Location: Barnet Hospital, Level 2, Breast Clinic, Wellhouse Lane, Barnet Screening options Screening options If you have one or more grandparents of Ashkenazi Jewish descent, you have two screening options: Tay-Sachs carrier testing only If you live in north west London, your GP can refer you to our genetics service for Tay-Sachs disease carrier screening for free. Read more about Jnetics Ashkenazi Jewish screening and to refer a patient for Tay Sachs carrier screening Screening for other conditions If you'd like to be tested for 9 common genetic conditions (including Tay-Sachs disease), you can book a screening session at Barnet Hospital for £190 without a referral from your GP. This service is part-subsidised by the charity Jnetics. Book an appointment at jnetics.org