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

Mark Alan De Ruyter, LMSW

Individual provider Social Worker · NPI 1427482199

Mark Alan De Ruyter, LMSW is a Social Worker in Spencer, Iowa. Licensed in Iowa. Registered with an NPI since 2013.

Licensed in
IA
In the registry since
2013
What do these letters mean?
LMSW — Licensed Master Social Worker
A master's-level social worker, usually practising under supervision.

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Practice location Address checks out

116 E 11th St
Spencer, IA 51301
Phone: (712) 264-6048
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 02160 (IA)

Record details

NPI number1427482199
Entity typeIndividual (Type 1)
GenderMale
Credentials LMSW
Sole proprietorNo
NPI enumeratedAugust 29, 2013
Last updated in NPPESAugust 29, 2013

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