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
Mailing address2023 Linn Dr, Owatonna, MN 55060-4212

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