Medicare contract · plan years 2026 and 2027CMS landscape and crosswalk
Summacare Inc. (H3660)
H3660Contract
A company of General Catalyst Group Management Holdings LP, sold as SummaCare Medicare Advantage Plans
6 plans in 2027 (7 in 2026) · 34,268 members in September 2026
Summacare Inc. is the General Catalyst Group Management Holdings LP company that holds Medicare contract H3660, sold as SummaCare Medicare Advantage Plans. In 2027 it offers 6 plans (7 in 2026); 1 of its 2026 plans is not offered in 2027. 34,268 people were in its plans in September 2026.
What plans does H3660 offer for 2027?
| Plan | Type | Monthly premium | Out-of-pocket limit | Area | For 2027 |
|---|---|---|---|---|---|
| SummaCare Medicare EmeraldH3660-028 | HMO-POS | $159 | $3,000 | 15 counties | renews |
| SummaCare Medicare SapphireH3660-029 | HMO-POS | $85 | $3,800 | 31 counties | renews |
| SummaCare Medicare RubyH3660-044 | HMO | $55 | $4,200 | 25 counties | renews |
| SummaCare Medicare TopazH3660-050 | HMO | $17 | $4,650 | 25 counties | renews |
| SummaCare Medicare QuartzH3660-057 | HMO | $0 | $5,200 | 25 counties | renews |
| SummaCare Medicare AmberH3660-058 | HMO | $0 | $3,450 | 31 counties | renews |
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 |
|---|---|---|
| SummaCare Medicare GarnetH3660-053 | 3,386 | 16 |
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?
H3660 also holds 4 group plans offered through former employers and unions, with 338 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 |
|---|---|---|---|
| H3660-801 | SummaCare Medicare Employer Plan with Part D | 163 | renews |
| H3660-802 | SummaCare Medicare Employer Plan without Part D | fewer than 11 | not offered in 2027 |
| H3660-805 | SummaCare Medicare Employer Plan with Part D | 175 | renews |
| H3660-806 | SummaCare Medicare Employer Plan without Part D | fewer than 11 | not offered in 2027 |
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 4.5 of 5 (health plan 4 of 5, drug plan 4.5 of 5). Of its 42 rated measures, the lowest and the highest:
| Lowest-rated measures | Stars |
|---|---|
| Osteoporosis Management in Women who had a Fracture | 1 |
| Reducing the Risk of Falling | 1 |
| Plan All-Cause Readmissions | 2 |
| Improving or Maintaining Physical Health | 3 |
| Highest-rated measures | Stars |
|---|---|
| Getting Needed Prescription Drugs | 5 |
| Rating of Drug Plan | 5 |
| Members Choosing to Leave the Plan | 5 |
| Complaints about the Drug Plan | 5 |
Source: CMS Part C and D Star Ratings data tables, 2026 (October 2025).
What else should you check?
- All SummaCare Medicare Advantage Plans 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