Laurel Road was previously known as DRB and despite some minor confusion with the name change, they are developing a strong following. Rates are low, generally around 2.8%-7%. They have multiple term options including 5,7,10,15 and 20 year options. They also allow parents to refinance PLUS loans and they will allow medical residents to refinance. They offer really good rates, and several people have reported that they offered lower rates than any other company that they tried.
If you use this link, Laurel Road will give you $200 when you refinance with them!
Student Loan Refinancing 