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

William L Nelson, MD

Individual provider Internal Medicine Physician · NPI 1154316396

William L Nelson, MD is an Internal Medicine Physician in Neenah, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2005.

Licensed in
WI
In the registry since
2005
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

101 Main St
Neenah, WI 54956-2570
Phone: (920) 727-4220
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 20629 (WI)

Record details

NPI number1154316396
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 14, 2005
Last updated in NPPESNovember 6, 2012
Mailing address101 Main St, Neenah, WI 54956-2570

Other providers in Neenah