An embattled Newton physician will no longer be practicing medicine in the State of Iowa after surrendering his medical license to the Iowa Board of Medicine late last week.

In a ruling handed down by the Iowa Board of Medicine on Wednesday morning, Dr. Lafayette J. Twyner signed onto a settlement agreement earlier this month. The agreement was approved by the board last Thursday.

As part of the agreement, he voluntarily surrendered his license, waiving his right to a contested-case hearing. He also must pay a $10,000 civil penalty.