Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Isaac L Larson, RC1

Individual provider Mental Health Counselor · NPI 1144368655

Isaac L Larson, RC1 is a Mental Health Counselor in Portland, Oregon. Practices as a sole proprietor. Licensed in Oregon.

Licensed in
OR
In the registry since
2007
Specialties on file
2
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Practice location Address checks out

5023 NE Killingsworth St
Portland, OR 97218-1915
Phone: (503) 402-8117
Fax: (503) 284-6585
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Companion (primary) Taxonomy 372600000X
Mental Health Counselor Taxonomy 101YM0800X (OR)

Record details

NPI number1144368655
Entity typeIndividual (Type 1)
GenderMale
Credentials RC1
Sole proprietorYes
NPI enumeratedFebruary 5, 2007
Last updated in NPPESSeptember 11, 2025

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