Coral raises $12.5M to automate healthcare back offices with AI

New York startup Coral has closed a $12.5M Series A round. The money will go toward scaling an AI platform that takes over the most routine and resource-intensive part of medical administrative work. The system reads handwritten fax forms, processes requests for prior authorisation of procedures and registers new patients, all within five minutes and without involving a doctor or administrator.

It sounds like a marketing slogan, but there is a concrete technical problem behind it. American clinics still rely heavily on fax: insurers require paper forms for prior authorisation, the advance approval of expensive procedures. These forms are often filled out by hand, arrive illegible and need manual transcription. This is where hours of working time are lost every day.

Coral trained its AI to recognise such forms and extract structured data from them. The system then sends the request to the insurer on its own, tracks its status and records the response in the patient's medical record. In parallel, the same infrastructure handles intake: the first visit of a new patient, collecting medical history and insurance details. The whole cycle, which used to take an administrator 30-60 minutes, now completes automatically.

The product's main distinction is that it does not require clinics to change established processes. Faxes, phone calls and EHR systems stay in place. This is a deliberate choice. Most healthcare startups crash into the wall of adoption precisely because they demand staff retraining and a rebuild of IT infrastructure. Coral bet on a different approach: the system works on top of the existing chaos without first requiring it to be untangled.

This positioning let the startup build a customer base quickly. Less than a year after launch, Coral already generates several million dollars in revenue. The exact figure is not disclosed, but for an early-stage company it is a strong product-market fit signal. By the end of 2026, the company plans to quadruple.

Administrative burden is one of the main sources of burnout among medical staff in the US. According to the American Medical Association, doctors spend as much time on documentation as they do seeing patients. Clinics lose billions of dollars every year on manual data entry, phone calls for insurance approvals and paper bureaucracy. Prior authorisation is a classic example: the process is standardised and highly competitive, yet barely automated because it depends on outdated data-transfer formats.

Coral will use the $12.5M to expand its team, develop the product and enter new medical specialties. The company has not yet disclosed the names of the round's investors.

Coral's story is a working formula for healthcare startups: do not rewrite medicine from scratch, but target the most painful problem, administrative chaos. The principle of "don't change providers' processes" lowers the adoption barrier to a minimum and allows scaling without months of approvals from clinics' IT departments. If 4x growth materialises, Coral will become one of the notable players in medical AI back-office by year-end.