Tennessee’s Medicaid program — TennCare — stands among the most distinctive in the country for two reasons that work in opposite directions. First, Tennessee has not expanded Medicaid under the ACA and operates one of the narrowest adult Medicaid eligibility frameworks of any state, creating a coverage gap for low-income adults without dependent children who earn too little for marketplace subsidies but fit no TennCare category. Second, TennCare has expanded its benefits more meaningfully than most non-expansion states, adding adult dental coverage, extended postpartum Medicaid through 12 months, and a diaper benefit for infants under two.
The result is a Medicaid program that is hard to qualify for but increasingly comprehensive for those who do. For Tennessee providers, the billing environment is defined by three statewide MCOs handling virtually all TennCare members, a single statewide pharmacy benefit manager, a strict 120-day timely filing window that is significantly shorter than most states, and the unique TennCare III block grant structure — the only modified block grant Medicaid arrangement operating anywhere in the country.
TennCare covers approximately 1.4 million Tennesseans — about 20% of the state’s population. This guide covers the complete Tennessee billing and credentialing framework for 2026.
Medical billing in Tennessee
TennCare is one of the most restrictive Medicaid programs in the country — no ACA expansion, coverage gap for childless adults, just 3 MCOs, and a strict 120-day timely filing window shorter than almost every other state.
Most state Medicaid programs allow 12 months. Tennessee TennCare gives you 120 days from the date of service. Submit TennCare claims within 30 days to leave time for resubmission if rejected. This window is non-negotiable and almost never waived for provider-side delays.
Single statewide PBM: OptumRx — same formulary across all 3 MCOs since Jan 2020.
Single dental manager: Renaissance (formerly DentaQuest) — same dental network across all 3 MCOs.
Provider helpline: 800-852-2683 · Provider.registration@tn.gov
Workers’ comp: Private carrier system. Injured worker selects from employer’s physician panel (3+ physicians). Tennessee WC fee schedule applies.
Part 1: TennCare — Structure and Programs
How TennCare Works
TennCare is administered by the Tennessee Division of TennCare within the Department of Finance and Administration. Provider enrollment and claims operate through the TennCare Provider Operations Center at tn.gov/tenncare/providers.html.
TennCare Provider Operations Center: 800-852-2683 (Monday–Friday, 8 a.m.–4:30 p.m. CST) Email: Provider.registration@tn.gov
TennCare operates almost entirely through managed care. There is no meaningful fee-for-service pathway for most providers. Every provider who wants to bill TennCare must:
- Enroll with TennCare to receive a Tennessee Medicaid ID
- Separately contract with each MCO they want to bill
These are sequential, not simultaneous — MCO contracting cannot begin until TennCare state enrollment is confirmed.
Who TennCare Covers — Narrow Eligibility
Tennessee has not expanded Medicaid under the ACA. Eligibility is restricted to specific demographic categories:
| Population | Income Limit |
|---|---|
| Children (ages 0–18) | Up to 195% FPL |
| CoverKids (CHIP) | Up to 250% FPL |
| Pregnant women | Up to 250% FPL (12-month postpartum coverage) |
| Parents and caretaker relatives | Up to 105% FPL |
| Aged, Blind, Disabled (ABD) | Non-MAGI rules, asset test applies |
| Adults without dependent children | NOT eligible (coverage gap) |
⚠️ Coverage gap: Low-income adults without dependent children who earn under approximately $1,330/month (100% FPL) fall into the coverage gap — too low for marketplace subsidies, no TennCare category. For these patients, Tennessee offers CoverRx (pharmacy assistance only) and refers to FQHCs for sliding-scale care.
TennCare III — The Only Medicaid Block Grant in the US
TennCare operates under TennCare III, a modified block grant arrangement approved by CMS in 2021. This is the only state Medicaid program operating under a block grant model. The block grant affects how federal money flows to the state but does not change individual eligibility thresholds or clinical billing requirements for providers. It does give Tennessee more flexibility on benefits and some cost controls.
2026 Benefit Expansions — What’s New
Tennessee has expanded TennCare benefits meaningfully in recent years. Providers should be aware of these 2026-active benefits:
Adult dental coverage: TennCare now covers dental care for all adult members — not just children and pregnant women. Covered services include exams, X-rays, fillings, extractions, cleanings, and anesthesia. This is a significant expansion that creates new billing opportunities for dental providers.
12-month postpartum coverage: Pregnant women who qualify for TennCare receive coverage for a full 12 months after delivery, rather than the previous 60-day limit. Tennessee extended this coverage in 2022 and it remains active in 2026.
Diaper benefit: TennCare and CoverKids provide 100 diapers per month for children under age 2 enrolled in the program.
Part 2: The Three TennCare MCOs
TennCare is served by three MCOs covering virtually all 1.4 million members, plus a fourth specialized plan. This is one of the most concentrated Medicaid managed care markets in the country — most states have ten or more MCOs.
Active TennCare MCOs — 2026
| MCO | Market Share | Members | Parent Organization |
|---|---|---|---|
| BlueCare Tennessee | ~37.7% | ~552,000 | Volunteer State Health Plan / BlueCross BlueShield of Tennessee |
| Wellpoint Tennessee | ~29.9% | ~439,000 | Anthem (formerly Amerigroup, rebranded January 2024) |
| UnitedHealthcare Community Plan of Tennessee | ~29.9% | ~439,000 | UnitedHealth Group |
| TennCare Select | Special populations | N/A | Administered by BlueCare |
⚠️ Wellpoint name change: Amerigroup rebranded to Wellpoint in January 2024. Provider contracts, payer IDs, and billing portals carry the Wellpoint name in 2026. Update any internal references that still say “Amerigroup” for Tennessee.
BlueCare Tennessee — Largest TennCare MCO
BlueCare Tennessee is operated by Volunteer State Health Plan, Inc. (VSHP), a BlueCross BlueShield Association independent licensee and affiliate of BlueCross BlueShield of Tennessee. With approximately 37.7% of TennCare’s market, BlueCare is the largest single TennCare MCO.
BlueCare Tennessee provider portal: Availity and the BlueCare provider-specific portal at bluecare.bcbst.com/providers BlueCare credentialing: 1-800-924-7141 or Credentials@bcbst.com
TennCare Select — Special Populations
TennCare Select is administered by BlueCare under a separate Prepaid Inpatient Health Plan (PIHP) contract. It serves:
- SSI children under 21
- Foster care youth
- Members with intellectual or developmental disabilities (through SelectCommunity)
- Members in geographic areas with insufficient standard MCO capacity
Providers serving these populations must credential with TennCare Select separately from standard BlueCare credentialing.
Single Statewide PBM and Dental Manager
Two features make TennCare’s billing environment simpler than most managed care states:
Single PBM (OptumRx): Since January 1, 2020, all TennCare pharmacy claims route through OptumRx regardless of which MCO a member is enrolled with. No MCO-specific formularies to navigate for pharmacy.
Single Dental Benefits Manager (Renaissance, formerly DentaQuest): The same dental network and same dental benefit rules apply across all three MCOs. For dental providers, there is one dental manager to credential with — not three.
Part 3: CHOICES and ECF CHOICES — Long-Term Care Programs
Tennessee’s long-term care programs operate under the TennCare managed care umbrella through the CHOICES and ECF CHOICES programs.
CHOICES provides long-term services and supports (LTSS) for elderly Tennesseans and those with physical disabilities — including nursing facility care, assisted living, home health aides, and home and community-based services.
ECF CHOICES (Employment and Community First CHOICES) supports individuals with intellectual and developmental disabilities in community-based employment and living.
Both programs are administered through the three standard MCOs. LTSS services for CHOICES and ECF CHOICES members route to the same MCO as their physical health benefits.
PACE: Tennessee also operates a Program of All-Inclusive Care for the Elderly (PACE) serving individuals over 55 requiring nursing home level of care in Hamilton County.
Part 4: Tennessee Provider Enrollment — CHAMPS and MCO Contracting
TennCare State Enrollment
Provider enrollment with TennCare is through the TennCare provider enrollment portal at tn.gov/tenncare/providers.html.
Provider Operations Center: 800-852-2683 Email: Provider.registration@tn.gov
Key enrollment requirements:
- Valid NPI — Type 1 for individual providers; Type 2 for group practices (both required)
- Valid Tennessee state license
- Taxonomy codes matching the provider’s specialty — mismatched taxonomy is a frequent rejection cause
- Correct enrollment category selection — an incorrect category triggers denial and requires resubmission
Processing time: TennCare has up to 45 days to make an enrollment decision. In practice, clean applications average 30 to 45 days.
CAQH ProView: All three TennCare MCOs use CAQH ProView as a primary data source. An expired CAQH attestation can halt a pending TennCare application. Maintain current CAQH re-attestation (every 120 days) before beginning any TennCare enrollment.
MCO Contracting (After TennCare Enrollment)
After TennCare enrollment is confirmed and a Tennessee Medicaid ID is issued, contract separately with each MCO:
- Contact BlueCare Tennessee, Wellpoint, and UnitedHealthcare Community Plan provider relations separately
- Each MCO negotiates its own fee schedule and manages its own prior authorization
- Each MCO maintains its own claims portal (most use Availity as a primary portal)
- Confirm network activation effective date before submitting first claims
Part 5: Timely Filing in Tennessee
⚠️ Tennessee’s 120-day timely filing window is one of the strictest in the country. This is significantly shorter than most state Medicaid programs. Missing this window means the claim is lost — no exceptions.
Timely Filing Limits
| Payer | Timely Filing Limit | Notes |
|---|---|---|
| TennCare BlueCare Tennessee | 120 days from date of service | Confirm with contract |
| TennCare Wellpoint (Amerigroup) | 120 days from date of service | Confirm with contract |
| TennCare UnitedHealthcare | 120 days from date of service | Confirm with contract |
| Medicare (Palmetto GBA J11) | 12 months from date of service | Palmetto GBA is Tennessee’s MAC |
| Medicare Advantage | 90–120 days from date of service | MA plans set own deadlines |
| BlueCross BlueShield of Tennessee | 180 days from date of service | Dominant commercial carrier |
| Cigna (commercial) | 90–180 days from date of service | Strong in Nashville |
| UnitedHealthcare (commercial) | 90–180 days from date of service | Varies by employer contract |
| Aetna (commercial) | 120 days from date of service | Verify with contract |
| Humana | 90 days from date of service | Shortest window |
Tennessee MAC — Palmetto GBA J11: Tennessee’s Medicare Administrative Contractor is Palmetto GBA, covering Jurisdiction 11 (Tennessee, Virginia, West Virginia, North Carolina, and South Carolina). For Medicare billing resources, Tennessee providers use palmettogba.com.
⚠️ Build the 120-day TennCare window into your AR workflow immediately. Many practices accustomed to 12-month state Medicaid windows discover Tennessee’s 120-day limit only after missing it. Submit TennCare claims within 30 days of service to ensure time for resubmission if rejected.
Part 6: Commercial Payer Landscape in Tennessee
BlueCross BlueShield of Tennessee (BCBST) — Dominant Commercial Carrier
BlueCross BlueShield of Tennessee is the dominant commercial insurer in the state across all three major geographic regions — West Tennessee (Memphis), Middle Tennessee (Nashville), and East Tennessee (Knoxville/Chattanooga). BCBST also operates BlueCare Tennessee (the TennCare MCO) — giving it a dual presence across commercial and Medicaid markets. Any Tennessee practice must prioritize BCBST credentialing above all other commercial payers.
BCBST operates across all 95 Tennessee counties with regional eBusiness representatives:
- Middle TN: Faye Mangold — Faye_Mangold@bcbst.com — (423) 535-2750
- West TN: Vivian Williams — Vivian_Williams@bcbst.com — (901) 544-2622
- East TN: Faith Daniel — Faith_Daniel@bcbst.com — (423) 535-6796
Other Major Commercial Payers
Cigna is headquartered in Connecticut but maintains its primary operational hub in Nashville, giving it particularly strong commercial presence in Middle Tennessee and the Nashville metropolitan area. For practices in Nashville and surrounding counties, Cigna is the second most important commercial credentialing priority.
UnitedHealthcare maintains significant employer-sponsored commercial presence statewide, with particular strength in large employer groups across all three Tennessee regions.
Aetna has commercial presence particularly for large employer groups in major metropolitan areas.
Humana is strong in Medicare Advantage across Tennessee, reflecting the state’s significant elderly population in both urban and rural markets.
Regional market notes:
- Nashville (Davidson/Williamson County): BCBST dominant; Cigna operationally strong; UnitedHealthcare significant
- Memphis (Shelby County): BCBST dominant; UnitedHealthcare significant; Delta Regional Medical Center influence
- Knoxville (Knox County): BCBST dominant; Covenant Health and UT Medical Center influence
- Chattanooga (Hamilton County): BCBST dominant; Erlanger Health system influence; PACE program in Hamilton County
- Northeast Tennessee: Ballad Health COPA creates a distinct healthcare market — verify payer relationships given the Certificate of Public Advantage monopoly structure
Part 7: Commercial Billing Laws and Workers’ Compensation
Tennessee Prior Authorization — Commercial Plans
Tennessee’s commercial prior authorization standards apply to fully-insured plans regulated by the Tennessee Department of Commerce and Insurance (TDCI):
- Standard PA determination: 15 calendar days from receipt of complete information
- Urgent PA determination: 72 hours
- Emergency services: No prior authorization required
Providers should document PA request submission dates. If a Tennessee commercial payer misses the 15-day standard window, escalate to the TDCI.
Tennessee Workers’ Compensation
Tennessee operates a private carrier workers’ compensation system. All employers with 5 or more employees (1 or more in construction) must carry coverage. Tennessee WC is regulated by the Tennessee Bureau of Workers’ Compensation at tn.gov/workforce/injuries-at-work.html.
Key Tennessee WC billing rules:
- Tennessee uses a medical fee schedule for WC services — verify current rates at the Bureau of Workers’ Compensation
- The injured worker is directed to a panel of physicians selected by the employer — typically a list of 3 or more physicians from which the worker may choose
- Unlike Wisconsin (where the worker freely selects) or Ohio (state fund), Tennessee uses a managed panel approach
- Identify the employer’s WC carrier and claim number before billing
- Authorization requirements vary by carrier — confirm before non-emergency services
Part 8: Credentialing in Tennessee
Step 1 — TennCare State Enrollment
Portal: tn.gov/tenncare/providers.html Helpline: 800-852-2683
Processing time: 30–45 days. Use correct enrollment category — incorrect category triggers denial.
Step 2 — MCO Credentialing (Three Separate Processes)
After TennCare enrollment is confirmed:
- CAQH ProView current and re-attested (required by all three MCOs)
- Contact BlueCare, Wellpoint, and UnitedHealthcare provider relations separately
- Each MCO: 60–90 days for credentialing and contracting
- Confirm effective date before billing
Tennessee State Licensing
| Provider Type | Board |
|---|---|
| Physicians (MD/DO) | Tennessee Board of Medical Examiners — tn.gov/health |
| Nurse Practitioners | Tennessee Board of Nursing — tn.gov/health |
| Physician Assistants | Tennessee Board of Medical Examiners |
| All licensed providers | Tennessee Department of Health (TDH) — tn.gov/health |
Tennessee physician licenses renew on a biennial cycle. Build 90-day advance renewal reminders.
Tennessee Credentialing Timeline
| Payer / Enrollment | Typical Timeline |
|---|---|
| TennCare state enrollment | 30–45 days |
| BlueCare / Wellpoint / UHC (each) | 60–90 days after TennCare approval |
| TennCare Select (special populations) | Separate — 60–90 days via BlueCare |
| BCBST (commercial) | 60–90 days |
| Cigna / UnitedHealthcare | 60–90 days |
| Aetna / Humana | 90–120 days |
| Medicare PECOS (Palmetto GBA J11) | 60–90 days |
Plan at least 120 days before first patient care date for new Tennessee providers.
What Tennessee Providers Should Do Right Now
For TennCare billing:
- Build the 120-day timely filing window into your AR workflow immediately — submit TennCare claims within 30 days of service
- Confirm the Amerigroup → Wellpoint rebrand is reflected in all your billing system payer references
- Update single statewide pharmacy → OptumRx and dental → Renaissance in your billing system
- If you provide adult dental services — confirm billing through Renaissance under the expanded adult dental benefit effective in 2026
For MCO enrollment:
- Confirm TennCare state enrollment is active and your Medicaid ID is current before initiating any MCO contracting
- Ensure CAQH ProView is re-attested within 120 days before any MCO application
- For practices serving foster care youth or patients with IDD — initiate TennCare Select credentialing with BlueCare separately from standard BlueCare credentialing
For commercial billing:
- Prioritize BCBST above all other Tennessee commercial payers — it is dominant across all three Tennessee regions
- For Nashville-area practices — Cigna credentialing is second priority
- Map Tennessee commercial PA timelines: 15-day standard, 72-hour urgent; escalate to TDCI when payers miss windows
At ClaimsXperts, we work with Tennessee providers on TennCare enrollment, MCO credentialing with all three plans, BCBST commercial credentialing, and full-cycle revenue cycle management.
Contact us today at https://www.rcmmasters.com/#contactus
ClaimsXperts is a Revenue Cycle Management company based in Frisco, TX.
