Mass General Brigham Health Plan Transparency Rating

Recalculated monthly from live CMS machine-readable files — last verified September 5, 2026.

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88.5
B
Strong

Scores better than 36% of payers tracked in this cycle.

Licensed in Massachusetts.

Score Breakdown

Accessibility
the share of this payer's rate files that actually completed download this cycle
88.5
Parseability
the share of downloaded files that successfully parsed into structured rate data
100
Domain Stability
how many distinct hosting domains this payer's files are spread across - fewer is more stable
60
Freshness
how recently this payer's table-of-contents file was last parsed successfully
100

Trend

First tracked: Sep 2026. Trend history builds as monthly snapshots accumulate.

Why This Score

Mass General Brigham Health Plan’s 88.5 (B) rating this cycle is held back primarily by Domain Stability, scored 60/100 — how many distinct hosting domains this payer's files are spread across - fewer is more stable. Accessibility (88.5/100 — the share of this payer's rate files that actually completed download this cycle) is a secondary factor.

See other payers in: Massachusetts.

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