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 / MA

HELEN RYAN, MD

HEMATOLOGY/ONCOLOGY

Medical school: TUFTS UNIVERSITY SCHOOL OF MEDICINE

Graduated: 1998

NPI: 1477575793

Practice Locations (4)

DANA-FARBER CANCER INSTITUTE, INC.

450 BROOKLINE AVE

BOSTON, MA 022155418

MAINE CENTER FOR CANCER MEDICINE AND BLOOD DISORDERS PA

2 INDEPENDENCE DR

KENNEBUNK, ME 040436078

2073033300

CENTRAL MAINE MEDICAL CENTER

17 HIGH ST

LEWISTON, ME 042407614

CENTRAL MAINE MEDICAL CENTER

300 MAIN ST

LEWISTON, ME 042407027

2077533900

Source: CMS National Downloadable File, September 2026.