Starting or
Growing a Family?
Whether your are ready now or just thinking about it, reviewing family medical history with a genetic counselor is an important step.

Understand Your Chances for a Healthy Baby
The greatest likelihood for most pregnancies is a healthy baby. However, a review of your family medical history by a genetic counselor can determine your chances for a healthy baby and help you decide whether any genetic testing is right for you.

IN-DEPTH FAMILY MEDICAL HISTORY
More than 10% of couples have a genetic issue that routine prenatal care does not identify.*

PERSONALIZED
GENETIC TESTING GUIDANCE
Genetic testing is not one-size-fits-all. Choosing the right genetic test depends on both partners' medical history.

SUPPORT WITHOUT PRESSURE
We will listen and help you make decisions that are right for you and your family.
Our Services
Each of our online family medical history questionnaires is designed for where you are in your personal journey to parenthood.
For people who are considering pregnancy, freezing eggs, or fertility care

For people who are already pregnant
For people who want to learn their own chances for inherited diseases of adulthood.
How It Works
Put simply, our genetic counselors review your family medical history to determine your chances for a healthy baby and recommend any medical or genetic testing to better assess those chances.


1. ORDER
one of our services, called Family Screens, that fits your family's goals.
2. PROVIDE
your health and family information through a simple, secure, online form.
3. REVIEW
your comprehensive report called a Personalized Screening Plan.
4. TALK
with one of our genetic counselors to discuss your report and any next steps.
How We Compare
Many people wonder if they really need a genetic counselor instead of just relying on their regular healthcare providers. Fertility care and prenatal care providers usually ask some basic family history questions and bring up standard genetic testing. This information is more complete with an in-depth review of family medical history by a genetic counselor and personalized genetic testing recommendations. The earlier the better, and both partners need to participate in family medical history and sometimes genetic testing anyway.
Download a sample plan.
Not sure what to expect? Enter your email and we will send you a sample screening plan.
Who are genetic counselors?
Genetic counselors are health professionals trained to help people understand how genetics can affect the their health and the health of their families. Studies show that genetics professionals like genetic counselors have more expertise in genetic health assessment and genetic testing. More than 10% of pregnancies have a genetic issue identified by a genetic counselor's review of family medical history that was not identified by routine prenatal care alone.*
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What People Are Saying about Mainstream Genomics

I have referred many of my patients to Mainstream Genomics, and we have been extremely happy with the experience. We receive personalized and specific recommendations that include both the background of a condition, along with the pros and cons of doing further testing. Thank you!
— Ian Kroes, MD
Just Looking for General Information about Genetic Screening?
TRY OUR FREE INFORMATION GUIDES
How to reach us:
Mainstream Genomics, LLC
650-539-8842
*Meschede, SD and Horst, J. Prenatal Diagnosis 2000.