This study assessed the relationship between the medical home and use of health services among children with autism spectrum disorder (ASD). Data from 2016 to 2018 National Survey of Children's Health was analyzed. Outcome measures were receipt of mental and non-mental specialty care, difficulty receiving needed mental and non-mental specialty care and unmet need for mental care. Having a medical home was associated with significantly lower odds of having unmet mental health need for children with ASD ages 11-17 (OR 0.14, 95% CI 0.07-0.30) but not for those ages 3-10 (OR 0.54, 95% CI 0.21-1.43). Having a medical home was also associated with lower odds of difficulty getting needed mental health care (OR 0.38, 95% CI 0.22-0.66) as well as non-mental specialty care (OR 0.24, 95% CI 0.13-0.44).