Meral Gunay-Aygun, MD
- Professor of Genetic Medicine
Expertise: Clinical Biochemical Genetics, Pediatric Genetics, Medical Genetics

Our team of experts at the Metabolic Genetics Clinic diagnoses and provides comprehensive care for children with inherited metabolic disorders, also known as inborn errors of metabolism. Children referred to our clinic for evaluation for a potential underlying inherited metabolic disorder present with a wide spectrum of issues, including failure to thrive, vomiting, hypoglycemia, altered mental status and recurrent unexplained illness.
In addition, we evaluate newborns with abnormal newborn metabolic screen results. Almost all babies born in Maryland are screened for more than 50 inherited metabolic diseases that can be treated if detected early. Specialists at our Metabolic Genetics Clinic evaluate newborns with abnormal screens right away, determine if the newborn screen is false positive or the baby is truly affected, and initiate treatment in a timely manner.
Our team of experts at the Lysosomal Storage Disease Center work to accurately diagnose lysosomal storage disease and provide treatment plans tailored to your needs.
Maryland Department of Health Newborn Screening Parents Page
Expertise: Clinical Biochemical Genetics, Pediatric Genetics, Medical Genetics
Expertise: Clinical Biochemical Genetics, Pediatric Genetics, Medical Genetics
Expertise: Pediatric Genetics, Medical Genetics
Expertise: Clinical Biochemical Genetics, Medical Genetics
Expertise: Pediatric Genetics, Medical Genetics
For more information, visit the Johns Hopkins Metabolic Genetics Clinic.
We also diagnose and treat patients who have a wide range of metabolic conditions.
Metabolic Emergencies ONLY
To reach a member of the Metabolic Genetics Clinic on-call team, patients and health care providers should call 667-239-0265 (available 24 hours/day, 7 days a week).
Metabolic emergencies may include high ammonia, metabolic acidosis, abnormal newborn screenings and pregnancy in patients with phenylketonuria or other inborn metabolic diseases. To request to transfer a patient who is an inpatient at another hospital to a hospital in the Johns Hopkins Health System, call the Hopkins Access Line.
David M. Rubenstein Child Health Building
200 N. Wolfe Street
Baltimore, MD 21287
Phone: 410-955-3071
Fax: 410-614-9246