image description

Margaret Andersen, MD

Dr. Andersen is a primary care physician who specializes in the care of women. She is a board certified internist who provides quality, compassionate, comprehensive care for her patients.

Dr. Andersen received her medical degree from SUNY at Stony Brook and completed her internship and residency in internal medicine at Mount Sinai Hospital. During her training, she was named Intern of the Year and received the prestigious Richard Gorlin Humanitarian Award.

Currently, Dr. Andersen is a Clinical Assistant Professor for New York Medical College and is actively involved with the education of medical students.


  • Internal Medicine


  • Undergraduate School

    State University of New York at Buffalo
  • Graduate School

    New York University
  • Medical School

    State University of New York at Stony Brook
  • Internship & Residency

    Mount Sinai Hospital

  • Appointments

    Northern Westchester Hospital
    New York Medical College

Board Certifications

American Board of Internal Medicine

Professional Organizations

  • American College of Physicians
    Medical Society of the State of New York

Please call the number below to schedule an appointment: (914) 769-1600


465 Columbus Avenue
Suite 370

Valhalla, NY 10595
Fax: (914) 769-1610

Office Hours
Monday 8:30am – 4:30pm
Tuesday 8:30am – 7:00pm
Wednesday 8:30am – 4:30pm
Thursday 8:30am – 4:30pm
Friday 8:30am – 4:30pm
Saturday 9:00am – 2:00pm