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

Margaret M Grenisen, MD

Individual provider Family Medicine Physician · NPI 1447231766

Margaret M Grenisen, MD is a Family Medicine Physician in LA Crosse, 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.

See every abbreviation used in this directory →

Practice location Address checks out

800 W Ave S
LA Crosse, WI 54601-8806
Phone: (608) 392-9891
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 32890 (WI)

Record details

NPI number1447231766
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 14, 2005
Last updated in NPPESJune 15, 2026
Certification dateJune 15, 2026

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