After parking his car, the victim was waylaid by three suspects. One of the assailants whipped out his gun and shot the doctor near the Mosque, authorities said.
According to Houston Police Department, the man was shot twice and was rushed to a nearby hospital. His condition was not immediately known.
Police have launched an investigation and prima facie, they suspect it to be an attempted robbery, and not a hate crime.
Police said there is no indication that the attack was a hate crime, but its proximity to the Mosque has made some people worried.
The incident comes a day after another Muslim manwas beaten outside of a Mosque in Florida.
Though Houston Police said that the incident appeared to be a robbery attempt and not a hate crime, violence and threats against Muslims have increased in the months since the terror attacks in Paris and San Bernardino.