What is the most accurate spreadsheet methodology for forecasting lifetime Medicare premium costs factoring in historical IRMAA bracket creep
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What is the most accurate spreadsheet methodology for forecasting lifetime Medicare premium costs factoring in historical IRMAA bracket creep
6 real searches · 1 real-search pass
CMS Medicare 2026 IRMAA brackets Part B Part D premiums official 2026Google ↗
OBSERVEDConsequence
SSA IRMAA Medicare income-related monthly adjustment amounts 2026 brackets two year lookback officialGoogle ↗
OBSERVEDConsequence
historical Medicare IRMAA income thresholds 2007 2025 bracket inflation indexing methodologyGoogle ↗
OBSERVEDReason
CMS historical Medicare Part B premiums IRMAA income brackets 2025 2026 officialGoogle ↗
OBSERVEDShort fact
Medicare IRMAA thresholds inflation indexing historical bracket creep Social Security two year lookback officialGoogle ↗
OBSERVEDReason
Medicare Part D IRMAA surcharge 2026 income brackets CMSGoogle ↗
OBSERVEDReason
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (6)
Classes come from the query-classifier (a local Laya model). 6 of 6 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT6 real searches · gpt-6
CMS Medicare 2026 IRMAA brackets Part B Part D premiums official 2026 Google ↗
SSA IRMAA Medicare income-related monthly adjustment amounts 2026 brackets two year lookback official Google ↗
historical Medicare IRMAA income thresholds 2007 2025 bracket inflation indexing methodology Google ↗
CMS historical Medicare Part B premiums IRMAA income brackets 2025 2026 official Google ↗
Medicare IRMAA thresholds inflation indexing historical bracket creep Social Security two year lookback official Google ↗
Medicare Part D IRMAA surcharge 2026 income brackets CMS Google ↗
- Code of Federal Regulations § 418.1105 · ssa.gov
- Medicare’s Income-Related Premiums Under Current Law and Changes for 2019 · kff.org
- Social Security Act §1839 · ssa.gov
- Benefits Planner: Retirement | Medicare Premiums · ssa.gov
- SSA - POMS: HI 01101.020 - IRMAA Sliding Scale Tables · secure.ssa.gov
- SSA historical IRMAA sliding-scale tables · secure.ssa.gov
- SSA Handbook § 2504 · ssa.gov
- Medicare and You Handbook 2026 · medicare.gov
- 2026 Medicare Parts A & B Premiums and Deductibles · cms.gov
- SSA - POMS: HI 01101.031 - How IRMAA is Calculated and How IRMAA Affects the Total Medicare Premium · secure.ssa.gov
- CMS Medicare Trustees Report · cms.gov
- Medicare.gov · medicare.gov
Semantic map
Every query placed by meaning (EmbeddingGemma 2, 256-d). Shaded regions are topics, nearby points are near-paraphrases, and a circle's size is how often the query came back.
Colour
SimulatedReal search
Hover a query to see its counterpart · zoom with Ctrl/⌘ + scroll, a pinch, double-click or +
Queries
6 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
CMS Medicare 2026 IRMAA brackets Part B Part D premiums official 2026 OBSERVED | Google ↗ AI Mode ↗ | — | Consequence | — | — | 1x of 1 | |
SSA IRMAA Medicare income-related monthly adjustment amounts 2026 brackets two year lookback official OBSERVED | Google ↗ AI Mode ↗ | — | Consequence | — | — | 1x of 1 | |
historical Medicare IRMAA income thresholds 2007 2025 bracket inflation indexing methodology OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
CMS historical Medicare Part B premiums IRMAA income brackets 2025 2026 official OBSERVED | Google ↗ AI Mode ↗ | — | Short fact | — | — | 1x of 1 | |
Medicare IRMAA thresholds inflation indexing historical bracket creep Social Security two year lookback official OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
Medicare Part D IRMAA surcharge 2026 income brackets CMS OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 |