How many Medicare Advantage members in Polk County must pick a new plan for 2027?

15,061 of 117,137 members (12.9%): their plan is not sold in the county for 2027 according to the CMS crosswalk and Landscape. Florida as a whole: 11.4%; the nation: 10.6%.

Which plan in Polk County ends with the most members?

Humana Full Access Giveback H5216-393 (PPO) (H5216-393, Humana Inc.): 7,175 members in September 2026, terminated; the company offers them a new or renumbered plan of the same type in the county.

Which company ended the most plans in Polk County for 2027?

Humana Inc.: 12,399 of its 54,882 members in the county (22.6%), 6 of its 33 plans.

What share of Polk County's Medicare eligibles are in Medicare Advantage?

69.4% in September 2026: 127,412 of 183,665 eligibles, from the CMS state-county penetration file.

How are Polk County's members rated for 2027?

91.3% of members are in contracts rated 4 stars or more for 2027 (82.5% the year before); the member-weighted average star is 4.07 over 39 rated contracts.

How does 2027 compare with 2026 in Polk County?

1,996 members (1.8%) had to pick a new plan for 2026; for 2027 it is 15,061 (12.9%), a change of +13,065 members.

2027 open enrollment. 3.15 million people must pick a new Medicare Advantage plan. See every plan and county, free.3.15M must pick a new plan.

Look up your countyYour county →

Vlada

Vlada / Medicare Advantage / Florida / Polk County

Medicare Advantage plan exits 2027 in Polk County, FL

15,061 of the 117,137 Medicare Advantage members in Polk County (12.9%) are in a plan that is not sold in the county for 2027: 15 of the 116 plans sold there in September 2026 end, from the CMS 2027 Landscape and crosswalk. Florida: 11.4%; the nation: 10.6%.

Period: plan year 2027 against September 2026 members · Updated 2026-10-20 · Next: CMS January 2027 enrollment (February 2027): where the members landed

members, Sept 2026: 117,137; members, Sept 2026
must pick for 2027: 15,061; must pick for 2027
share of members: 12.9%; share of members
plans end: 15 of 116; plans end

Medicare Advantage members in Polk County, 2015 to 2026

MA enrollment in September each year, with MA penetration (members over Medicare eligibles) at the top of each bar, from the CMS state-county penetration file. Navy: the last two years. 110 plans are listed for the county for 2027 against 126 for 2026.

The plans that end for 2027

Every plan sold in Polk County in September 2026 with members whose plan is not sold there for 2027: how it went (terminated, or its service area reduced so it continues elsewhere), the members the same company offers a new or renumbered plan of the same type, and the members whose company sells nothing in the county next year.

Plan	Company	Type	Members	Terminated	Offered a new or renumbered plan	Company gone
Humana Full Access Giveback H5216-393 (PPO) H5216-393	Humana Inc.	Regular PPO	7,175	7,175	7,175	0
Humana Full Access Giveback H7617-111 (PPO) H7617-111	Humana Inc.	Regular PPO	3,075	3,075	3,075	0
Humanachoice Florida H7617-109 (PPO) H7617-109	Humana Inc.	Regular PPO	1,350	1,350	1,350	0
Simply More (HMO) H5471-071	Elevance Health, Inc.	Regular HMO	793	793	0	0
Simply Level (HMO C-SNP) H5471-070	Elevance Health, Inc.	CSNP HMO	771	771	0	0
Healthspring Preferred Savings (HMO) H5410-026	Health Care Service Corporation	Regular HMO	557	557	0	0
Humana Direct Choice Giveback (PPO) H7617-112	Humana Inc.	Regular PPO	422	422	422	0
Humana Direct Choice Giveback (PPO) H5216-452	Humana Inc.	Regular PPO	357	357	357	0
Simply Extra Platinum (HMO) H5471-117	Elevance Health, Inc.	Regular HMO	221	221	0	0
Simply Level Platinum (HMO C-SNP) H5471-119	Elevance Health, Inc.	CSNP HMO	215	215	0	0
Health First Emerald Plus H1099-024 (HMO) H1099-024	Health First Shared Services, Inc.	Regular HMO	39	39	0	39
Wellcare Patriot Giveback (HMO) H1032-239	Centene Corporation	Regular HMO	28	28	0	0
Drselect-cfl (HMO) H4140-016	DOCTORS HEALTHCARE PLANS, INC.	Regular HMO	21	21	21	0
Humana Usaa Honor Giveback (PPO) H5216-467	Humana Inc.	Regular PPO	20	20	20	0
Health First Complete Care H1099-023 (HMO) H1099-023	Health First Shared Services, Inc.	Regular HMO	17	17	0	17
15 plans			15,061	15,061	12,420	56

Download this table (CSV, CC BY 4.0) · cells under 11 members are suppressed by CMS and count as zero, so every count is a floor.

By company in Polk County

Company	Members, Sept 2026	Plans	Plans ending	Must pick	Share of own members	Offered a new or renumbered plan	Company gone
Humana Inc.	54,882	33	6	12,399	22.6%	12,399	0
Elevance Health, Inc.	13,496	20	4	2,000	14.8%	0	0
Health Care Service Corporation	1,110	4	1	557	50.2%	0	0
Health First Shared Services, Inc.	56	2	2	56	100.0%	0	56
Centene Corporation	2,549	6	1	28	1.1%	0	0
DOCTORS HEALTHCARE PLANS, INC.	21	1	1	21	100.0%	21	0
UnitedHealth Group, Inc.	28,494	15	0	0	0.0%	0	0
Devoted Health, Inc.	5,417	9	0	0	0.0%	0	0
CVS Health Corporation	3,849	10	0	0	0.0%	0	0
BayCare Health System, Inc.	3,768	3	0	0	0.0%	0	0
Guidewell Mutual Holding Corporation	2,861	4	0	0	0.0%	0	0
Athena Healthcare Holdings, LLC	325	4	0	0	0.0%	0	0
Ultimate Healthcare Holdings, LLC	290	4	0	0	0.0%	0	0
Longevity Health Founders, LLC	19	1	0	0	0.0%	0	0

Polk County against Florida and the nation

Measure	County	Florida	United States
Must pick for 2027, share of members	12.9%	11.4%	10.6%
Must pick for 2026	1.8%		10.1%
Must pick for 2025, members	3,949 of 108,391
Must pick for 2026, members	1,996 of 112,525
Must pick for 2027, members	15,061 of 117,137

State and national figures: the Florida hub and the national report.

Star Ratings 2027 in Polk County

Measure	2027	2026	Change
Members in contracts rated 4+ stars	91.3%	82.5%	+8.8 pts
Member-weighted average star	4.07	4.27	-0.20
Rated contracts with members here	39	37

Members by star, 2027: 5.0: 266 · 4.5: 31,517 · 4.0: 83,864 · 3.5: 7,630 · 3.0: 3,316 · 2.5: 12; 0 in unrated contracts. Each contract's 2027 overall star (CMS, released 2026-10-08) weighted by its 2026-09 members in the county, individual and group; 2026 by 2025-09 members.

Sources

CMS Medicare Advantage/Part D Landscape, plan year 2027: landscape_cy2027-landscape-202609-1.zip (CMS, September 2026); CMS plan crosswalk CY2027.
CMS monthly enrollment by contract, plan and county, 2026-09 (and the two Septembers before, for the series).
CMS MA state-county penetration file, September of each year (eligibles, enrollment, penetration).
CMS Star Ratings 2027, released 2026-10-08. Page object written 2026-10-20.

Receipts: athena(table=medicare_semantic.exits_cells_county_2027_v1, block=plans) 042eb472aa7d…; athena(table=medicare_semantic.exits_cells_county_2025_v1, medicare_semantic.exits_cells_county_2026_v1, medicare_semantic.exits_cells_county_2027_v1, block=series) ee9fd56a8632…; athena(table=medicare_semantic.ma_spine_county_market_v20261012b, block=market) e6c1b5ce62c0…; athena(table=medicare_semantic.ma_spine_contract_stars_v20261012b, weights=medicare_semantic.ma_spine_enroll_plan_county_v20261012a, block=stars) c39711c388e0…. Suppressed cells count as zero in every count.

Cite: Vlada Health (2026). Medicare Advantage plan exits 2027 in Polk County, FL. https://www.vladahealth.com/medicare-advantage/fl/polk. Data: CC BY 4.0.

Method

Population: members of individual Medicare Advantage plans (H and R contracts, plans 001 to 799, special needs plans included; employer group, Cost, MMP and PACE excluded) in the county in September 2026.
Must pick: the CMS crosswalk names no successor plan sold in the county for 2027; members CMS moves to a successor in the county are not counted.
Terminated: the plan is gone from every county. Service area reduced: the plan continues elsewhere but not here. Offered a new or renumbered plan: the same company sells, in this county, the same name under a new number or a new plan of the same HMO or PPO and special needs type. Company gone: no plan of any type from that company in the county.
Stars: each contract's overall star weighted by its September members in the county; unrated contracts counted apart, never as zero stars. Penetration: the CMS file's own eligibles and MA enrollment.
Suppression: CMS hides cells under 11 members; they count as zero, so every count is a floor and every share is not.

The full method and the national tables: How we counted, and how to check it.

Questions

How many Medicare Advantage members in Polk County must pick a new plan for 2027?: 15,061 of 117,137 members (12.9%): their plan is not sold in the county for 2027 according to the CMS crosswalk and Landscape. Florida as a whole: 11.4%; the nation: 10.6%.
Which plan in Polk County ends with the most members?: Humana Full Access Giveback H5216-393 (PPO) (H5216-393, Humana Inc.): 7,175 members in September 2026, terminated; the company offers them a new or renumbered plan of the same type in the county.
Which company ended the most plans in Polk County for 2027?: Humana Inc.: 12,399 of its 54,882 members in the county (22.6%), 6 of its 33 plans.
What share of Polk County's Medicare eligibles are in Medicare Advantage?: 69.4% in September 2026: 127,412 of 183,665 eligibles, from the CMS state-county penetration file.
How are Polk County's members rated for 2027?: 91.3% of members are in contracts rated 4 stars or more for 2027 (82.5% the year before); the member-weighted average star is 4.07 over 39 rated contracts.
How does 2027 compare with 2026 in Polk County?: 1,996 members (1.8%) had to pick a new plan for 2026; for 2027 it is 15,061 (12.9%), a change of +13,065 members.

Ask this in Claude or ChatGPT

The free Vlada connector answers it from the same files, with the source and a response hash. Install in one minute.

Use Vlada. In Polk County, Florida, which Medicare Advantage plans are not sold for 2027, how many members are in each, and what did 2026 look like? Give me a table with the source file, the data vintage and the response hash.

Behind it: get_county_view (state FL, county Polk) and get_landscape_exits (group_by county).