Tennessee runs Medicaid through TennCare, a mandatory managed care program split across BlueCare, UnitedHealthcare Community Plan, and Wellpoint. Each MCO credentials, authorizes, and pays separately. Add a 120-day filing window set by state policy, a Medicare caseload handled entirely out of state, and a commercial market with one dominant carrier, and a correctly coded claim can still miss payment for reasons that have nothing to do with the visit itself.
A2Z Billings supports practices across Tennessee from our operations base in Michigan.
BlueCare, UnitedHealthcare Community Plan, and Wellpoint, plus TennCare Select for members with no other plan available
Initial claim filing window under TennCare Policy PAY 13-001
Palmetto GBA processes Tennessee Medicare Part A and B claims, alongside Alabama and Georgia
Newly eligible dual-eligible members must enroll in an integrated D-SNP tied to their TennCare MCO
None of the four run on the same calendar, and treating them as one payer is where most denials start.
Tennessee never expanded Medicaid past its original TennCare demonstration, so nearly every enrollee sits inside a managed care contract with BlueCare, UnitedHealthcare Community Plan, or Wellpoint.TennCare Select exists only for members with no other MCO available in their region, plus certain children with special health needs. A provider registers for a Medicaid ID with the Division of TennCare before any MCO credentialing can begin.
Members can change MCOs only during their region's annual change period: March in West Tennessee, May in Middle Tennessee, July in East Tennessee. A new enrollee also gets a one-time, 90-day window to switch. Miss both windows and a patient stays with a plan a practice may not be credentialed with until the next cycle comes around.
BlueCross BlueShield of Tennessee holds the largest share of the state's commercial market, so its fee schedule and prior authorization rules function as the default that most other contracts get measured against. UnitedHealthcare, Cigna, and Aetna carry meaningful volume in Nashville and Memphis employer plans, each running its own timely filing clock, commonly 90 to 180 days.
Palmetto GBA has held the Jurisdiction J Medicare Administrative Contractor award for Tennessee, Alabama, and Georgia since 2018, and CMS renewed the contract in 2024 through August 2031. Jurisdiction J processes roughly 6% of the nation's Part A and Part B claim volume from offices in South Carolina, so there is no in-state MAC office for a Tennessee provider to visit.
Methodist Le Bonheur Healthcare, Baptist Memorial Health Care, and Regional One Health anchor a market with a higher share of TennCare and uninsured patients than the rest of the state. Regional One in particular depends on accurate uncompensated care and disproportionate share reporting to stay funded. MCO change period: March
Vanderbilt University Medical Center, TriStar Health (HCA Healthcare's Nashville network), and Ascension Saint Thomas compete for the same commercially insured patients. Multi-facility credentialing moves faster when each hospital's own delegated credentialing calendar is tracked separately instead of as one region. MCO change period: May
Covenant Health and the University of Tennessee Medical Center serve Knoxville, while Ballad Health runs 20 hospitals across 29 counties of Northeast Tennessee and Southwest Virginia under a state Certificate of Public Advantage. Bills introduced in the 2026 General Assembly would dissolve that agreement by June 2028, worth watching for any practice credentialed there. MCO change period: July
Each pattern below traces back to a specific state rule, not a coding mistake
PAY 13-001 sets a 120-day initial filing window, but the clock doesn't always start on the date of service. When eligibility posts late, it starts the day the MCO learns of the enrollment, which only helps if the correct start date gets tracked instead of the visit date.
BlueCare, UnitedHealthcare Community Plan, and Wellpoint each run separate prior authorization systems for imaging, behavioral health, and therapy visits. A request filed through the wrong portal, or against the wrong plan's documentation standard, comes back denied even when the same request would clear under a different MCO.
A provider needs an active Medicaid ID from the Division of TennCare before any MCO begins its own credentialing. That step depends on a current CAQH ProView attestation, and an expired or mismatched attestation stalls the entire file while the 120-day clock keeps running.
T.C.A. Section 56-7-1002 requires state-regulated commercial plans to cover telehealth on the same terms as an in-person visit, but the statute doesn't treat an audio-only call as telehealth. Phone visits coded with a telehealth modifier get denied by commercial plans, even where TennCare's own program covers audio-only behavioral health separately.
Tennessee's Rural Health Clinics and FQHCs bill under a Prospective Payment System rate, then reconcile quarterly against the clinic's actual Medicaid cost report. A 2025 rule change lets TennCare adjust a clinic's scope directly, and denied MCO claims must be self-reported to the state Comptroller in writing to count toward settlement.
Newly eligible full dual-eligible members must now enroll in a fully integrated D-SNP tied to their MCO: BlueCare Plus, UnitedHealthcare Dual Complete, or Wellpoint Full Dual Advantage. Older, non-aligned Medicare Advantage enrollees keep their plan only until 2030, and crossover claims filed under the old sequencing are showing up as denials now.
Eligibility gets checked against the grand division a patient actually lives in, not just the MCO printed on their card, since a plan closed to new enrollment in one region can still be open in another. Retroactive eligibility dates get logged against the PAY 13-001 start-date rule the day they post, so a late-arriving Medicaid ID never turns into a missed filing deadline.
Every claim is matched to the correct authorization portal before submission, not after a denial arrives. Rural Health Clinic and FQHC accounts have their PPS visits tracked against the cost report throughout the year, so the quarterly reconciliation with TennCare is a formality rather than a scramble at close-out.
A service list only means something once you know which state rule it has to clear
Claims go out coded to the specific MCO or Medicare contractor on file, with the PAY 13-001 clock tracked from the correct start date rather than the visit date.
Coding follows current CPT, ICD-10-CM, and HCPCS guidance, with telehealth modifiers applied against T.C.A. Section 56-7-1002 instead of leftover pandemic-era habits.
We register the Medicaid ID with the Division of TennCare first, then run credentialing with each contracted MCO in parallel instead of one after another.
Every visit is checked against the member's current MCO assignment and grand division before the appointment, since TennCare enrollment can shift with little notice to the provider.
Requests go through the correct MCO portal under that plan's own documentation standard, tracked separately for BlueCare, UnitedHealthcare Community Plan, and Wellpoint.
Denials are sorted by root cause, timely filing, authorization, eligibility, or coding, then routed to whichever appeal path TennCare or the specific MCO actually allows.
ERA and paper remittance are posted against the correct expected amount for TennCare, Medicare, and commercial claims, with variances flagged instead of quietly written off.
Aging claims get worked against each payer's own clock, since a TennCare claim at 90 days needs a different response than a commercial claim at 90 days.
End-to-end oversight ties every stage above together, with monthly reporting on denial rate, days in AR, and clean claim rate broken out by payer.
The same MCO can apply a different standard depending on what's actually being billed.
TennCare covers many audio-only behavioral health visits even though commercial plans generally don't, and opioid treatment programs bill under their own separate coding set.
Controlled substance monitoring and injection authorizations get reviewed against each MCO's own utilization management vendor rather than one statewide standard.
Multi-visit authorizations expire mid-treatment more often than practices expect. A lapsed authorization on visit six denies every visit after it until a new one is on file.
Diagnostic imaging and remote cardiac monitoring route through separate MCO authorization systems, with Palmetto GBA's coverage determinations governing the Medicare side.
TennCare Kids, the state's EPSDT screening program, runs its own periodicity schedule and billing codes that general pediatric billing experience doesn't automatically cover.
Place-of-service and modifier accuracy decide whether a visit pays at the urgent care rate or gets bundled down to a standard office visit rate.
The order exists to keep a claim ahead of TennCare's clock, and to turn a denial into recovered revenue instead of a write-off.
Billing staff in Nashville and Memphis compete directly against Vanderbilt, TriStar, Methodist Le Bonheur, and the other large systems for the same experienced coders and AR specialists. Turnover in the role runs high once a hospital system down the street can pay more for the same skill set.
A practice that trains one or two in-house billers on TennCare's rules loses that expertise the day someone leaves. A team that already tracks the PAY 13-001 clock, the grand division change periods, and each MCO's authorization portal removes that single point of failure.
No, but most practices end up doing so. Because members can be reassigned to any of the three during their region's change period, contracting with only one or two risks losing patients a practice already treats once they get reassigned.
Registering for a Medicaid ID with the Division of TennCare typically takes a few weeks on its own, and each MCO then runs its own credentialing once that ID is active. Total time varies by provider type and how current the CAQH ProView attestation is.
The initial filing window is 120 days under Policy PAY 13-001, though the start date can shift for retroactive eligibility or third-party liability cases. A separate one-year window applies to certain school-based therapy claims tied to an Individualized Education Program.
Tennessee's telehealth parity law, T.C.A. Section 56-7-1002, doesn't classify an audio-only encounter as telehealth for commercial plans, so those visits generally need to be billed and documented as a standard office visit instead of a telehealth claim.
Each MCO runs its own appeal and reconsideration process on its own timeline, separate from TennCare's member grievance and appeal system. We track the applicable window for each MCO and file the reconsideration with whatever documentation that specific plan requires.
Yes. We track PPS visits against the clinic's Medicaid cost report throughout the year, so the quarterly settlement with TennCare reconciles cleanly instead of surfacing a large adjustment at the end of the reporting period.
Palmetto GBA, under its Jurisdiction J contract, processes Medicare Part A and Part B claims for Tennessee, Alabama, and Georgia. CMS renewed that contract in 2024 through August 2031.
