Margaret Andersen, MD | Valhalla, NY | Westchester Health
Margaret Andersen, MD

Margaret Andersen, MD


Lead Physician

Director of Clinical Education

Patient Office

465 Columbus Avenue Suite 370, Valhalla, NY 10595
(914) 769-1600
Fax (914) 769-1610

Specialty Internal Medicine

Hospital Affiliation Northern Westchester Hospital

Education MD – State University of New York at Stony
Brook; MS – New York University

Residency Mount Sinai Hospital

Board Certification Internal Medicine – American Board of Internal Medicine

Awards & Professional Recognition Top Doctor,
Westchester, 2017; Top Doctors, Castle Connolly,
2016 and 2017

Professional Membership American College of Physicians;
Northwell Health Leadership Development Program,


I started our Internal Medicine practice for women with the belief that there was a need for comprehensive, quality healthcare in an environment that is warm, inviting and easily accessible for women. Over the years, I have watched our practice grow and I remain proud of the contribution I have made to our community. I have found that my patients appreciate the time and attention I give them in addressing all their healthcare needs.

Our practice has a team-based approach and our patients get to know the entire staff. I personally designed our office so that the flow is easy and efficient (who knew I could have a second career in interior design). It is not only comfortable and welcoming in its design but its open concept allows for easy interaction between patients and staff.

As a Clinical Assistant Professor, I frequently have medical students coming to my practice. Students are introduced to primary care medicine and learn through observation and one-on-one interactions. Patients participate by volunteering to be interviewed. They find it enjoyable and rewarding to participate in the education of future doctors.

As a member of the Katz Institute for Women’s Health, I am pleased to bring health and wellness events to our community. My goal is to educate and empower women to live healthier lives so they can better care for themselves and their loved ones.

I have lived and worked in this community for more than 15 years and each day when I put on my white coat, I feel grateful to be part of my patients’ lives. To be able to treat, comfort, educate and help patients navigate through difficult times is not only rewarding but is truly a privilege that I am thankful for.