Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William C Spanos, MD

Individual provider Otolaryngology Physician · NPI 1184833584

William C Spanos, MD is an Otolaryngology in Sioux Falls, South Dakota. Graduated from University of Louisville School of Medicine in 2001, 25 years ago. Practices with Avera McKennan, a 962-clinician group and accepts Medicare assignment. Licensed in Iowa and South Dakota.

Years since qualifying
25
Trained at
University of Louisville School of Medicine
Licensed in
IA, SD
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1310 W 22nd St Sanford ENT
Sioux Falls, SD 57105-1501
Phone: (605) 328-8200
Fax: (605) 328-8201
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 7326 (SD)
Otolaryngology Physician Taxonomy 207Y00000X · Licence 34781 (IA)

Record details

NPI number1184833584
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 22, 2007
Last updated in NPPESApril 21, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOTOLARYNGOLOGY
Medical schoolUNIVERSITY OF LOUISVILLE SCHOOL OF MEDICINE
Graduated 2001 (25 years in practice)
Group practice Avera McKennan — 962 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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