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

Dr. Nancy K Lonsdorf, MD

Individual provider General Practice Physician · NPI 1689792939

Dr. Nancy K Lonsdorf, MD is a General Practice Physician in Fairfield, Iowa. Licensed in Iowa. Registered with an NPI since 2007.

Licensed in
IA
In the registry since
2007
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

1100 N 4th St Ste 211
Fairfield, IA 52556-2169
Phone: (641) 469-3174
Fax: (877) 603-3125
Show map & directions

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

Specialties & licences

General Practice Physician (primary) Taxonomy 208D00000X · Licence 25776 (IA)

Record details

NPI number1689792939
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 26, 2007
Last updated in NPPESDecember 30, 2019
Certification dateDecember 30, 2019
Mailing addressPo Box 1480, Fairfield, IA 52556-0025

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