What we've learned navigating denials.
Tactics, denial-code playbooks, and the patterns we see across 50+ carriers. Honest, specific, no fluff.
- Press releaseSep 15, 2026
Independent Reviewers Overturned 72 Percent of California Insurance Denials in 2025; Fewer Than 1 Percent of Denials Are Appealed, Apellica Benchmark Finds
New reproducible tabulations of CMS insurer filings, 42,710 California independent medical reviews and state external-review reports: a nine-fold spread in denial rates between insurers under the same rules, 3.2 appeals per 1,000 denials, and the treatments reviewers reverse most and least.
- Press releaseMay 19, 2026
Apellica Releases 50-State External Review Index, Documents 4.7x Spread in Insurance-Appeal Outcomes
Connecticut overturns 80 percent of denied insurance appeals at independent review; West Virginia overturns 17 percent. Only 14 of 56 U.S. jurisdictions publish a current reversal rate; 42 do not. Apellica's open dataset documents the spread.
Why fewer than 1% of denied claims are ever appealed
The system runs on the bet that you'll give up. Here's how that bet got built, and why it works on almost everyone.
GLP-1 denials: what flips a Wegovy or Zepbound no
BMI thresholds, T2D pathways, formulary exceptions. The three angles that win most GLP-1 appeals, and the one that wins them faster.
What a strong appeal letter actually contains
Appeals aren't pleas. They're rebuttals. Five things every winning letter has, and the one phrase that does most of the work.