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

Mary Catherine Denny, PHD

Individual provider Psychologist · NPI 1588758155

Mary Catherine Denny, PHD is a Psychologist in Seattle, Washington. Licensed in Washington. Registered with an NPI since 2006.

Licensed in
WA
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

564 NE Ravenna Blvd
Seattle, WA 98115
Phone: (206) 527-2266
Fax: (206) 527-1009
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PY00001515 (WA)

Record details

NPI number1588758155
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedOctober 3, 2006
Last updated in NPPESJuly 8, 2007

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