Here is the opinion in Saginaw Chippewa Indian Tribe v. Blue Cross Blue Shield of Michigan.

An excerpt:

The Saginaw Chippewa Indian Tribe and its Benefit Plan brought federal and common law claims against Blue Cross Blue Shield of Michigan (BCBSM or Blue Cross) for failing to fulfill its fiduciary duties in administering tribal health insurance plans. When we first encountered this dispute three years ago, we reversed the district court’s dismissal of the Tribe’s claims based on Blue Cross’s alleged failure to insist on “Medicare-like rates” for care authorized by the Tribe’s Contract Health Services1 program and provided to tribal members by Medicare-participating hospitals. On remand, the district court granted summary judgment to Blue Cross, concluding that the Tribe’s payments for qualified CHS care through the Blue Cross plans were not eligible for Medicare-like rates. The district court interpreted the relevant federal regulations as limiting the requirement of Medicare-like rates to payments for care that was authorized by CHS, provided to tribal members by Medicare- participating hospitals, and directly paid for with CHS funds. Based on the plain wording of the applicable regulations, we REVERSE and REMAND the case to the district court for further proceedings consistent with this opinion.

Briefs:

Lower court materials here.