The honest answer is that it depends on the individual plan rather than the carrier, and it can change during the year. Here is what is actually knowable, and how to settle it for your own plan in about ten minutes.
Free hospital check
Is TriStar Health in the plan you’re looking at? I’ll check for you.
Enter your ZIP code. I’ll check TriStar Health, and any doctors you name, against every 2026 marketplace plan filed in your county, then send you the plans that include them and the date I checked. It costs nothing, and I only call if you ask me to.
- Your ZIP code
- Who to check — TriStar Health is filled in
- My answer, usually the same day
Open Enrollment for 2027 opens November 1. Cigna is leaving Tennessee’s marketplace for 2027. If your plan is from Cigna, it ends December 31, and the plan that replaces it may not include TriStar Health. I’ll check the 2027 plans for you before you choose.
Where TriStar Health operates
TriStar Health serves Nashville, Hermitage, Smyrna, Hendersonville, Springfield, Dickson in Tennessee. These are the carriers filing marketplace plans in those markets for 2026, taken from the CMS landscape file:
| Market | Carriers filing | Counties with a PPO |
|---|---|---|
| Nashville | 5 | 0 of 1 |
| Hermitage | 5 | 0 of 1 |
| Smyrna | 5 | 0 of 1 |
| Hendersonville | 5 | 0 of 1 |
| Springfield | 5 | 0 of 1 |
| Dickson | 4 | 0 of 1 |
Worth knowing: nowhere in Tennessee is a PPO sold on the marketplace at all. Every one of the 5,239 plans filed in Tennessee for 2026 is an EPO, so if TriStar Health is not in the network attached to the plan you buy, there is no out-of-network benefit to fall back on.
What is actually filed near TriStar Health
Plan supply and price vary county by county, and that variation is exactly what a price-sorted plan list hides:
| County | Market | Plans filed | PPO | Benchmark Silver, age 40 | Family of 4, per month |
|---|---|---|---|---|---|
| Davidson County | Hermitage | 65 | No | $752 | $2,406 |
| Dickson County | Dickson | 55 | No | $781 | $2,496 |
| Robertson County | Springfield | 65 | No | $752 | $2,406 |
| Rutherford County | Smyrna | 65 | No | $752 | $2,406 |
| Sumner County | Hendersonville | 65 | No | $752 | $2,406 |
Every plan filed in Davidson County for 2026 is an EPO — a restricted network. There is no PPO to fall back on, so if TriStar Health is outside the network attached to the plan you buy, there is no out-of-network benefit. Which plan you pick decides whether your hospital is covered.
Want cheaper coverage? Want better coverage? Not happy with what you have now? Same next step for all three — tell me your ZIP and the doctors you need covered, and I will check TriStar Health against every plan filed in your county.
PY2026 CMS filed data. Benchmark Silver is for a 40-year-old; the family figure is a four-person household before any premium tax credit. Your own premium depends on age, household, tobacco use and the credit you qualify for. Verify at enrollment.
Self-employed and need TriStar Health covered?
Yes, but the buying problem is different. A self-employed or 1099 household has no employer plan to fall back on and no HR department to check the network, so confirming that TriStar Health is in the specific plan you buy is entirely on you. You are buying in the individual market, and in Davidson County there is no PPO on the marketplace at all. Every on-exchange plan is a restricted network, so there is no out-of-network benefit to absorb a mistake. If TriStar Health sits outside the network attached to the plan you pick, that is simply the year you have bought.
The numbers above the table are what that looks like here. Benchmark Silver for a 40-year-old in Davidson County runs $752 a month, and a four-person household $2,406 — about $28,870 a year with no credit against it.
The second problem is that your income is a guess. Premium tax credits are calculated on what you project to earn next year — a number a 1099 earner, contractor or commission-paid household genuinely does not know in November. Above 400% of the federal poverty level there is no cap on repaying an advance credit, so a strong December can cost more than it earned. If your income moves, update the estimate on your exchange during the year rather than setting it once.
The mechanics of both — how the credit reconciles, and how to claim the self-employed premium deduction so an S-corp does not lose it — are the same wherever you live, so they live in one place rather than being repeated here: the self-employed premium deduction and subsidy reconciliation →
Two things decide your year here: whether TriStar Health is in the network of the specific plan you buy, and whether your income estimate holds. Getting the first wrong costs you access to the hospital; getting the second wrong costs you a bill in April.
Want cheaper coverage? Want better coverage? Not happy with what you have now? Same next step for all three — send me your ZIP and the doctors you need covered, and I will check TriStar Health against every plan filed in your county.
The TriStar Health hospitals in Tennessee
8 facilities, from the CMS Hospital General Information file (updated 22 July 2026). Listing them is not a statement about which plans contract with them — that is decided plan by plan.
| Hospital | City | County | Emergency services |
|---|---|---|---|
| Tristar Skyline Medical Center | Nashville | Davidson County | Yes |
| Tristar Horizon Medical Center | Dickson | Dickson County | Yes |
| Tristar Northcrest Medical Center | Springfield | Robertson County | Yes |
| Tristar Summit Medical Center | Hermitage | Davidson County | Yes |
| Tristar Centennial Medical Center | Nashville | Davidson County | Yes |
| Tristar Hendersonville Medical Center | Hendersonville | Sumner County | Yes |
| Tristar Southern Hills Medical Center | Nashville | Davidson County | Yes |
| Tristar Stonecrest Medical Center | Smyrna | Rutherford County | Yes |
Why nobody can give you a straight list
A carrier is not a network. The same insurer sells a broad-network plan and a narrow one side by side in the same county, and TriStar Health can be contracted with one and not the other. A page telling you “TriStar Health accepts Carrier X” is describing one plan on one date, and usually states neither.
Contracts are renegotiated mid-year too. A system and an insurer can part company in March, and patients usually find out from a letter afterwards. That is why the only answer worth having is one dated to when it was checked.
How to settle it for your plan
- Get the exact plan name and network name from your marketplace listing, not just the carrier.
- Search that network in the carrier’s own provider directory, set to the correct plan year.
- Call TriStar Health billing and read them the plan name. They will tell you whether they are contracted. This is the step that actually decides it.
- Check your individual physicians separately — anaesthesia, radiology and pathology are frequently contracted apart from the hospital.
- Note the date and who confirmed it.
More in Tennessee
Hospital systems
Ascension Saint Thomas · Baptist Memorial · Erlanger Health · Tennova Healthcare · Vanderbilt Health · Wellmont