Medical Genetics

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About Us

The Division of Medical Genetics at NewYork-Presbyterian/Weill Cornell Medical Center specializes in providing expert care for children, adolescents, and adults with genetic conditions. Our team of highly trained medical geneticists provides a personalized approach for the health and well-being of our patients across their lifespans.

We use the latest genetic technology to deliver expert clinical evaluation, risk assessment, and genetic counseling for a variety of genetic conditions. Our team works closely with other Weill Cornell Medicine physicians in specialties including cardiology, neurology, and oncology to provide comprehensive care for our patients.

Our expertise includes:

  • Preconception counseling and expanded carrier screening
  • Prenatal onset of genetic conditions and birth defects
  • Congenital and childhood onset diseases with a genetic basis
  • Coordination of care for patients with genetic conditions
  • Evaluation of patients with a family history of genetic conditions

We also diagnose and develop treatment plans for a myriad of conditions, including:

  • Abnormal genetic test results
  • Autism spectrum disorders
  • Birth defects and birth defect syndromes
  • Cancer predisposition syndromes
  • Chromosomal abnormalities
  • Developmental delay or intellectual disability
  • Family history of genetic diseases
  • Fetal Alcohol Spectrum Disorders (FASD)

Click here to learn what you can expect during your visit, how to request an appointment and answers to frequently asked questions about genetic counseling.

What Sets Us Apart

We offer appointment availability for outpatient consultations every day, making it easy for you to schedule a visit that fits your schedule. We also understand that urgent concerns can arise, so we make ourselves available for urgent consultations within 24-48 hours.

Diagnosis & Treatment

Our primary focus is the diagnosis and treatment of genetic or suspected genetic conditions. To accomplish this, we obtain detailed medical and family histories, perform comprehensive physical examinations and employ the latest laboratory testing to diagnose patients in our clinic.

Services & Programs

Weill Cornell Brain and Spine Craniofacial Program

Within the WCM Craniofacial Clinic, we collaborate with colleagues from ENT and other specialty departments to provide a multidisciplinary approach for children and young adults with abnormalities of the head and neck - especially those with craniosynostosis, cleft lip and cleft palate. Learn more.

Klinefelter Syndrome Care Center/ X and Y Chromosome Variations Program

The Weill Cornell Medicine (WCM) Klinefelter Syndrome Care Center offers multidisciplinary care for children and adults with Klinefelter syndrome and other X and Y chromosome variations. Co-directed by Dr. Lilian Cohen of Medical Genetics and Dr. Peter Schlegel of Urology, our program brings together a broad team of experts to offer our patients comprehensive evaluation and subspecialty care. Our goal is to provide the best care based on advances in health information and evidence-based treatment. We are part of the Association of X and Y Variations (AXYS) and the AXYS Clinic Consortium with ongoing efforts to improve clinical care, education, and research. Learn more.

Neurogenetics Clinic

We work with researchers at the Feil Family Brain and Mind Research Institute and the Division of Child Neurology to investigate the causes and consequences of neurological conditions including epilepsy, intellectual disability and other conditions that affect the brain and nervous system.

Prenatal Genetic Counseling and Fetal Care Center Program

Our expert team of physicians and genetic counselors at the Prenatal Genetic Counseling Program work closely with each patient and their obstetrician to address their genetic concerns about the health of the pregnancy. Learn more.

Our Locations

505 East 70th Street, Helmsley Tower, 3rd Floor
New York, NY 10021
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263 7th Avenue, Suite 4E
Brooklyn, NY 11215
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Our Providers

Omar Abdul-Rahman, M.D. Profile Photo
Omar Abdul-Rahman, M.D.
Clinical Genetics and Genomics (MD)
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Nanzeeba Ahmad, M.S. Profile Photo
Nanzeeba Ahmad, M.S.
Clinical Genetics and Genomics (MD)
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Jennifer Bassetti, M.D. Profile Photo
Jennifer Bassetti, M.D.
Clinical Genetics and Genomics (MD)
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Katherine Bergstrom, M.S. Profile Photo
Katherine Bergstrom, M.S.
Clinical Genetics and Genomics (MD)
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Lilian Cohen, M.D., MPH Profile Photo
Lilian Cohen, M.D., MPH
Clinical Genetics and Genomics (MD)
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Tessa Rootenberg, M.S. Profile Photo
Tessa Rootenberg, M.S.
Clinical Genetics and Genomics (MD)
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Veronica (Roni) Yamane, M.S. Profile Photo
Veronica (Roni) Yamane, M.S.
Clinical Genetics and Genomics (MD)
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