Chubb Ltd. has appointed John Alfieri executive vice president of North America major accounts, which serves large companies in the U.S. and Canada.

Alfieri was most recently regional executive officer for the New York region, a role that Peter Tucker will take on. Tucker was regional COO for the New York region.

Also in the New York region, Amy Feller will become regional COO and New York City branch manager. She was previously the Long Island branch manager, a role that will go to Kevin Guinan. He previously was the company's executive vice president and eastern underwriting center manager in the commercial lines business.

All appointments are effective Oct. 5.