Yes, if you receive an unfavorable result at a medical board ALJ hearing, it is possible to challenge the outcome and seek to have the ALJ's decision overturned. The procedures and timelines vary by state; and, again, you will want to work with experienced medical license defense counsel to ensure that you do what is required. If necessary, you can ultimately take your case to court and go through the judicial appeals process to seek to have your adverse licensing action overturned.