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Sei Iwai, MD, Cardiology, Valhalla, NY

Sei Iwai MD

Cardiology•Valhalla, NY

Cardiac Electrophysiology

Section Chief, Cardiac Electrophysiology; WMC Health Network

Request appointment

  • 100 Woods RoadMacy Pavilion Room 100Valhalla, NY 10595

  • Book by Phone+1(914) 313-8394

  • Fax+1 914-493-1203

Overview of  Dr. Iwai

Dr. Sei Iwai is a cardiologist in Valhalla, NY and is affiliated with multiple hospitals in the area, including Westchester Medical Center, HealthAlliance Hospital, and Margaretville Hospital. He received his medical degree from Columbia University Vagelos College of Physicians and Surgeons and has been in practice 32 years. Dr. Iwai accepts several types of health insurance, listed below. He is one of 173 doctors at Westchester Medical Center and one of 43 doctors at HealthAlliance Hospital who specialize in Cardiology. He has more than 70 publications and over 500 citings.

Education & Training

  • New York Presbyterian Hospital (Cornell Campus)
    New York Presbyterian Hospital (Cornell Campus)Fellowship, Clinical Cardiac Electrophysiology, 1999 - 2001
  • New York Presbyterian Hospital(Cornell Campus)/Coney Island Hospital
    New York Presbyterian Hospital(Cornell Campus)/Coney Island HospitalFellowship, Cardiovascular Disease, 1997 - 2000
  • New York Presbyterian Hospital (Columbia Campus)
    New York Presbyterian Hospital (Columbia Campus)Residency, Internal Medicine, 1994 - 1997
  • Columbia University Vagelos College of Physicians and Surgeons
    Columbia University Vagelos College of Physicians and SurgeonsClass of 1994

Certifications & Licensure

  • NY State Medical License
    NY State Medical License 1996 - 2027
  • Clinical Cardiac Electrophysiology
    American Board of Internal Medicine Clinical Cardiac Electrophysiology

Awards, Honors, & Recognition

  • New York Magazine: Top Doctors Castle Connolly, 2013-2015, 2018-2020
  • Westchester Magazine: Top Doctors Castle Connolly, 2013-2020
  • America's Top Doctors Castle Connolly

Publications & Presentations

PubMed

Press Mentions

  • The Lead Episode 89: Vasovagal Responses to Human ...
    The Lead Episode 89: Vasovagal Responses to Human ...September 19th, 2025

Professional Memberships

Insurance Accepted

  • BCBS Blue Card PPO
    CIGNA HMO
    CIGNA Open Access
    CIGNA PPO
    Empire BCBS HMO
    Empire BCBS PPO
    GHI PPO
    Great West PPO
    Healthfirst New York
    HIP of New York - Select PPO
    Humana ChoiceCare Network PPO
    MagnaCare PPO
    Multiplan PHCS PPO
    Multiplan PPO
    MVP Healthcare PPO
    Oxford Health Freedom
    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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Dr. Sei Iwai, Dr. Sei Iwai, MD, Dr. S Iwai