How do i contact hr at mcmaster university? Health Sciences Human Resources Services. McMaster University. Faculty of Health Sciences. 1280 Main St. W., HSC 2J1A. Hamilton, Ontario L8S 4K1. Canada. Phone: (905) 525-9140 ext. 22207. Fax: (905) 526-6623.How do i contact mcmaster childrens centre? Phone: 905-526-1222. Fax: 905-526-0735. [email protected]. McMaster Children’s Centre is currently located on the west side of the McMaster University campus near to green space and trails.How do i contact the university of masters registrar? Registrar’s Office / Enrolment Services. Melissa Pool. University Registrar. Ext. 24525. Email: [email protected]. University Hall, Room 209.