LOS ANGELES, CA  CallisonRTKL, the global architecture, planning and design firm, announces the addition of Allen Ho to the Health Sciences Practice Group in the Los Angeles, California, office. Ho joins CallisonRTKL as an Associate Vice President and brings more than 25 years of experience in the design and delivery of projects in both the United States and international markets.

"We are happy to welcome Allen back to CallisonRTKL and our Health Sciences Practice Group," said CallisonRTKL Executive Vice President and Global Health Practice Leader Brad Barker, AIA. "He is a valuable asset to our firm, as well as our clients, and brings a considerable amount of experience to the role."

Ho previously worked for RTKL as a Principal in healthcare. He returns to CallisonRTKL from NBBJ where he was a Senior Project Architect. Ho has recent experience in the design and management of large-scale healthcare and corporate projects and brings expertise in building envelope design, planning, and code compliance.