Tesseract appears that it could be 100% accurate for detecting my Labs. I have done 6 labs and there are certain unique words that consistently OCR well and these could be used to determine the document type. As well, the
Health Number and Date of Service are 100% accurate.
Extra bonus: the Name has been 100% as well.
To pick out the document unique IDs: 1(877)849-3637, 3155 HARVESTER RD BURLINGTON, REFERENCE RANGE, would work fine.