Morgan Stanley said Tuesday that it had fired a star financial adviser who has been accused by multiple former wives and girlfriends of physical abuse and stalking.

The New York Times reported last week that Morgan Stanley executives for years had known about the allegations against the financial adviser, Douglas E. Greenberg. The Wall Street firm placed Mr. Greenberg, who worked in Portland, Ore., on administrative leave last week after being contacted by The Times.

In a statement on Tuesday, a Morgan Stanley spokeswoman said the bank needed to “do better” at handling such employee misconduct issues.

“We believe that our employees should behave in a manner consistent with our firm’s values and the trust our clients place in us, both of which include treating women, and indeed everyone, with dignity and respect,” the spokeswoman, Christy Jockle, said. “We have undertaken steps in recent years to ensure that issues such as this are properly escalated. However, in light of current events we must and will do better.”