Doctors at a Wisconsin hospital say they are caring for a man with no known identity, and they need the public's help to identify him.

Officials at Wheaton Franciscan Healthcare – St. Francis say the man is between 40 and 50 years old, 5' 8" and about 150 pounds. He's missing all his upper teeth, and has limited ability to communicate.

The man is believed to be Hispanic in origin, with mostly shaven hair. He arrived by ambulance, but no one has called inquiring about a missing person.

Hospital officials say the man fell and hit his head in Milwaukee on May 5.

Anyone with information is asked to call 414-647-7400.