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

Individual provider Clinical Social Worker · NPI 1487125738

John Mark Custer, LCSW is a Clinical Social Worker in Portland, Oregon. Practices as a sole proprietor. Licensed in Oregon.

Licensed in
OR
In the registry since
2018
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

3550 N Interstate Ave
Portland, OR 97227-1196
Phone: (503) 388-0042
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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 1462 (OR)

Record details

NPI number1487125738
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedDecember 16, 2018
Last updated in NPPESDecember 16, 2018

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