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PlainMedicare

Plan year 2026 · coverage ends Dec. 31, 2026CMS crosswalk of Oct. 1, 2026

HealthSun MediSun Full Dual Plus is not offered under this ID in 2027

H5431Contract025Plan

HMO D-SNP · served 1 county in Florida in 2026

Run by HealthSun Health Plans, Inc. (contract H5431), sold as HealthSun Health Plans, Inc., owned by Elevance Health, Inc.

CMS crosswalk: members move into H5431-026

Folds into H5431-026

HealthSun MediSun Full Dual Plus (H5431-025) is not offered under this ID in 2027: the CMS plan crosswalk of October 1, 2026 moves its members into HealthSun MediSun Full Dual Extra (H5431-026), which is sold in every county it served. 624 people were enrolled in it in September 2026; they can also choose another plan during open enrollment, October 15 to December 7, 2026.

What changes for its members in HealthSun MediSun Full Dual Extra?

For its members: this plan's 2026 amounts beside HealthSun MediSun Full Dual Extra (H5431-026) in 2027. The changed lines are marked and come first.
What you pay or get20262027Change
Plan nameHealthSun MediSun Full Dual PlusHealthSun MediSun Full Dual Extrarenamed
Drug deductible$0$700up $700
Over-the-counter items, yearly$1,860 a year$1,344 a yeardown $516
Counties served13up 2
Drug tier 5, specialty tier33% of the cost25% of the costdown 8 points
18 lines do not change
Monthly premium$0$0no change
In-network out-of-pocket limit$3,450$3,450no change
Part B premium reduction, monthlynonenoneno change
Primary care visit$0 copay$0 copayno change
Specialist visit$0 copay$0 copayno change
Emergency room$0 copay$0 copayno change
Medical deductible, in networknonenoneno change
Hospital stay, in network$0 a stay$0 a stayno change
Skilled nursing facility, in network$0 a day for days 1–100$0 a day for days 1–100no change
Ground ambulance, in network$0 copay$0 copayno change
Comprehensive dental, yearly limitnot offerednot offeredno change
Eyewear, yearly limit$400 a year$400 a yearno change
Hearing aids, yearly limit for both ears$2,000 a year$2,000 a yearno change
Drug tier 1, preferred generic$0$0no change
Drug tier 2, generic$0$0no change
Drug tier 3, preferred brand$5$5no change
Drug tier 4, non-preferred drug$50$50no change
Drug tier 6, supplemental drugs$0$0no change

Source: CMS plan crosswalk from 2026 to 2027 (Oct. 1, 2026); CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision); CMS plan benefit package files, 2027 and 2026. Your plan's Annual Notice of Change is the letter that confirms your 2027 plan; confirm on Medicare Plan Finder.

What can members do, and by when?

If you do nothing
You are moved into HealthSun MediSun Full Dual Extra on January 1, 2027.
October 15 to December 7, 2026
Open enrollment: choose another Medicare Advantage plan, or Original Medicare with a drug plan, instead.
January 1 to March 31, 2027
Medicare Advantage open enrollment: switch once to another Medicare Advantage plan or to Original Medicare.
If you have Medicaid or Extra Help
You can switch to a different drug plan, or leave a Medicare Advantage plan for Original Medicare with a drug plan, once a calendar month; the change starts the first day of the next month.

Source: Medicare.gov, “Special enrollment periods” and “Joining a plan” (read Oct. 7, 2026).

Where did its members live?

Where its members lived in September 2026; each county and state page lists the 2027 plans sold there.

All 1 county, most members first; CMS hides counts under 11 per county, so the counties add up to a little less than the plan's total
CountyMembers, Sept. 2026For 2027
Palm Beach, FL620moves into H5431-026

Source: CMS monthly enrollment by plan and by county, September 2026 (CMS hides counts under 11).

What else should you check?