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

Letha Gillisse

Individual provider Behavior Analyst · NPI 1255808606

Letha Gillisse is a Behavior Analyst in Bellevue, Washington. Registered with an NPI since 2018.

In the registry since
2018

Practice location Address checks out

1800 112th Ave NE Ste 260E
Bellevue, WA 98004-2937
Phone: (206) 388-0544
Show map & directions

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

Specialties & licences

Behavior Analyst (primary) Taxonomy 103K00000X

Record details

NPI number1255808606
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedOctober 24, 2018
Last updated in NPPESOctober 24, 2018

Other providers in Bellevue