What is Mesmac Newcastle? Mesmac Newcastle is a service for gay and bisexual men in the North East. They offer free HIV tests, advice and information, support groups and one-to-one support, and can signpost you to other local services that can help with other issues like domestic abuse. Watch Community Worker Steve Greenwood below for more information. Visit www.mesmacnewcastle.com Call 0191 233 1333.