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

Mary L Theisen, NP

Individual provider Family Nurse Practitioner · NPI 1396248407

Mary L Theisen, NP is a Family Nurse Practitioner in Milwaukee, Wisconsin. Works from 6 locations. Licensed in Wisconsin.

Licensed in
WI
In the registry since
2018
Specialties on file
3
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

11002 W Park Pl
Milwaukee, WI 53224-3615
Phone: (414) 365-8300
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (5)

  • 110 Lone Oak Ln, Hartford, WI 53027-2600 — (414) 365-8300
  • 8503 75th St Ste B, Kenosha, WI 53142-7620 — (414) 365-8300
  • 13111 N Port Washington Rd, Mequon, WI 53097-2416 — (414) 365-8300
  • 112 E Drexel Ave, Oak Creek, WI 53154-2123 — (414) 365-8300
  • 3232 Pleasant Valley Rd, West Bend, WI 53095-9274 — (414) 365-8300

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 8349-33 (WI)
Nurse Practitioner Taxonomy 363L00000X · Licence 8349-33 (WI)
Registered Nurse Taxonomy 163W00000X · Licence 185282-30 (WI)

Record details

NPI number1396248407
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedMarch 14, 2018
Last updated in NPPESMarch 18, 2026
Certification dateMarch 18, 2026

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