Ryan Eric Longman MD
Maternal & Fetal Medicine/High Risk, Reproductive Genetics/Prenatal Genetics
Associate Professor, Obstetrics & Gynecology, Director of Ultrasound and Genetics, Director of Fetal Neonatal Care Center, The University of Chicago, Pritzker School of Medicine
156 William StFl 7New York, NY 10038
Fax+1 773-702-0840
Overview of Dr. Longman
Dr. Ryan Longman is an obstetrician/gynecologist in New York, NY and is affiliated with multiple hospitals in the area, including New York-Presbyterian Hospital and NewYork-Presbyterian/Lower Manhattan Hospital. He received his medical degree from Sidney Kimmel Medical College at Thomas Jefferson University and has been in practice 25 years. Dr. Longman accepts several types of health insurance, listed below. He is one of 92 doctors at NewYork-Presbyterian/Lower Manhattan Hospital and one of 651 doctors at New York-Presbyterian Hospital who specialize in Obstetrics & Gynecology. He has more than 30 publications and over 500 citings.
Education & Training
University of MichiganResidency, Medical Genetics and Genomics, 2007 - 2009- University of MichiganFellowship, Maternal-Fetal Medicine, 2005 - 2007
Icahn School of Medicine at Mount Sinai/Mount Sinai HospitalResidency, Obstetrics and Gynecology, 2001 - 2005
Sidney Kimmel Medical College at Thomas Jefferson UniversityClass of 2001
University of PennsylvaniaBA, Biology, 1990 - 1994
Certifications & Licensure
FL State Medical License 2014 - 2028
IN State Medical License 2019 - 2027
NY State Medical License 2004 - 2027
IL State Medical License 2019 - 2026
MO State Medical License 2009 - 2016
MI State Medical License 2005 - 2012
American Board of Obstetrics and Gynecology Obstetrics & Gynecology
American Board of Medical Genetics and Genomics Clinical Genetics and Genomics
Awards, Honors, & Recognition
- Fellow (FACOG) American Congress of Obstetricians and Gynecologists
Publications & Presentations
PubMed
- Interventions and Perinatal Outcomes Associated With Recipient Twin Cardiomyopathy in the Setting of Twin-To-Twin Transfusion Syndrome: A Systematic Review.Briana Tolbert, Sandhya Chandrasekaran, Vanya Manthena, Gabrielle Sudilovsky, Andrew Rausch
Prenatal Diagnosis. 2026-04-05 - Transvaginal shear wave elastography for measuring uterine myometrial and leiomyoma stiffness: a protocol pilot study.Hannah T Ryles, Sumeyra Agambayev, Mervat Omran, Chuanhong Liao, Samar Alkhrait
F&S Science. 2026-01-01 - 1 citationsThe Ultrasonography Characteristics of Borderline Ovarian Tumor Subtypes.Roni Yoeli-Bik, Ernst Lengyel, Ilan E Timor-Tritsch, Katherine Kurnit, Serghei Puiu
Journal of Ultrasound in Medicine. 2025-11-01
Press Mentions
NewYork-Presbyterian Lower Manhattan Hospital Celebrates Newly Renovated Postpartum UnitMarch 19th, 2026- Dr. Ryan Longman Named Chief of Obstetrics and Gynecology at NewYork-Presbyterian Lower Manhattan HospitalJanuary 15th, 2026
Professional Memberships
- Fellow
Insurance Accepted
- Aetna Choice POS II
Aetna HMO
BCBS Blue Card PPO
BCBS California PPO
BCBS Texas BlueChoice
Blue Shield California PPO
CIGNA HMO
CIGNA Open Access
CIGNA PPO
Coventry Health Care PPO PlatinumCoventry Missouri - HMO/POS
First Health PPO
Great West PPO
Horizon BCBS PPO
Humana ChoiceCare Network PPO
Multiplan PHCS PPO
Multiplan PPO
United Healthcare - Direct Choice Plus POS
United Healthcare - Direct Options PPO - Please verify your coverage with the provider's office directly when scheduling an appointment
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