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

MARIO S GRASSO, MD

ANESTHESIOLOGY

Medical school: UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL

Graduated: 1990

NPI: 1174639025

Practice Locations (1)

LAHEY CLINIC INC

41 MALL RD

BURLINGTON, MA 018050001

7817448085

Source: CMS National Downloadable File, September 2026.