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

Aetna Medicare Signature is not offered under this ID in 2027

H3288Contract021Plan

PPO · served 4 counties in Oklahoma in 2026

Run by Aetna Health and Life Insurance Company (contract H3288), sold as Aetna Medicare, owned by CVS Health Corporation

CMS crosswalk: members move into H3288-020

Folds into H3288-020

Aetna Medicare Signature (H3288-021) is not offered under this ID in 2027: the CMS plan crosswalk of October 1, 2026 moves its members into Aetna Medicare Signature (H3288-020), which is sold in every county it served. 450 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 Aetna Medicare Signature?

For its members: this plan's 2026 amounts beside Aetna Medicare Signature (H3288-020) in 2027. The changed lines are marked and come first.
What you pay or get	2026	2027	Change
In-network out-of-pocket limit	$6,750	$7,150	up $400
Drug deductible	$300	$700	up $400
Hospital stay, in network	$430 a day for days 1–6, then $0 a day for days 7–90	$445 a day for days 1–6, then $0 a day for days 7–90	up $75for a 5-day stay
Skilled nursing facility, in network	$10 a day for days 1–20, then $218 a day for days 21–100	$10 a day for days 1–20, then $185 a day for days 21–100	down $330for a 30-day stay
Comprehensive dental, yearly limit	$1,000 a year	$500 a year	down $500
Eyewear, yearly limit	$125 a year	$100 a year	down $25
Over-the-counter items, yearly	$120 a year	$60 a year	down $60
Counties served	4	51	up 47
Drug tier 1, preferred generic	$2	$5	up $3
Drug tier 3, preferred brand	25% of the cost	17% of the cost	down 8 points
Drug tier 4, non-preferred drug	26% of the cost	28% of the cost	up 2 points
Drug tier 5, specialty tier	29% of the cost	25% of the cost	down 4 points
9 lines do not change
Monthly premium	$0	$0	no change
Part B premium reduction, monthly	none	none	no change
Primary care visit	$0 copay	$0 copay	no change
Specialist visit	$0 copay	$0 copay	no change
Emergency room	$130 copay	$130 copay	no change
Medical deductible, in network	none	none	no change
Ground ambulance, in network	$340 copay	$340 copay	no change
Hearing aids, yearly limit for both ears	$500 a year	$500 a year	no change
Drug tier 2, generic	$12	$12	no 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 Aetna Medicare Signature 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.

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 4 counties, most members first; CMS hides counts under 11 per county, so the counties add up to a little less than the plan's total
County	Members, Sept. 2026	For 2027
Tulsa, OK	290	moves into H3288-020
Creek, OK	61	moves into H3288-020
Wagoner, OK	48	moves into H3288-020
Okmulgee, OK	41	moves into H3288-020

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

What else should you check?

2027 plans in Tulsa, OKThe plans you can join instead
Aetna Medicare plans for 2027Plans the same company still offers
Every plan not offered in 2027764 Medicare Advantage and drug plans