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

WILLIAM C SPANOS, MD

OTOLARYNGOLOGY

Medical school: UNIVERSITY OF LOUISVILLE SCHOOL OF MEDICINE

Graduated: 2001

NPI: 1184833584

Practice Locations (5)

AVERA MCKENNAN

901 E VIRGIL AVE

MILBANK, SD 572522124

6054324538

AVERA MCKENNAN

1000 E 23RD ST

SIOUX FALLS, SD 571052114

AVERA MCKENNAN

1325 S CLIFF AVE

SIOUX FALLS, SD 571051007

AVERA MCKENNAN

1325 S CLIFF AVE, RADIOLOGY

SIOUX FALLS, SD 571051007

6053224878

AVERA MCKENNAN

1417 S CLIFF AVE, SUITE 300

SIOUX FALLS, SD 571051062

6055043000

Source: CMS National Downloadable File, September 2026.