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

STEPHEN T SIGMUND, MD

INTERNAL MEDICINE

Medical school: STATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE

Graduated: 1990

NPI: 1700846607

Practice Locations (2)

DAVID B. HAMMER

1051 LAS TABLAS RD

TEMPLETON, CA 934655603

1310 LAS TABLAS RD, SUITE 102

TEMPLETON, CA 934659746

8057340729

Source: CMS National Downloadable File, September 2026.

STEPHEN SIGMUND, MD | HealthCareAtlasUSA