Hallmark Health System Inc., a community-based nonprofit health care system that serves Boston’s northern suburbs, will buy and install new medical, surgical and computer equipment, as well as renovate and improve its facilities, through a $30 million tax-exempt MassDevelopment bond purchased by Siemens Public Inc.

This is Hallmark’s third time receiving MassDevelopment financing since 2011.

“MassDevelopment is pleased to support Hallmark Health System as the organization upgrades its facilities with the latest technology and equipment,” MassDevelopment President and CEO Marty Jones said in a statement. “Boston’s metro north region depends on Hallmark’s centers, including Lawrence Memorial Hospital and Melrose-Wakefield Hospital, and these improvements will enhance Hallmark’s ability to provide state-of-the-art health care for the community.”