Louisiana's Gulf Coast is different from the rest of the Gulf Coast in a critical way: it's the only Gulf Coast state that has fully expanded Medicaid under the ACA. That single policy decision — made in 2016 — has made Louisiana's health insurance landscape meaningfully more accessible than Florida, Alabama, Mississippi, or Texas. For low-income Gulf Coast residents, Louisiana is genuinely the better place to need health coverage.
This guide covers health insurance across Louisiana's Gulf Coast parishes — the New Orleans metro (Orleans, Jefferson, St. Tammany, Plaquemines), the Cajun coastal communities (Terrebonne, Lafourche, St. Mary, Iberia), and inland parishes that function as part of the Gulf Coast economy. The oil and gas industry, fishing, hospitality, and port commerce define this coast, and each sector has its own coverage profile.
The practical effect of Medicaid expansion in Louisiana's Gulf Coast communities: oil and gas contract workers between jobs, hospitality workers in the off-season, fishing industry workers with variable income, and low-wage service workers in the New Orleans tourism economy are all potential Medicaid enrollees. In Alabama, Texas, or Florida, these same workers would often fall into the coverage gap. In Louisiana, they have options.
Louisiana Medicaid is administered through managed care plans — Aetna Better Health, Amerigroup, Healthy Blue, Louisiana Healthcare Connections, and United Healthcare. You'll be assigned to a plan when you enroll in Medicaid; you can change plans during open periods.
Above 138% FPL, the ACA marketplace is the path. Louisiana uses HealthCare.gov. The New Orleans metro — Orleans, Jefferson, St. Tammany, Plaquemines parishes — has one of the more competitive ACA markets in the Gulf Coast region, with 4–5 carriers typically available.
The New Orleans metropolitan area is the health insurance hub of Louisiana's Gulf Coast. Major health systems — Tulane Medical Center, LSU Health New Orleans, Ochsner Health, LCMC Health — create broad in-network options for most ACA and Medicaid plan holders. The metro's carrier competition is real: multiple insurers compete for enrollment, which keeps pricing more competitive than in smaller coastal markets.
New Orleans has high rates of both Medicaid enrollment and ACA marketplace participation. The combination of expansion Medicaid and strong ACA marketplace options means that most New Orleans metro residents below 400% FPL have viable, affordable coverage options — assuming they actually enroll.
St. Tammany Parish (Covington, Mandeville) north of Lake Pontchartrain is growing rapidly. The Northshore has a strong provider base and competitive insurance market. Residents there can access New Orleans metro carriers with similar plan options.
The Cajun coastal parishes — Houma, Thibodaux, Morgan City — have a unique health insurance profile driven by the offshore oil and gas industry. Offshore workers often have employer-sponsored group plans from their operating company contracts. Between jobs or after layoffs, they need ACA plans or qualify for Medicaid.
These parishes are more rural and have fewer carrier options than the New Orleans metro. Provider access is also more limited — residents may need to travel to New Orleans or Baton Rouge for specialty care. Check network carefully before choosing a plan if you're in a rural coastal parish.