Ambetter, sold by Centene's Florida entity, carries one of the largest marketplace enrollments in the state but also one of 2026's steepest approved increases at 37.9%. UnitedHealthcare is the nation's largest health insurer, but its Florida individual-marketplace footprint for 2026 is selective rather than statewide. Both compete on Florida's 2026 ACA marketplace, where 16 insurers now participate and the statewide weighted-average rate rose roughly 31.5% before subsidies — but the two carriers take very different approaches to networks, plan types, and price.
This comparison breaks down how Ambetter and UnitedHealthcare differ on county availability, provider networks, plan types, 2026 premiums, and member experience — and which type of Florida enrollee each one fits best.
Comparing ACA plans in Florida
Low premiums and broad footprint: Ambetter is consistently among the lowest-cost options in Florida's most populous counties and has long carried one of the largest marketplace enrollments in the state. For subsidy-eligible shoppers who choose by price, Ambetter's Silver plans are frequently at or near the benchmark.
My Health Pays rewards: Ambetter members can earn My Health Pays reward dollars for completing a wellness visit, annual checkup, or health survey — funds that can offset premiums or be spent on everyday health items. It is one of the more generous wellness-incentive programs on the Florida exchange.
Centene scale and managed-care roots: Ambetter is backed by Centene, the country's largest Medicaid managed-care organization, which gives it deep experience serving lower-income and subsidy-eligible members transitioning between Medicaid and marketplace coverage.
National scale and brand: UnitedHealthcare is the largest health insurer in the country, and its size brings deep resources, a polished member app, and integration with Optum's pharmacy and care-management services.
Digital tools and virtual care: UnitedHealthcare's app and virtual-visit options make routine care and prescription management convenient, and its provider-finder tools are mature and well-maintained.
Optum integration: Members benefit from UnitedHealthcare's tie-in with Optum for pharmacy, behavioral health, and care coordination — a vertically integrated model few Florida competitors can match.
| Feature | Ambetter | UnitedHealthcare |
|---|---|---|
| Founded / status | Centene's ACA brand; in FL since 2014 | National carrier; selective FL individual footprint |
| Plan types | HMO / EPO | HMO / EPO |
| Florida county availability | Broad — most populous FL counties | Select FL counties |
| Telehealth | Ambetter Telehealth included | Virtual visits included |
| Provider network | Large but value-tiered | Large nationally; narrower for FL individual plans |
| Out-of-network coverage | Emergency only | Emergency only |
| Signature feature | My Health Pays rewards | National brand; UnitedHealthcare app + Optum |
| 2026 approved rate change | +37.9% (one of the steepest in FL) | +29.9% |
Ambetter manages cost through value-tiered networks that are broad in major metros but narrower than Florida Blue's. Its 37.9% approved increase for 2026 is among the highest in the state, so its historic price edge narrows in some counties — always confirm your doctors are in the specific Ambetter network for your plan.
UnitedHealthcare's national employer network is enormous, but its Florida individual-marketplace network for 2026 is narrower and offered in select counties only as HMO/EPO plans — with out-of-network care covered for emergencies only. Do not assume the broad UnitedHealthcare employer network you may know carries over to its individual plans.
The network gap between these two carriers is the single most important thing to check before you enroll, because an ACA plan only pays in full when you stay in its network.
Sticker premiums rose across the board for 2026 — Florida's statewide weighted average climbed about 31.5% before subsidies. The illustrative Silver-plan figures below show how Ambetter and UnitedHealthcare compare in counties where both compete.
| County (35-yr-old, non-smoker, Silver) | Ambetter | UnitedHealthcare |
|---|---|---|
| Miami-Dade County | ~$470/mo | ~$510/mo |
| Orange (Orlando) County | ~$445/mo | ~$485/mo |
| Hillsborough (Tampa) County | ~$435/mo | ~$475/mo |
Approximate 2026 unsubsidized premiums for a 35-year-old non-smoker, before APTC subsidies. What you actually pay is set by the benchmark Silver plan in your rating area; more than 95% of Florida enrollees qualify for a subsidy. As a reference point, regulators cited a 28-year-old in Duval County on a Silver plan moving from about $149 to roughly $281 per month for 2026.
A licensed Florida health insurance agent can compare your 2026 options county by county and check whether your providers are in-network — at no cost to you.
Compare Plans in Your County