Dr. Mir Shah was stabbed in the neck during an attempted robbery in the bathroom of the Westin Hotel's restaurant.
An employee of the restaurant came to help him and was also injured.
The incident, which occurred right after the Magnificent Mile Lights Festival has some downtown visitors concerned.
"I don't come down here often, but knowing that someone did get stabbed, makes me feel unsafe," said Zoe Khan.
The suspect in the incident was arrested although no charges have been filed yet.
The Shah family released a statement which says in part, "This was an enjoyable night out for the family turned horribly tragic, but it could have been much worse. Dr. Shah was senselessly attacked last night, and we were fortunate to be able to summon help."
