In order for you, or your Massachusetts personal injury attorney to get your medical records and medical bills into evidence at trial, they must be certified pursuant to M.G.L. c. 233, 79G. They must be sent via certified mail to the defense attorney representing the person you are suing. After they have been sent to the defense attorney, the return receipt must be sent to the court to show that you sent the medicals to the defense attorney in advance of trial. Remember, there are Rules of Evidence which dictate how and when to introduce evidence at trial, and, more importantly, these rules must be followed very closely.