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

MICHELLE S GRENNAN

CLINICAL PSYCHOLOGIST

Graduated: 2015

Offers telehealth

NPI: 1922544477

Practice Locations (1)

EPIC LONG ISLAND

1500 HEMPSTEAD TPKE

EAST MEADOW, NY 115541551

5167397733420

Source: CMS National Downloadable File, September 2026.

MICHELLE GRENNAN | HealthCareAtlasUSA