California Early Hearing Detection & Intervention (EHDI)

Mt. Diablo USD (Concord, PH)

Ilana Greenblatt
E: greenblatti@mdusd.org

Research shows that identifying hearing loss by six months of age, followed by appropriate intervention, leads to better language development outcomes.

Keeping Children On Track With 1-3-6

1 Month

Hearing Screenings Of All Infants Before 1 Month Of Age.

3 Months

Audiological Diagnosis Before 3 Months Of Age If The Infant Does Not Pass Hearing Screening.

6 Months

Enrollment In Early Intervention Services and connected with Family/Parent Mentor By 6 Months Of Age. 

California Early Start Services

Our services, available through California’s Early Start program, support infants and toddlers with disabilities, including Deaf and Hard of Hearing children.

Learn More About Early Start Services

Local Support and Events

Find services and resources near you, from early intervention to specialized education. Access community support, including events, workshops, and support groups.

Find Services and Events Near Me

Resources and Free Downloads

Access a wealth of resources, including educational materials, guides, and free downloads to help you support your Deaf or Hard of Hearing child’s development.

Explore Resources

A young girl with a cochlear implant is holding a stuffed animal, looking out into the distance with curiosity. Her confident expression highlights her readiness to explore the world.

Understanding Your Child's Hearing

Early diagnosis is crucial in planning the right support for your child. Learn about the types of hearing loss and understand the implications for your child’s development.

Hearing Levels

Understand ranges of hearing from moderate to profound.

Children can experience mild, moderate, severe, or profound hearing loss, each affecting their ability to hear and understand sounds in different ways.

Learn More About Hearing Levels

Types of Hearing

Understand ranges of hearing from moderate to profound.

Explore genetic factors, prenatal and perinatal issues, infections, and environmental factors.

Types of Hearing

Early Start Referral Form

To start receiving services, ensure your child’s audiologist completes our Early Start Referral form here.

About LEAD-K and Letter to Parents and Families

Learn more about LEAD-K Family Services and read our letter to parents and families.

Comprehensive Support Across California

Find the resources and support available in your region, and connect with mentors and services to help your child thrive.