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

Mary Katherine Longenecker

Individual provider Behavior Analyst · NPI 1013360221

Mary Katherine Longenecker is a Behavior Analyst in Federal Way, Washington. Practices as a sole proprietor. Registered with an NPI since 2016.

In the registry since
2016

Practice location Address checks out

31065 9th Ave S
Federal Way, WA 98003-4770
Phone: (253) 217-1289
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Behavior Analyst (primary) Taxonomy 103K00000X

Record details

NPI number1013360221
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedJuly 22, 2016
Last updated in NPPESJuly 22, 2016
Mailing address31065 9th Ave S, Federal Way, WA 98003-4770

Other providers in Federal Way