Welcome to DoctorOnLien.com, an affiliate of PowerLiens.com! Your best resource for info on doctors on lien and Letters of Protection (LOPs). This site was created to be an information resource to help attorneys and the public get access to resources that will help them find doctors on liens and Letters of Protection (LOPs). Liens and LOPs are used when injury victims, generally uninsured, are treated by doctors who collect their fees from the settlement of the personal injury case, rather than from the patient directly. Many types of doctors do lien/LOP work but a lot of time, they are hard to find. We can help direct you to resources that specialize in finding doctors for personal injury cases. There are many different companies out there, all offering a variety of services. Our affiliate website, PowerLiens.com is one resource that we highly recommend to help you find doctors on liens and Letters of Protections (LOPs). They have a free directory that houses the largest database of physicians working on liens/LOPs. Read more by clicking the links above!