Population Health Risk Tiers for Medicare Advantage
Every Medicare Advantage plan is sitting on the same problem: you have a member population, a finite outreach budget, and no way to visit everyone. So you stratify.
Here's the shape it usually takes — four bands, bottom to top:
Stable (~60%) — low RAF, low touch. Annual wellness visit, keep the chart current.
Rising-Risk (~25%) — the band that matters. Close documentation and lab gaps here.
High (~12%) — active care management, complex conditions already coded.
Catastrophic (~3%) — intensive case management, highest cost per member.
The instinct is to pour resources into the top of the pyramid, because that's where the spend is. But the top of the pyramid is already known — those members are documented, managed, and captured. The biggest ROI usually hides in the rising-risk band, where conditions exist but haven't been documented to specificity, and where clinical intervention still changes the trajectory.
That's the whole argument for stratification: it isn't a reporting exercise, it's a routing decision. Score each member's risk, sort them into tiers, and direct outreach where it changes both outcomes and RAF accuracy.
The workflow underneath it is three steps — Identify → Validate → Capture. Identify the suspect condition. Validate it against the chart. Capture it with supporting documentation. Skip the middle step and you've built a compliance problem instead of a risk model.
→ Full approach: population health risk modeling and stratification
→ Operational walkthrough: Population Health Risk Stratification for MA Plans
All percentages and RAF values shown are synthetic and illustrative only.
VBC Risk Analytics. Educational only — not coding, billing, or clinical advice; verify against the current CMS Rate Announcement. Synthetic data only.