Medicare contract · plan years 2026 and 2027CMS landscape and crosswalk
Kaiser Foundation Health Plan of Washington (H5050)
H5050Contract
A company of Kaiser Foundation Health Plan, Inc., sold as Kaiser Permanente
14 plans in 2027 (17 in 2026) · 69,268 members in September 2026
Kaiser Foundation Health Plan of Washington is the Kaiser Foundation Health Plan, Inc. company that holds Medicare contract H5050, sold as Kaiser Permanente. In 2027 it offers 14 plans (17 in 2026); 3 of its 2026 plans are not offered in 2027. 69,268 people were in its plans in September 2026.
What plans does H5050 offer for 2027?
Source: CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision); CMS plan crosswalk from 2026 to 2027 (Oct. 1, 2026).
Which of its plans end?
| 2026 plan | Members, Sept. 2026 | Counties in 2026 |
|---|---|---|
| Kaiser Permanente Medicare Advantage HarborH5050-017 | 5,338 | 3 |
| Kaiser Permanente Medicare Advantage AnchorH5050-023 | 3,293 | 2 |
| Kaiser Permanente Medicare Advantage KeyH5050-022 | 839 | 1 |
Source: CMS plan crosswalk from 2026 to 2027 (Oct. 1, 2026); CMS monthly enrollment by plan and by county, September 2026 (CMS hides counts under 11).
Which employer and union group plans does it hold?
H5050 also holds 2 group plans offered through former employers and unions, with 29,795 members in September 2026 (plans with fewer than 11 not counted). They are not sold to individuals, so the landscape files list no premiums or benefits for them; the employer or union sends their 2027 terms.
| Plan ID | Plan name | Members, Sept. 2026 | 2027 |
|---|---|---|---|
| H5050-801 | Kaiser Permanente Medicare Advantage Group [AB] | fewer than 11 | renews |
| H5050-802 | Kaiser Permanente Medicare Advantage Group [ABD] | 29,795 | renews |
Source: CMS monthly enrollment by plan and by county, September 2026 (CMS hides counts under 11); CMS plan crosswalk from 2026 to 2027 (Oct. 1, 2026).
How did CMS rate it for 2026?
The overall rating is 4 of 5 (health plan 3.5 of 5, drug plan 5 of 5). Of its 41 rated measures, the lowest and the highest:
| Lowest-rated measures | Stars |
|---|---|
| Improving Bladder Control | 1 |
| Getting Appointments and Care Quickly | 1 |
| Customer Service | 1 |
| Rating of Health Plan | 2 |
| Highest-rated measures | Stars |
|---|---|
| MTM Program Completion Rate for CMR | 5 |
| Medication Adherence for Cholesterol (Statins) | 5 |
| Medication Adherence for Hypertension (RAS antagonists) | 5 |
| Medication Adherence for Diabetes Medications | 5 |
Source: CMS Part C and D Star Ratings data tables, 2026 (October 2025).
What else should you check?
- All Kaiser Permanente plansEvery contract of the brand
- Star ratings of every contractThe 2026 ratings, and 2027 when CMS publishes them
- Find a plan by its IDFrom the card or a letter