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Physician HeadShot

Mary E. D'Alton, MD

Maternal-Fetal Medicine (Board Certified, Primary Specialty)
Obstetrics and Gynecology (Board Certified)
Office Phone: (212) 326-8951
One of America's Top Doctors
Rated one of New York Magazine's Best Doctors


Mary D'Alton, MD specializes in high-risk Maternal-Fetal Medicine, performing prenatal diagnostic procedures and managing maternal health complications. She has implemented a multidisciplinary approach to treat highest risk pregnancies and to diagnose and treat fetal complications. She was instrumental in setting up two high-risk pregnancy centers at NewYork-Presbyterian/Columbia University Irving Medical Center, the Mothers Center and the Carmen and John Thain Center for Prenatal Pediatrics. The Mothers Center, which opened in May 2018, is a first-of-its-kind space dedicated to providing coordinated care to pregnant women with complications requiring specialized care, and the Center for Prenatal Pediatrics is a regional coordinated care center to treat fetal complications. Dr. D’Alton has promoted quality monitoring and training in new technologies to support clinical applications.

Her work to advance research, policy development and clinical practice has won national recognition. In 2013, Dr. D’Alton was elected as a member to the National Academy of Medicine (formally the Institute of Medicine). Honored with a Lifetime Achievement Award in 2006 by the Society for Maternal-Fetal Medicine, she has served as its president and has held key positions in several professional organizations, including the American Gynecological and Obstetrical Society (AGOS) and the American College of Obstetricians and Gynecologists (ACOG).

Dr. D’Alton has written and contributed to more than 200 publications. She co-authored Fetology, awarded the 2001 Association of American Publishers Award for Best Textbook in Clinical Medicine. She is co-editor of Seminars in Perinatology and has served on the Editorial Board of ACOG’s Obstetrics and Gynecology.

Area of Expertise

Please contact the doctor's office to verify that your insurance is accepted.

Aetna [EPO, HMO, Medicare Managed Care, NY Signature, POS, PPO, Signature Administrators, Student Health]

Affinity [Essential Plan, Medicaid Managed Care, Medicare Managed Care]

Amida Care [Special Needs Plan]

Cigna [EPO, Great West, HMO, POS, PPO]

Emblem/GHI [HMO, Medicare Managed Care, PPO]

Emblem/HIP [ConnectiCare, EPO, Essential Plan, HMO, Medicaid Managed Care, Medicare Managed Care, POS, PPO, Select Care (Exchange), Vytra]

Empire Blue Cross Blue Shield [Blue Priority, EPO, HMO, Medicare (Mediblue), NYP Employee Plan, Pathway (Exchange), POS, PPO]

Empire Blue Cross Blue Shield HealthPlus [Child/Family Health Plus, Essential Plan, Medicaid Managed Care]

Fidelis Care [Child/Family Health Plus, Medicaid Managed Care, Medicare Managed Care]

Healthfirst [Child/Family Health Plus, Medicaid Managed Care, Medicare Managed Care]

Local 1199 [Local 1199]

MagnaCare [MagnaCare]

Medicare [Traditional Medicare (NY)]

Multiplan [Multiplan]

Oxford Health Plans [Freedom, Liberty, Medicare Managed Care]

UnitedHealthcare [Columbia University Employee Plan, Compass (Exchange), EPO, Essential Plan, HMO, Medicaid (Community Plan), Medicare Managed Care, POS, PPO]

VNSNY CHOICE [Medicare Managed Care, SelectHealth]

WellCare [Medicaid Managed Care, Medicare Managed Care]


National University of Ireland, Faculty of Medicine (Ireland)

Internship: University College, Galway (Ireland)

Residency: Ottawa General Hospital

Fellowship: Tufts University Hospital

Fellowship: Yale New Haven Hospital


ColumbiaDoctors Midtown

51 West 51st Street
Room 320
New York, NY 10019

Phone: (212) 326-8951

Fax: (212) 305-5610

Get Directions

Willard C. Rappleye Professor of Obstetrics and Gynecology

Transit Advisory Notice

Starting Jan. 5, 2019, 1 trains will bypass the 168th Street subway station at NewYork-Presbyterian/Columbia University Irving Medical Center until early 2020.