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 / CA

MICHAEL S GREENFIELD, MD

ENDOCRINOLOGY

Medical school: HARVARD MEDICAL SCHOOL

Graduated: 1974

Also: INTERNAL MEDICINE

Offers telehealth

NPI: 1295873685

Practice Locations (2)

2500 HOSPITAL DR, BUILDING 14

Mountain View, CA 940404106

2500 HOSPITAL DR, SUITE 14

MOUNTAIN VIEW, CA 940404106

6509657500

Source: CMS National Downloadable File, September 2026.

MICHAEL GREENFIELD, MD | HealthCareAtlasUSA