Rare Disease Institute - Genetics and Metabolism Contact number | 202-476-2187

Rare Disease Institute Opening

Children’s National Rare Disease Institute Opens Its Doors

Children’s National Rare Disease Institute (CNRDI) is a first-of-its-kind center focused exclusively on advancing the care and treatment of children and adults with rare genetic diseases.

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Children’s National Rare Disease Institute (CNRDI) is a first-of-its-kind center focused exclusively on advancing the care and treatment of children and adults with rare genetic diseases. Designated by the National Organization for Rare Disorders (NORD) as its first Center of Excellence for Clinical Care for Rare Diseases, the CNRDI aims to provide a medical home for patients and families seeking the most advanced care and expertise for rare genetic conditions that remain largely unknown to the general medical community.

Genetics and Metabolism at Children's National

(en español)

With more than 8,500 visits annually and 12 physicians, Children’s National Health System is the largest clinical genetics program in the United States.

Our division coordinates the multidisciplinary care of children with genetic, metabolic and undiagnosed disorders in collaboration with primary care physicians and specialists from other divisions at Children’s National. Additionally, every geneticist at Children’s National works in concert with a genetic counselor to manage both the clinical and practical aspects of treatment. The research interests of our practitioners ensure the most timely and thoughtful care for our patients.  

Our team of world-renowned medical experts, metabolic dietitians, nurse practitioners and genetic counselors offer care for your child’s physical needs, while our social workers, child life specialists and pastoral care staff offer support for your child and your family’s emotional, spiritual and mental health needs.

Our Inherited Metabolic Disorders Program is one of the largest in the country with more than 600 active patients. These disorders are rare among the general population and may be misdiagnosed, as symptoms are often similar to other conditions. Our program provides diagnostic testing, evaluation and management for patients with inborn errors of metabolism, as well as definitive testing and treatment for patients identified by newborn metabolic screenings. If your child is diagnosed with one of these disorders, the program offers a comprehensive specialized team that coordinates all aspects of your child’s care, including the services of metabolic dietitians for patients who must follow a special metabolic diet.

Conditions We Care for Include:

Genetic SyndromesMetabolic Diseases
22q11 deletion syndrome
Abnormal newborn screening results
Abnormal growth and development Biotinidase deficiency 
Adult genetic conditions Fatty acid oxidation disorders (MCAD, VLCAD, LCHAD) 
Autism Galactosemia 
Birth defects Lysosomal storage disorders, including enzyme replacement therapy patients 
Cancer genetics
Maple syrup urine disease 
Cardiac genetics 
Mitochondrial disorders 
Connective tissue disorders Organic acidemias (propionic acidemia, methylmalonic acidemia or aciduria) 
Craniofacial defects PKU (phenylketonuria) 
Deletion and duplication syndromes Urea cycle disorders (OTC, CPS, citrullinemia, arginase deficiency, HHH) 
Down syndrome  
Family counseling for genetic syndromes  
Genetic risk counseling  
Genetic testing interpretation  
Hearing loss  
Neurofibromatosis  
Skeletal dysplasias  
Undiagnosed genetic syndromes  

Leaders in Diagnosing and Treating Rare Disease

Children’s National is nationally and internationally acknowledged as a leader in treating metabolic diseases, urea cycle disorders, genetic syndromes and lysosomal storage diseases. The well-rounded nature of the clinical team also makes Children’s National a noted destination for treatment of rare and ultra-rare metabolic disorders, such as NAGS and propionic acidemia. 

Genetic Counseling and Family Services

Our genetic counseling team is committed to providing compassionate support for patients and their families. We provide genetic counseling services for families with a known genetic disorder and recurrence risk counseling for parents of a child with an inherited condition.

Our genetic counselors provide information on family planning options, explain the testing options available to you and help coordinate referrals for related specialists at Children’s National. We see patients through self-referral or with referral from a primary care physician or another subspecialty clinic within Children’s National.

We also provide in-depth counseling for carrier screening results.  

Other Services Offered

  • 24-hour emergency consultations and telemedicine services at area hospitals for newborns with birth defects or suspected genetic or metabolic disorder
  • Emergency consultation and diagnostic testing for newborns with abnormal state newborn screens in both Washington, D.C., and surrounding states
  • Diagnosis and management of children and adults with birth defects and genetic disorders
  • Genetic counseling and cancer screening for individuals and families with a suspected or confirmed diagnosis of a cancer predisposition syndrome, in conjunction with the Division of Oncology
  • Continuity of care through multidisciplinary clinics, including neurofibromatosis, skeletal dysplasias, Down syndrome and inborn errors of metabolism
  • Prenatal services for at-risk pregnancies with transition to coordinated management of the newborn, in conjunction with the Fetal Medicine Institute
  • Genetic counseling for individuals and families with a history or suspected history of a genetic disorder
  • Carrier screening and genetic counseling for high-risk groups
  • Diagnosis and management of children and adults with inborn errors of metabolism, including those requiring special metabolic diet
  • Comprehensive care for individuals with lysosomal storage disorders, including enzyme replacement, pharmacologic chaperone, and substrate reduction therapies

Children’s National also provides educational outreach to community physicians, schools and families through lectures, seminars and parent support groups.

Genetic testing is not currently covered by all healthcare plans. As our team works with your family, we will discuss testing options and attempt to optimize your testing plan in line with your insurance guidelines. Contacting your insurance before your visit to determine their testing guidelines has been helpful for some families to direct our conversations.

You will be seen by both a geneticist and a genetic counselor, both of whom will submit a bill to your insurance provider. If you have health insurance that requires a referral and/or authorization for geneticist or genetic counseling services, please bring your referral to your appointment. If you are unsure if you need a referral, please contact your primary care physician or health insurance provider.


Rare Disease Institute - Genetics and Metabolism Team