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

Dr. Mark W Williams, MD

Individual provider Family Medicine Physician · NPI 1326198623

Dr. Mark W Williams, MD is a Family Medicine Physician in Eau Claire, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2007.

Licensed in
WI
In the registry since
2007
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

105 Garfield Ave
Eau Claire, WI 54701-4811 Not confirmed with CMS for 19 years — call before visiting
Phone: (715) 836-4311
Fax: (715) 836-5979
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 28121-020 (WI)

Record details

NPI number1326198623
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 11, 2007
Last updated in NPPESJuly 8, 2007

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