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

NIAMH M KEEGAN

MEDICAL ONCOLOGY

Graduated: 2010

Also: INTERNAL MEDICINE

Offers telehealth

NPI: 1811487127

Practice Locations (3)

MEMORIAL SOLID TUMOR GROUP

1275 YORK AVE

NEW YORK, NY 100216007

2126392131

MSK NASSAU

1101 HEMPSTEAD TPKE

UNIONDALE, NY 115531112

2126392000

MSK HARRISON

500 WESTCHESTER AVE

WEST HARRISON, NY 106043200

2126392000

Source: CMS National Downloadable File, September 2026.