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

Individual provider Mental Health Counselor · NPI 1518146612

Duncan Hollomon, PHD is a Mental Health Counselor in Seattle, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2007
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

7020 18th Ave SW
Seattle, WA 98106-1629
Phone: (206) 419-7015
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence LH00008547 (WA)

Record details

NPI number1518146612
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedOctober 25, 2007
Last updated in NPPESOctober 25, 2007

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