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

Tania M Hassler, MD

Individual provider Hospitalist Physician · NPI 1225012057

Tania M Hassler, MD is a Hospitalist Physician in Green Bay, Wisconsin. Licensed in Minnesota and Wisconsin. Registered with an NPI since 2005.

Licensed in
MN, WI
In the registry since
2005
Specialties on file
2
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

744 S Webster Ave
Green Bay, WI 54301-3505
Phone: (920) 433-3622
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 45819 (WI)
Hospitalist Physician Taxonomy 208M00000X · Licence 57570 (MN)

Record details

NPI number1225012057
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 5, 2005
Last updated in NPPESSeptember 8, 2025
Certification dateSeptember 8, 2025

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