Tennessee Medicaid Mental Health Billing: A Guide for Therapists and Psychiatrists

Tennessee Medicaid mental health billing runs through TennCare, the state’s Medicaid program, and it works differently from billing a private plan. You register with the state first, then you contract with each managed care organization (MCO), and each MCO processes its own claims. This guide is for psychotherapists and psychiatric prescribers in private practice. It covers registration, the MCOs, claims basics and the 120-day filing window.

What TennCare is and who pays your claims

TennCare is Tennessee’s Medicaid program, run by the Division of TennCare. TennCare does not pay most claims itself. According to the TennCare managed care contractors page, medical, behavioral and long-term care services are covered by “at risk” managed care organizations, and each one processes its own claims. Each MCO also sets its own provider contracts and fee schedules.

That means a TennCare member’s therapy claim goes to the member’s health plan, not to one central payer. Check which plan the member has before every visit.

The TennCare MCOs in Tennessee

The TennCare health plans page lists Wellpoint (formerly Amerigroup), BlueCare, UnitedHealthcare Community Plan and TennCare Select. Members can change plans only during their region’s change period. TennCare’s enrollment FAQ lists those periods as March for West Tennessee, May for Middle Tennessee and July for East Tennessee, with changes taking effect the first of the following month.

Because plans vary by member and region, a client’s card tells you where to send the claim. Do not assume one plan’s rules apply to another.

Tennessee Medicaid mental health billing: registration and contracting

The state and the plans are separate steps, and both are required. These are Medicaid rules only. They do not describe private plans or Medicare.

Step 1: Register with TennCare

The TennCare provider enrollment FAQ says registration with the Division of TennCare is required. Individual providers register electronically and are placed on the Data Spring roster. Data Spring is the name TennCare uses for what was CAQH. Group practices register through an online account that also handles address changes and adding individual providers.

Registration produces a Medicaid ID. The FAQ states that without a valid, active Medicaid ID, a provider cannot be considered for MCO contracting or paid for services to TennCare members. Existing providers must revalidate by registering again.

Step 2: Contract with each MCO

Registering does not put you in any plan’s network. The FAQ says providers must contract with each TennCare MCO separately. Each plan runs its own credentialing, so apply to the plans whose members you expect to see. Start with the credentialing and network status resource to understand the difference between being credentialed and being in network.

Claims basics and the 120-day filing window

A clean claim is one a payer can process without asking for more information. For Medicaid, that starts with the right member ID, the right plan and your registered Medicaid ID. A claim sent to the wrong plan is a claim that can age out.

TennCare’s provider pop quiz uses an example with a 120-day window to file with the MCO. For a member who becomes eligible retroactively, the 120 days starts when the MCO learns of the enrollment, not on the date of service. Each plan publishes its own policy, so read your plan’s current rules before you rely on the number. Our Tennessee timely filing guide covers deadlines across payers.

Behavioral health coverage and billing points

TennCare’s benefit packages document (last updated April 20, 2026) shows outpatient mental health services as covered for children under 21 and for adults 21 and older without Medicare. All covered services must be medically necessary. For members who also have Medicare, the document says Medicare is primary. It does not list prior authorization rules, so ask the member’s plan.

Three billing points matter in daily work:

• Confirm TennCare eligibility yourself. The enrollment FAQ says it is the provider’s responsibility to determine whether a patient is a TennCare enrollee.
• Do not bill members for missed appointments. The FAQ says providers may not bill enrollees or MCOs for them.
• TennCare payment is payment in full, so balance billing for covered services is not allowed.

Use the right codes and place of service on every claim. Our individual psychotherapy code guide, documentation requirements and place of service codes pages help with the basics. Psychiatric prescribers who add psychotherapy to an E/M visit should also read our guide on add-on claim denials.

Medicaid is not private insurance or Medicare

Private plans, Medicare and TennCare each have their own enrollment, forms and deadlines. Private plan work is covered in our private insurances resource. Medicare has its own rules, covered in the Medicare timely filing guide. Keep a separate tracking sheet for each, and keep Tennessee Medicaid mental health billing in its own workflow so TennCare claims never mix with commercial ones.

Monday morning checklist

• Confirm you have an active TennCare Medicaid ID before any Tennessee Medicaid mental health billing starts.
• List which MCOs you have contracted with, and which you have not.
• Check every TennCare client’s current plan before the next visit.
• Read each plan’s current claim filing policy and note its limit.
• Review unpaid TennCare claims and sort them by filing date.

The short version: Tennessee Medicaid mental health billing

Tennessee Medicaid mental health billing starts with registering with TennCare and getting a Medicaid ID. Then contract with each MCO you want to bill, confirm the member’s plan every visit and file inside the plan’s window. Keep it separate from private plan and Medicare work.

How MCM South helps

MCM South Medical Billing Service, LLC works only with mental and behavioral health practices. We help solo and group practices keep claims organized and moving. Our who we serve page shows the practices we support, and the insurance companies contact directory helps you find the right department at each payer. Ask for a free quote if you want help with Tennessee Medicaid mental health billing.

Where MCM South works

MCM South works with psychotherapists and psychiatrists in ten currently served states: Georgia, Massachusetts, Connecticut, Texas, Florida, New York, Colorado, Tennessee, North Carolina and Illinois. See insurance company contacts by state, who we serve and the state billing guides. This post is operational guidance for billing, not legal advice.

Frequently asked questions