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

Mr. Dennis Frank Heinonen, LMSW

Individual provider Clinical Social Worker · NPI 1710921820

Mr. Dennis Frank Heinonen, LMSW is a Clinical Social Worker in Allegan, Michigan. Licensed in Michigan. Registered with an NPI since 2006.

Licensed in
MI
In the registry since
2006
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 Partly verified

Some contact details are missing from the federal record.

C/o Accmhs Po Drawer 130
Allegan, MI 49010-0130
Phone: (269) 673-6617
Fax: (269) 673-2738
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 6801065093 (MI)

Record details

NPI number1710921820
Entity typeIndividual (Type 1)
GenderMale
Credentials LMSW
Sole proprietorNo
NPI enumeratedJune 16, 2006
Last updated in NPPESJuly 13, 2026

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