
14 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Cohen, Clinical Geneticist in New York, NY?
Lilian L. Cohen, M.D., M.P.H. is an Assistant Professor in Pediatrics at Weill Cornell Medicine?and Assistant Attending Pediatrician in the Department of Pediatrics at NewYork-Presbyterian Phyllis and David Komansky Center for Children's Health/Weill Cornell Medical Center. She is board-certified in pediatrics and clinical genetics.Dr. Cohen completed her undergraduate studies at Columbia College in New York. Dr. Cohen then attended medical training at the University of North Carolina in Chapel Hill, where she earned her Medical Degree (M.D.) and a Master's in Public Health (M.P.H.). She completed residency in Pediatrics at NewYork-Presbyterian Hospital/Weill Cornell Medical Center and continued further training in Medical Genetics at Albert Einstein College of Medicine and The Children's Hospital at Montefiore.Dr. Cohen cares for families who have or may have genetic concerns, prior to or during a pregnancy as well as after birth. Her clinical interests range from reproductive medicine to a wide range of genetic conditions requiring coordination of care at various ages such as cardiogenetic or neurodevelopmental disorders.?Clinical Programs:As Co-Director of the Weill Cornell Klinefelter Syndrome Care Center, Dr. Cohen works with a multidisciplinary team of specialists caring for children and young adults with X and Y chromosome variations. Program Website: https://weillcornell.org/wcm-klinefelter-syndrome-care-center.She also sees children with clefts and craniofacial disorders as part of the Weill Cornell Craniofacial Clinic.? Program website: http://weillcornellbrainandspine.org/craniofacial?Research:Her research focuses on improving medicine utilizing genetic testing and genomic approaches. She is interested in how diagnosing conditions using molecular technology can help improve decision-making and early treatment for families. Dr. Cohen is currently active in ongoing studies with newborn screening and genome sequencing through research collaborations at several academic centers and the New York State Department of Health.Newborn screening GUARDIAN Study: https://guardian-study.org/.Education & Advocacy:She continues to work with several family advocacy and international support groups involving research and treatment for rare diseases.In addition to clinical work, Dr. Cohen is actively involved in the teaching of medical students, residents and fellows from different departments as well as graduate students in genetic counseling. ?She is the program director for the medical genetics residency program at Memorial Sloan Kettering Cancer Center and New York Presbyterian Hospital. ?Outside of work, Dr. Cohen enjoys spending time and traveling with her husband and four children.
What are Areas of Expertise for Dr. Cohen?
Dr. Lilian Cohen, MD is a highly-rated, board-certified Clinical Geneticist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Cohen empowers patients to confidently navigate their health journey, specializing in Autism Spectrum Disorders, Cardiovascular Genetics, Chromosome Disorders, Cleft Palate/Lip, Craniofacial Disorders, Developmental Disorders, Marfan Syndrome, Reproductive Genetics, and comprehensive wellness support. Serving the New York, NY community, Dr. Cohen is dedicated to enhancing lives through expert, patient-centered care.
Is Dr. Cohen board certified as a Clinical Geneticist?
Yes, Dr. Lilian Cohen, MD is board certified by the American Board of Medical Genetics , American Board of Pediatrics
What languages does Dr. Cohen speak?
Dr. Cohen and their clinical team can communicate with patients in the following languages:
English
What conditions does a Clinical Geneticist like Dr. Cohen typically treat?
As a Clinical Geneticist, Dr. Cohen diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Cohen. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Other Genetic and Chromosomal Screening
- Genetic Testing
- Health Screening
- Additional Genetic Testing
- Advanced Chromosome Screening
- Specific Genetic Anomaly Screening
ICD-10 Codes:
- Z1379: Encounter for other screening for genetic and chromosomal anomalies
Also known as:
- Autism
- Autism Spectrum Disorder
- Classic Autism
- Kanner's Syndrome
- Severe Autism
ICD-10 Codes:
- F840: Autistic disorder
Also known as:
- Other Abnormal Findings in Organ or Tissue Samples
- Unusual Organ Test Results
- Atypical Tissue Findings
- Abnormal Specimen Analysis
ICD-10 Codes:
- R898: Other abnormal findings in specimens from other organs, systems and tissues
Also known as:
- Family history of genetic disease carrier
- Family History
- Genetic Disorder
- Inherited genetic disease risk
- Genetic carrier status in family
- Family history of inherited conditions
ICD-10 Codes:
- Z8481: Family history of carrier of genetic disease
Also known as:
- Child Development Problems
- Child Development
- Developmental concerns in children
- Abnormal child development
- Lack of normal development
ICD-10 Codes:
- R6250: Unspecified lack of expected normal physiological development in childhood
Also known as:
- Klinefelter Syndrome
- XXY Syndrome
- 47,XXY Karyotype
- Klinefelter's
ICD-10 Codes:
- Q984: Klinefelter syndrome, unspecified
Also known as:
- Family History of Birth Defects or Genetic Disorder
- Birth Defects
- Family History
- Genetic Disorder
- Genetic risk for birth defects
- Hereditary chromosomal abnormalities
- Congenital anomalies in family
ICD-10 Codes:
- Z8279: Family history of other congenital malformations, deformations and chromosomal abnormalities
Does Dr. Cohen accept my insurance?
Dr. Cohen accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Cohen accept in New York, NY?
Dr. Cohen in New York, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Cigna Group
CVS Health (formerly Aetna)
EmblemHealth
Healthfirst New York
Medicare
National Benefit Fund
Service Employees International Union (SEIU)
UMR Administered Payer
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Cohen's office located?

NewYork-Presbyterian Medical Genetics
505 East 70th Street, Helmsley Tower, 3rd Floor
New York, NY 10021
What is Dr. Cohen's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Cohen's National Provider Identifier (NPI) number is 1033376827.
What common questions do patients ask about Dr. Cohen?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Cohen
What is Dr. Lilian Cohen's specialty?
Dr. Cohen is a Clinical Geneticist near New York, NY.
What does a Clinical Geneticist do?
A clinical geneticist is adept at offering thorough diagnostic, management, and counseling services for genetic disorders.
Is this Dr. Lilian Cohen affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Cohen is affiliated with Newyork-Presbyterian Hospital/weill Cornell Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see a Clinical Geneticist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Clinical Geneticist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Lilian Cohen accepting new patients in New York, NY?
Yes, Dr. Lilian Cohen is accepting new patients at this time.
Does Dr. Lilian Cohen offer online booking?
Please contact Dr. Cohen's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Lilian Cohen?
Please contact Dr. Cohen's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Lilian Cohen have?
Dr. Lilian Cohen is certified by the American Board of Medical Genetics and American Board of Pediatrics.
Other Clinical Geneticist Near New York, NY

Dr. Omar Abdul-Rahman, MD is a Clinical Geneticist, who primarily practices in New York, NY. He has been practicing for over 19 years and is board certified.
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Dr. Christopher Cunniff, MD is a Clinical Geneticist, who primarily practices in New York, NY. He is board certified.
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Dr. Jennifer Bassetti, MD is a Clinical Geneticist, who primarily practices in BROOKLYN, NY with 1 additional practice location.
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Connect with DR. Cohen
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NewYork-Presbyterian Medical Genetics
505 East 70th Street, Helmsley Tower, 3rd Floor
New York, NY 10021