That’s a good and creative idea. In our case, however, we receive medical bills in thousands of different formats depending on the medical provider, so there is not a one-size-fits-all way to section out the HIPAA elements from all these bill formats.
We tested some other tools, but by far, GPT-4 gave us the best results, even if we feed unstructured data extracted via tesseract. Being able to use the vision API for medical bills would improve our accuracy even more!