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Mount Sinai DoctorsTreats Children
Accepting New PatientsMargo S Breilyn, MD
Pediatrics, Genetics and Genomics
Medical Genetics
212-241-6947
- About Me
- Clinical Focus
- Education & Certifications
- Locations
- Insurance
- Patient Experience Rating
- Industry Relationships
About Me
Language
Position
Hospital Affiliations
- Mount Sinai Beth Israel
- Mount Sinai Morningside
- Mount Sinai Brooklyn
- Mount Sinai Queens
- The Mount Sinai Hospital
- Mount Sinai West
Research Topics
Genetics, Metabolism, Metabolomics
About Me
Language
Position
Hospital Affiliations
- Mount Sinai Beth Israel
- Mount Sinai Morningside
- Mount Sinai Brooklyn
- Mount Sinai Queens
- The Mount Sinai Hospital
- Mount Sinai West
Research Topics
Genetics, Metabolism, Metabolomics
Clinical Focus
- Carnitine Disorders
- Fatty Acid Oxidation Defects
- Galactosemia
- Glutaric Acidemia
- Glycogen Storage Diseases
- Homocystinuria
- Hypoglycemia
- Maple Syrup Urine Disease
- Metabolic Assessment and Management
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- Carnitine Disorders
- Fatty Acid Oxidation Defects
- Galactosemia
- Glutaric Acidemia
- Glycogen Storage Diseases
- Homocystinuria
- Hypoglycemia
- Maple Syrup Urine Disease
- Metabolic Assessment and Management
- Metabolic Encephalopathy
- Methylmalonic Acidemia
- Newborn Screening
- Organic Acidemias
- Pediatric Second Opinion
- Phenylketonuria
- Propionic Acidemia
- Urea Cycle Defects
Education
MD, State University of NY at Stony Brook School of Medicine
Residency, Medical Genetics, Ph.D. Medical Genetics
Icahn School of Medicine At Mount Sinai
Certifications
American Board of Pediatrics
Locations
Insurance Information
Accepted insurance may vary by the doctor’s office location. Please contact the office directly to obtain the most up-to-date insurance information.
Patients with Healthfirst Medicare Advantage insurance: Effective , Mount Sinai’s primary care providers (internal medicine, family practice, and geriatrics) are not accepting new Healthfirst Medicare patients. Please contact Healthfirst for help finding a primary care provider. Healthfirst Medicare members who have a relationship with a Mount Sinai primary care provider can continue to book appointments with them.
- Medical Genetics1428 Madison Avenue, 1st Floor, Room AB1-12, New York, NY, 10029
- 1199 SEIU
- AETNA - Commercial
- AETNA - Medicare
- Affinity Medicaid-Medicare-Essential Exchange
- Amidacare Medicaid
- CIGNA Healthcare
- Centivo
- Cigna - Medicare
- Elderplan
- EmblemHealth - GHI-PPO
- EmblemHealth - HIP
- EmblemHealth - HIP-Medicare
- Empire Blue Cross Blue Shield - Commercial/Exchange
- Empire Blue Cross Blue Shield - HealthPlus Medicaid
- Empire Blue Cross Blue Shield - Medicare
- Fidelis Health Care
- HealthFirst Medicaid
- HealthFirst Medicare
- Horizon NJ
- Hotel Trades
- Humana Medicare
- Magnacare-Health Care
- Medicare - NJ
- Medicare - NY
- Metroplus
- Multiplan PHCS
- NJ Medicaid
- NY Medicaid
- Oscar
- Oxford - Freedom and Liberty
- Partners Health Plan
- Senior Whole Health
- United Health Care - Commercial
- United Health Care - Empire Plan
- United Health Care - Oxford Care
- United Health Care - Top Tier
- VNSNY Choice Medicare
- VNSNY Select Health Medicaid
- VillageCareMax
- WellCare Health Plan
Physicians who provide services at hospitals and facilities in the Mount Sinai Health System might not participate in the same health plans as those Mount Sinai hospitals and facilities (even if the physicians are employed or contracted by those hospitals or facilities).
Information regarding insurance participation and billing by this physician may be found on this page, and can also be obtained by contacting this provider directly. Because physicians insurance participation can change, the insurance information on this page may not always be up-to-date. Please contact this physician directly to obtain the most up-to-date insurance information.
Insurance and health plan networks that the various Mount Sinai Health System hospitals and facilities participate in can be found on the Mount Sinai Health System website.
Patient Experience Rating
The Patient Experience Star Rating reflects our patients’ perception of how well their Mount Sinai provider communicated with them during an office visit. The Star Rating is based on patient responses to three questions on a patient experience survey, a standardized questionnaire sent to verified patients and distributed by a third party vendor, Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score.
Industry Relationships
Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device, biotechnology companies, and other outside entities to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their outside financial relationships.
Below are financial relationships with industry reported by Dr. Breilyn during 2023 and/or 2024. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.
Consulting or Other Professional Services Examples include, but are not limited to, committee participation, data safety monitoring board (DSMB) membership
- Moderna Therapeutics, Inc.
Mount Sinai's faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.
Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device, biotechnology companies, and other outside entities to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their outside financial relationships.
Below are financial relationships with industry reported by Dr. Breilyn during 2023 and/or 2024. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.
Consulting or Other Professional Services Examples include, but are not limited to, committee participation, data safety monitoring board (DSMB) membership
- Moderna Therapeutics, Inc.
Mount Sinai's faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.