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

DIANE M SIXSMITH, MD

EMERGENCY MEDICINE

Medical school: UNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE

Graduated: 1973

NPI: 1043237779

Practice Locations (1)

OPTUM URGENT CARE PLLC

254 -21 NASSAU BLVD

LITTLE NECK, NY 11362

9175631660

Source: CMS National Downloadable File, September 2026.

DIANE SIXSMITH, MD | HealthCareAtlasUSA