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

MARY K ELLIS, MD

FAMILY PRACTICE

Graduated: 2009

NPI: 1134447329

Practice Locations (1)

MOUNT SINAI SCHOOL OF MEDICINE

196 MERRICK RD

OCEANSIDE, NY 115721420

5162558400

Source: CMS National Downloadable File, September 2026.

MARY ELLIS, MD | HealthCareAtlasUSA