HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / NY

ELLEN K RITCHIE, MD

MEDICAL ONCOLOGY

Medical school: COLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS

Graduated: 1997

Also: HEMATOLOGY

Offers telehealth

NPI: 1003996653

Practice Locations (2)

WEILL MEDICAL COLLEGE OF CORNELL

520 E 70TH ST

NEW YORK, NY 100219800

6469622012

WEILL MEDICAL COLLEGE OF CORNELL

525 E 68TH ST

NEW YORK, NY 100654870

6469622012

Source: CMS National Downloadable File, September 2026.