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Louisiana Medicare, by the Numbers

The data layer behind our Louisiana guide and all 63 city pages, in one place: CMS enrollment, Census demographics, and federal shortage designations, parish by parish.

Plans we accept in Louisiana covering ~71.8% of Louisiana's Medicare beneficiaries
  • Original Medicare
  • UnitedHealthcare ~39% of MA members
  • Aetna ~11% of MA members

Coverage data 2024-2025. Plan networks change - we confirm exactly what your plan covers before any work begins.

955,821Medicare beneficiaries statewide (2025)
56.6%chose Medicare Advantage plans
230,295dual-eligible for Medicare and Medicaid
221,469Louisiana residents 65+ live alone
126 minmedian ER visit statewide (CMS)
178federal primary-care shortage designations

Medicare Enrollment by Parish

The 38 Louisiana parishes our city pages cover (Louisiana has parishes instead of counties), with 859,877 beneficiaries. Each parish links to its anchor city page.

Parish Medicare beneficiaries Medicare Advantage share Dual-eligible Residents 65+ Shortage designations
Jefferson Parish 93,699 70.8% 19,685 78,367 9
East Baton Rouge Parish 83,258 63.4% 18,278 67,353 4
Orleans Parish 68,955 68% 22,946 61,879 9
St. Tammany Parish 61,738 61.5% 8,703 48,517 0
Caddo Parish 52,742 50.8% 14,177 42,913 4
Lafayette Parish 47,088 40.1% 9,316 35,109 2
Calcasieu Parish 39,789 44.1% 8,096 32,572 6
Ouachita Parish 31,000 49.2% 8,296 24,569 3
Rapides Parish 29,039 41.6% 7,945 21,434 3
Tangipahoa Parish 27,726 63.1% 7,577 20,261 4
Livingston Parish 25,170 68% 4,661 19,746 1
Bossier Parish 23,580 41.7% 4,251 19,355 1
Terrebonne Parish 22,544 58.6% 5,583 16,549 2
Ascension Parish 21,538 68.5% 3,308 16,366 2
Lafourche Parish 20,065 59.7% 4,231 15,662 2
St. Landry Parish 19,968 48.9% 6,351 13,649 8
Iberia Parish 15,952 53% 4,452 11,164 2
Acadia Parish 13,087 45.3% 3,770 9,227 1
Vermilion Parish 12,454 48.5% 3,062 9,161 6
St. Martin Parish 11,550 52.3% 2,992 8,544 1
St. Mary Parish 11,386 62.4% 3,180 8,704 3
Washington Parish 10,932 61% 3,609 8,387 3
St. Charles Parish 10,413 74.1% 1,629 7,715 0
Webster Parish 9,819 48.7% 2,577 7,320 2
Avoyelles Parish 9,204 48.1% 3,197 6,771 11
St. John the Baptist Parish 8,979 75.2% 2,288 6,169 1
Vernon Parish 8,113 35.5% 1,687 6,470 1
Lincoln Parish 8,099 45.1% 1,820 6,751 1
Beauregard Parish 8,036 38.1% 1,606 5,867 4
Natchitoches Parish 8,016 45.3% 2,225 6,213 2
St. Bernard Parish 7,507 70.7% 2,219 5,622 0
Evangeline Parish 7,170 42.9% 2,514 5,048 5
Jefferson Davis Parish 6,957 37% 1,713 5,300 2
Iberville Parish 6,821 72.1% 1,780 5,184 5
Morehouse Parish 6,616 55.1% 2,234 4,833 4
Allen Parish 4,751 43.9% 1,326 3,250 10
Plaquemines Parish 4,108 68.9% 883 3,214 2
Madison Parish 2,008 48.6% 762 1,644 1

Statewide, 56.6% of beneficiaries chose Medicare Advantage in 2025. Parishes above that line see more prior authorizations and more denials worth appealing; parishes below it lean on Medigap, where Louisiana adds a yearly birthday rule: a Medigap policyholder has 63 days from each birthday to switch to a plan with equal or lesser benefits from the same insurer or an affiliate without health questions, and people on Medicare through disability get the same six-month Medigap open enrollment as people turning 65. About 14.1% of Louisiana seniors live below the poverty line, the group most likely to qualify for unclaimed help: Extra Help and Louisiana's Medicare Savings Programs, which have no asset test for QMB, SLMB, or QI. Louisiana has no state pharmaceutical assistance program, so the Medicare Savings Programs and Extra Help are the drug-cost help to claim. For the full rundown, sources included, see our Louisiana patient advocacy hub.

The Numbers Are the Backdrop. The Help Is the Point.

One dedicated advocate for the bills, appeals, appointments, and paperwork, serving all 64 Louisiana parishes virtually, usually at $0 with Medicare.

Or start from your city: every Louisiana city we serve.

Sources: CMS Medicare Monthly Enrollment (2025); US Census Bureau ACS 2023 5-year; CMS Care Compare Timely & Effective Care (median ER minutes, period ending 09/30/2025); HRSA Health Professional Shortage Area designation file. Data retrieved 2026-09-28. Understood Care is an independent private advocacy service, not a government agency.