produces the fastest impact on access once enrollment is active.
- UnitedHealthcare / Optum Behavioral Health — one of the largest behavioral health networks nationally. The credentialing timeline is long (including Optum/UBH enrollment as the MBHO), so submitting early matters.
- Aetna / Carelon Behavioral Health — Aetna covers a large share of commercially insured clients in most markets; Carelon handles Aetna's behavioral health carve-out in many of them.
- Cigna / Evernorth Behavioral Health — strong commercial presence in most markets; Evernorth manages the behavioral health component for most Cigna plans.
- Medicare — essential for practices serving adults 65 and older, and worth completing early since PECOS enrollment has its own timeline separate from commercial credentialing. LPCs and LMFTs gained Medicare billing rights in 2024 and should prioritize this if they haven't enrolled yet.
- State Medicaid / MCOs — high priority for practices with a mission to serve low-income clients or in markets with high Medicaid penetration. Each state's Medicaid program and each managed care organization require separate enrollment.
The sequencing strategy — which payers first, how to run applications in parallel, and what to do with clients during the waiting period — is covered in detail in our credentialing guide. Questions about your specific market's payer mix and where to start? Schedule a consultation — a direct conversation with a principal, not a sales script.