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

William S Koller, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1215977947

William S Koller, MD is an Obstetrics & Gynecology Physician in Madison, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2006.

Licensed in
WI
In the registry since
2006
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

1821 S Stoughton Rd Dean Medical Ctr
Madison, WI 53716-2257
Phone: (608) 260-6000
Fax: (608) 260-6939
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 19201-020 (WI)

Record details

NPI number1215977947
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 8, 2006
Last updated in NPPESSeptember 7, 2010

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