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

Matthew C. Keifer, MD

Individual provider Internal Medicine Physician · NPI 1033209903

Matthew C. Keifer, MD is an Internal Medicine Physician in Marshfield, Wisconsin. Licensed in Washington and Wisconsin. Registered with an NPI since 2006.

Licensed in
WA, WI
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1000 N Oak Ave
Marshfield, WI 54449-5703
Phone: (715) 387-5511
Fax: (715) 387-5240
Show map & directions

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

Specialties & licences

Preventive Medicine/Occupational Environmental Medicine Physician (primary) Taxonomy 2083P0500X · Licence 55074 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD00020882 (WA)

Record details

NPI number1033209903
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 13, 2006
Last updated in NPPESApril 18, 2011
Mailing address1000 N Oak Ave, Marshfield, WI 54449-5703

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