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

Ralph D Wertwijn, MD

Individual provider Internal Medicine Physician · NPI 1538129283

Ralph D Wertwijn, MD is an Internal Medicine Physician in Owatonna, Minnesota. Licensed in Minnesota. Registered with an NPI since 2006.

Licensed in
MN
In the registry since
2006
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

2023 Linn Dr
Owatonna, MN 55060-4212
Phone: (507) 455-0067
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 30544 (MN)

Record details

NPI number1538129283
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 26, 2006
Last updated in NPPESSeptember 22, 2010

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