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Contact Us:

3F Clinic, 3N 12-20, McMaster Children's Hospital

Phone: 905-521-2100 ext. 73984 (3F Clinic)

Phone: 905-521-5085 (Newborn Screening Center)

Fax: 905-521-2651

Clinic Hours:

The clinic hours run from 8:30 a.m. - 4:30 p.m., Monday to Friday (closed on holiday's)

What Services do we Provide?

Genetic Consultation and investigation through:

Genetics Clinic: for diagnosis and management of children and adults with genetic issues

Genetic Counselling Clinic: provides education and counselling to parents or families about genetic/ metabolic conditions in their family

Metabolic Clinic: for diagnosis, management, and follow-up of children and adults with inherited  metabolic disorders

Newborn Screening Centre: one of 5 referral centers in the province for newborn screening, responsible for retrieving all positive newborn screens in our region.

  • Meet with the family to go over screenings, and arrange follow-up testing

Reasons to Refer to the Genetics Clinic:

  • Congenital anomalies

  • Family history of known genetic conditions

  • Regression in development

  • Consanguinity

Conditions We Diagnose:

  • Genetic conditions such as: Chromosomal Abnormalities (e.g., Turner Syndrome, Klinefelter Syndrome)Inherited Cardiac Conditions, Huntington Disease, Marfan Syndrome, Noonan Syndrome, Cystic Fibrosis, Thalassemia, Metabolic Disorders (e.g., fatty acid oxidation defects, organic acidemias, amino acidopathies, lysosomal storage disorders)

Clinic Location:

The hospital is located at 1200 Main St. W., Hamilton, ON, L8N 3Z5.

Most genetic counselling appointments take place  in 3N12-20.

Most doctors appointments take place in the 3F clinic.

Your appointment letter will direct you to the appropriate location.

Hospital Map

What Happens When We Arrive?

When you arrive to the clinic please check in with the Business clerk at the reception desk. The business clerk will let the team know that you have arrived.

Staff will do their best to make sure you are seen at your appointment time.  If you feel you have been waiting a long time please speak with a business clerk at the reception desk. 

Referral Process:

Referrals can be faxed directly to the clinic as noted on the referral form.

Urgent Referrals:

The clinics are not for emergencies. If you/ your child needs to be seen on an emergent basis, please contact your family doctor or go to your local emergency department.

Certain referrals are given priority appointments (pregnancy at risk, sudden deterioration in clinical status or developmental regression). If one of these applies to you/ your child, be sure your referring/ family doctor indicates this is on the referral.

Changing Your Appointment:

Please contact us as soon as possible if you need to change or cancel an appointment.

If there is any change in the clinical status of you/ your child (sudden deterioration, pregnancy, etc.) contact your referring or family physician so that he/she can ask us to prioritize your appointment


If you or your child has a respiratory illness with coughing/fever or vomiting/diarrhea please do not come to the clinic but call for further assessment/instructions as soon as possible prior to the appointment.

If you or your child has a communicable disease such as Chicken Pox or has been in contact with someone with Chicken Pox, please call the clinic before you come to the hospital.

What Should You Bring To The Clinic?

  • Health card of child and parents- The Ministry of Health and Long Term Care requires us to validate your health card at every clinic visit.

  • Any genetic results from your doctor/ pediatrician

  • Any other relevant documentation

Interdisciplinary Team:

Genetic Counselor: A health care professional who provides information and resources to patients and families about genetic conditions, tests related to those conditions, and facilitates genetic testing.

  • Genetic counsellors provide care to pregnant women, children, and adults

Genetic Counselor (Newborn Screening):

  • A genetic counsellor who works with patients and families to help understand newborn screening results, and arranging follow-up testing and management.


  • A medical doctor who assesses, evaluates, diagnoses, and manages patients with genetically inherited conditions

Metabolic Team:

  • Genetic counsellor, metabolic dietitian, social worker, and metabolic physician

  • Involved in the follow-up of positive newborn screens for inherited metabolic disorders

  • Diagnose, treat, and follow children and adults with inherited metabolic disorders

Metabolic Physician: geneticist specializing in metabolic disorders

Our Philosophy:

Our philosophy is family-centered care. We strive to provide the best care possible.


National Society of Genetic Counselors

Canadian Association of Genetic Counselors

Newborn Screening Ontario

American Board of Genetic Counseling

American College of Medical Genetics and Genomics

Canadian College of Medical Geneticists

Hamilton Health Sciences • Hamilton, Ontario • 905.521.2100

Disclaimer: Hamilton Health Sciences (HHS) offers Google Translate to better facilitate access for our community. However, HHS makes no claims regarding the accuracy of translations. Any and all health information should be verified by a health care professional.