Google Cloud has started a preview of Gemini for healthcare, a version of its work agent for hospitals and health insurers in the United States. For now it is open only to customers of the company's Gemini Enterprise plans. It connects to the chart systems Epic and Oracle Health, to claims and eligibility systems and to Medicare's coverage rules. It can read an Epic chart but cannot write to it, so a doctor or nurse still makes every change.
A denial works only while fighting it is expensive
For some treatments, the insurer insists on approving them first. A doctor orders an MRI or an expensive drug, the hospital sends the insurer a packet of chart notes and forms, and the insurer says yes or no. When it says no, the hospital can appeal, and an appeal needs a trained person to pull the evidence from the chart, read the plan's policy and write the letter.
That labor is the whole defense the insurer has. In Medicare Advantage, the private plans many older Americans use, 11.5% of denied requests were appealed in 2024, and 80.7% of those appeals overturned the denial. Out of every 1,000 denials, about 115 were fought and about 93 won. The other 885 were never tested. Northwell's chief executive says his 400 appeals staff overturn more than nine in ten of the denials they fight, and he calls that a big labor cost.
Gemini for healthcare attacks that cost from two directions. Before a request goes out, it pulls the chart evidence into a packet and flags what is missing against the insurer's policy. After a denial, it drafts an appeal from the same record. If that cut an appeal from hours of a trained person's time to minutes of review, and hospitals filed appeals on half of their denials, even a 60% win rate would reverse about 300 denials per 1,000 instead of 93.
Insurers get the same tool
Drafting appeals with AI is not new. Epic already sells a denials appeals assistant, and health policy researchers already describe the whole contest as an arms race. What is different here is one agent that reads the chart, the plan rules and the eligibility data together, and that is offered to both sides at once. Highmark, Blue Cross Blue Shield of Massachusetts and Optum are in the launch group, and the insurer version checks incoming requests against medical policy before a reviewer sees them.
When one side's paperwork gets cheaper, the other side tends to answer. After hospitals started using AI note-takers, billing codes drifted toward the higher-paying levels, and insurers pay for that. So the insurers will not stand still while appeals get cheap.
My view is that the fight narrows rather than grows. A request that the hospital has checked against the insurer's policy, and the insurer then checks against the same policy, has nothing missing for either side to find. The denials that came from a missing form or a gap in the notes should mostly stop. What remains are cases where the insurer's policy says to try a cheaper drug first and the doctor disagrees. That is a real argument about medicine, it was always hiding behind the paperwork, and it is the one that needs a human on the patient's side.
What a patient can do before the hospital has it
Most hospitals will not have this for a long time, and the appeal rate shows what that means: most denied people never appeal. A person whose scan or drug is denied can ask the doctor's office for the denial letter and for the plan's written rule on that treatment. They can then give both to an AI assistant, with their name and member number removed, and ask where the letter's reason conflicts with the plan's own rule and what the doctor's letter should say. The doctor still has to sign the medical argument.
The denial letter states how long you have to appeal, so put that date in your calendar first. Everything else can be done in an evening.