Medicare contract · plan years 2026 and 2027CMS landscape and crosswalk
Health Care Service Corporation (H0107)
H0107Contract
A company of Health Care Service Corporation, sold as Blue Cross and Blue Shield of Montana
0 plans in 2027 (6 in 2026) · 13,041 members in September 2026
Health Care Service Corporation is the Health Care Service Corporation company that holds Medicare contract H0107, sold as Blue Cross and Blue Shield of Montana. In 2027 it offers 0 plans (6 in 2026); 6 of its 2026 plans are not offered in 2027. 13,041 people were in its plans in September 2026.
Which of its plans end?
| 2026 plan | Members, Sept. 2026 | Counties in 2026 |
|---|---|---|
| Blue Cross Medicare Advantage ClassicH0107-003 | 7,201 | 39 |
| Blue Cross Medicare Advantage Choice PlusH0107-005 | 2,200 | 21 |
| Blue Cross Medicare Advantage OptimumH0107-004 | 1,858 | 39 |
| Blue Cross Medicare Advantage Dental PremierH0107-007 | 894 | 21 |
| Blue Cross Medicare Advantage Health ChoiceH0107-010 | 827 | 21 |
| Blue Cross Medicare Advantage ProtectH0107-011 | 61 | 21 |
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?
H0107 also holds 21 group plans offered through former employers and unions, with 88,526 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 |
|---|---|---|---|
| H0107-801 | Blue Cross Group Medicare Advantage Plan | 5,566 | renews |
| H0107-802 | Blue Cross Group Medicare Advantage Plan | 23,062 | renews |
| H0107-803 | Blue Cross Group Medicare Advantage Plan | 52,414 | renews |
| H0107-804 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | not offered in 2027 |
| H0107-805 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | not offered in 2027 |
| H0107-806 | Blue Cross Group Medicare Advantage Plan | 1,713 | renews |
| H0107-807 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | not offered in 2027 |
| H0107-808 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | not offered in 2027 |
| H0107-809 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | not offered in 2027 |
| H0107-810 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | not offered in 2027 |
Show the other 11 group plans
| Plan ID | Plan name | Members, Sept. 2026 | 2027 |
|---|---|---|---|
| H0107-811 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | not offered in 2027 |
| H0107-812 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | not offered in 2027 |
| H0107-813 | Blue Cross Group Medicare Advantage Plan | 517 | renews |
| H0107-814 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | not offered in 2027 |
| H0107-815 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | not offered in 2027 |
| H0107-816 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | not offered in 2027 |
| H0107-817 | Blue Cross Group Medicare Advantage Plan | 5,254 | renews |
| H0107-818 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | not offered in 2027 |
| H0107-819 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | not offered in 2027 |
| H0107-820 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | not offered in 2027 |
| H0107-821 | Blue Cross Group Medicare Advantage Plan | fewer than 11 | 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 3.5 of 5 (health plan 3.5 of 5, drug plan 3.5 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 |
| Diabetes Care – Eye Exam | 2 |
| Controlling High Blood Pressure | 2 |
| Reducing the Risk of Falling | 2 |
| Highest-rated measures | Stars |
|---|---|
| MPF Price Accuracy | 5 |
| Members Choosing to Leave the Plan | 5 |
| Complaints about the Drug Plan | 5 |
| Members Choosing to Leave the Plan | 5 |
Source: CMS Part C and D Star Ratings data tables, 2026 (October 2025).
What else should you check?
- All Blue Cross and Blue Shield of Montana 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