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 / SD

LOUANN L STREFF, PA

PHYSICIAN ASSISTANT

Graduated: 1990

NPI: 1740269265

Practice Locations (3)

SANFORD MEDICAL CENTER

211 N COMMERCIAL ST, SUITE B

CLARK, SD 572251532

6055323676

SANFORD MEDICAL CENTER

4405 E 26TH ST

SIOUX FALLS, SD 571034187

6053322883

SANFORD MEDICAL CENTER

901 4TH ST NW

WATERTOWN, SD 572011558

6058868471

Source: CMS National Downloadable File, September 2026.