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

KAREN J SUMNER, MD

OBSTETRICS/GYNECOLOGY

Medical school: RUTGERS NEW JERSEY MEDICAL SCHOOL

Graduated: 1995

NPI: 1740360205

Practice Locations (1)

PERMANENTE MEDICAL GROUP INC

901 NEVIN AVE

RICHMOND, CA 948013143

5103071500

Source: CMS National Downloadable File, September 2026.

KAREN SUMNER, MD | HealthCareAtlasUSA