MedicareInsights

Independent Medicare Advantage analytics · Public CMS data · Latest ingest June 15, 2026

Medicare market answers you can defend in the room.

Built on named CMS datasets for brokers planning AEP, strategy and finance teams sizing markets, and analysts who need the source file. Every figure carries its vintage, a provenance panel, a ready-made citation — and a "so what."

Where is Medicare Advantage gaining or losing share, and how fast? How does a plan or carrier compare on enrollment, stars, and exits? Where is Medicare drug spend and benefit value moving? What does the latest CMS policy change mean for my market? Where are winnable members, and what wins them?

Find your market

Drill from a state to a county. Works without JavaScript — type to filter, or browse the list.

Weighing more than one market? Compare markets side by side →

Alabama 58.5%

County pages for Alabama arrive with the full CPSC county pipeline. See the state page →

Alaska 31%

County pages for Alaska arrive with the full CPSC county pipeline. See the state page →

Arizona 63.4%4 counties
Pinal 63.2% Pima 61.8% Maricopa 59.4% Coconino 52.6%
Arkansas 56.8%

County pages for Arkansas arrive with the full CPSC county pipeline. See the state page →

California 59.4%10 counties
Los Angeles 64.9% Riverside 63.1% Fresno 62.4% San Bernardino 61.8% San Diego 61.2% San Joaquin 60.8% Sacramento 59.4% Santa Clara 58.7% Orange 57.4% Alameda 56.2%
Colorado 57.8%

County pages for Colorado arrive with the full CPSC county pipeline. See the state page →

Connecticut 56.6%

County pages for Connecticut arrive with the full CPSC county pipeline. See the state page →

Delaware 60%

County pages for Delaware arrive with the full CPSC county pipeline. See the state page →

District of Columbia 49%

County pages for District of Columbia arrive with the full CPSC county pipeline. See the state page →

Florida 64.7%10 counties
Miami-Dade 74.2% Citrus 72.1% Broward 71.8% Palm Beach 70.1% Brevard 68.4% Lake 67.8% Hillsborough 66.4% Orange 64.8% Duval 62.3% Alachua 54.2%
Georgia 59.5%6 counties
Towns 66.4% Richmond 58.2% DeKalb 56.4% Fulton 54.2% Cobb 51.8% Gwinnett 49.6%
Hawaii 41.8%

County pages for Hawaii arrive with the full CPSC county pipeline. See the state page →

Idaho 49.7%

County pages for Idaho arrive with the full CPSC county pipeline. See the state page →

Illinois 55%6 counties
Winnebago 52.4% Cook 51.4% Will 50.2% DuPage 48.6% Kane 47.8% LaSalle 43.2%
Indiana 60.3%

County pages for Indiana arrive with the full CPSC county pipeline. See the state page →

Iowa 50.3%

County pages for Iowa arrive with the full CPSC county pipeline. See the state page →

Kansas 51.3%

County pages for Kansas arrive with the full CPSC county pipeline. See the state page →

Kentucky 61.4%

County pages for Kentucky arrive with the full CPSC county pipeline. See the state page →

Louisiana 59.6%

County pages for Louisiana arrive with the full CPSC county pipeline. See the state page →

Maine 44.7%

County pages for Maine arrive with the full CPSC county pipeline. See the state page →

Maryland 60.4%

County pages for Maryland arrive with the full CPSC county pipeline. See the state page →

Massachusetts 55.4%

County pages for Massachusetts arrive with the full CPSC county pipeline. See the state page →

Michigan 57.4%5 counties
Wayne 57.4% Macomb 55.8% Oakland 53.4% Kent 51.8% Benzie 46.2%
Minnesota 54.5%

County pages for Minnesota arrive with the full CPSC county pipeline. See the state page →

Mississippi 58%

County pages for Mississippi arrive with the full CPSC county pipeline. See the state page →

Missouri 57.9%

County pages for Missouri arrive with the full CPSC county pipeline. See the state page →

Montana 48.5%

County pages for Montana arrive with the full CPSC county pipeline. See the state page →

Nebraska 51.2%

County pages for Nebraska arrive with the full CPSC county pipeline. See the state page →

Nevada 61%

County pages for Nevada arrive with the full CPSC county pipeline. See the state page →

New Hampshire 50.3%

County pages for New Hampshire arrive with the full CPSC county pipeline. See the state page →

New Jersey 57.4%

County pages for New Jersey arrive with the full CPSC county pipeline. See the state page →

New Mexico 60.6%

County pages for New Mexico arrive with the full CPSC county pipeline. See the state page →

New York 55.1%7 counties
Bronx 63.4% Queens 61.2% Kings 58.4% Nassau 57.8% New York 56.9% Suffolk 55.4% Monroe 52.8%
North Carolina 57.9%6 counties
Guilford 54.6% Forsyth 53.2% Mecklenburg 52.8% Durham 51.8% Wake 50.4% Greene 44.8%
North Dakota 54.5%

County pages for North Dakota arrive with the full CPSC county pipeline. See the state page →

Ohio 58.6%6 counties
Lucas 58.1% Cuyahoga 57.2% Hamilton 56.4% Summit 55.6% Franklin 54.8% Ashtabula 47.8%
Oklahoma 51.8%

County pages for Oklahoma arrive with the full CPSC county pipeline. See the state page →

Oregon 54.4%

County pages for Oregon arrive with the full CPSC county pipeline. See the state page →

Pennsylvania 57.8%8 counties
Philadelphia 62.1% Allegheny 58.4% Beaver 56.8% Montgomery 54.8% Bucks 52.6% Chester 51.2% Erie 49.8% Crawford 44.2%
Puerto Rico 82.1%

County pages for Puerto Rico arrive with the full CPSC county pipeline. See the state page →

Rhode Island 54.7%

County pages for Rhode Island arrive with the full CPSC county pipeline. See the state page →

South Carolina 59.6%

County pages for South Carolina arrive with the full CPSC county pipeline. See the state page →

South Dakota 50.9%

County pages for South Dakota arrive with the full CPSC county pipeline. See the state page →

Tennessee 60.5%

County pages for Tennessee arrive with the full CPSC county pipeline. See the state page →

Texas 54.9%8 counties
El Paso 62.8% Bexar 59.1% Galveston 58.4% Harris 57.8% Lubbock 56.8% Dallas 55.4% Tarrant 53.2% Travis 48.4%
Utah 53%

County pages for Utah arrive with the full CPSC county pipeline. See the state page →

Vermont 36.8%

County pages for Vermont arrive with the full CPSC county pipeline. See the state page →

Virginia 58.3%

County pages for Virginia arrive with the full CPSC county pipeline. See the state page →

Washington 56.1%

County pages for Washington arrive with the full CPSC county pipeline. See the state page →

West Virginia 56.2%

County pages for West Virginia arrive with the full CPSC county pipeline. See the state page →

Wisconsin 54.3%

County pages for Wisconsin arrive with the full CPSC county pipeline. See the state page →

Wyoming 43.2%

County pages for Wyoming arrive with the full CPSC county pipeline. See the state page →

This cycle's headline numbers

live static extract curated modeled What these labels mean →

Has Medicare Advantage passed half of Medicare?
static extract
50.8%
Plan year 2026 · +1.2 pts YoY · pure-MA basis
See the trend →
Which counties are gaining MA share fastest?
static extract
+1.35 pts
Miami-Dade, FL → 74.2% · data through Plan year 2026, with 2023–2026 penetration history
Explore counties →
Which carriers are losing stars?
static extract
3.4★
Humana, -0.4 since 2023 · 2026 Star Ratings (published Oct 2025)
See star movement →
What are IRA-negotiated prices saving?
static extract
−$9,141
per fill, Stelara (ustekinumab) · CY2026 MFP, effective Jan 2026
See the drug list →
New in the data CMS Medicare Monthly Enrollment — February 2026 ingested June 15, 2026. Notable: national MA+other share at 57.8%; Puerto Rico leads states at 82.1%. Read the release briefing →

Start from your task

Jump straight to the answer set that matches the work in front of you.

Strategy & corp devI'm evaluating a market entryCounty momentum + penetration runway, CSV-ready Payer strategyI'm benchmarking plansStar trajectories, measure erosion, exit signals Market accessI'm sizing drug-spend impactIRA negotiated prices and the OOP-cap shift Finance & diligenceI'm prepping a board deckThe citable national picture with basis notes Brokers & field salesI'm planning AEP territoriesContestable members, runway class, battlecards, CSV-ready AnalystsI need the underlying tablesVersioned CSV downloads with the same vintages as the charts

Get the 5 biggest shifts in Medicare data, monthly

One email per CMS release cycle: what changed in the new data, the five largest market shifts, and links to the updated answers. No product news, no filler.

No spam, unsubscribe anytime. See the privacy policy. Latest issue: Data release briefings →

Built to be cited

Most Medicare stats you'll find online are undated and unsourced. Everything here is engineered so you can put it in front of a client, a CFO, or a diligence committee.

Named sources & vintages

Every figure names its CMS file and states its data vintage — Monthly Enrollment, CPSC, Star Ratings, Part D parameters. No undated charts, anywhere.

Provenance on every chart

An expandable panel under each figure: method, basis notes, limitations, and a link to the exact CMS source file.

Honest status labels

Live pulls, static extracts, curated notes, and modeled series are labeled apart — so you know exactly what kind of number you're quoting.

So what / Now what

Each answer ends with what the number means and the concrete next moves — pre-formatted citation included, ready for your deck.

Monthly enrollment ingests · annual stars (Oct) and Part D parameters (Apr) · Methodology, source registry & limitations · Who runs this →