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 / WI

SARA J RIEGERT, MD

OBSTETRICS/GYNECOLOGY

Medical school: UNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE

Graduated: 2001

NPI: 1013908664

Practice Locations (2)

AGNESIAN HEALTHCARE INC

420 E DIVISION ST

FOND DU LAC, WI 549354560

9209237400

AGNESIAN HEALTHCARE INC

430 E DIVISION ST

FOND DU LAC, WI 549354560

9209292300

Source: CMS National Downloadable File, September 2026.

SARA RIEGERT, MD | HealthCareAtlasUSA