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

Mary Christine Grassl, REGISTEREDNURSE

Individual provider Registered Nurse · NPI 1558068429

Mary Christine Grassl, REGISTEREDNURSE is a Registered Nurse in West Allis, Wisconsin. Practices as a sole proprietor and works from 3 locations. Licensed in Wisconsin.

Licensed in
WI
In the registry since
2023

Practice location Address checks out

2814 S 108th St
West Allis, WI 53227-3224
Phone: (414) 885-3525
Show map & directions

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

Additional practice locations (2)

  • 23 W Scott St, Fond Du Lac, WI 54935-2342 — (920) 926-0101
  • 1333 College Ave Ste M1, South Milwaukee, WI 53172-1150 — (414) 775-2500

Specialties & licences

Registered Nurse (primary) Taxonomy 163W00000X · Licence 91223 (WI)

Record details

NPI number1558068429
Entity typeIndividual (Type 1)
GenderFemale
Credentials REGISTEREDNURSE
Sole proprietorYes
NPI enumeratedFebruary 10, 2023
Last updated in NPPESJuly 27, 2023
Certification dateJuly 27, 2023

Other providers in West Allis