Individual provider · Type 1 NPI

Tess Gelderloos, MA, BCBA LBA

Behavior Analyst · Great Falls, MT

NPI number 1144626342 Active

Practice location

1601 2nd Ave N Ste 700
Great Falls, MT 59401-3288

Call (406) 205-0452 Map

Fax (406) 545-2276

Mailing address

1240 116th Ave NE Ste 102
Bellevue, WA 98004-3815

Specialties and licenses

TaxonomyCodeLicense
Behavior Analyst Primary 103K00000X1-14-16072 (MT)

Behavior Analyst: A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis…

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About NPI 1144626342

Tess Gelderloos, MA, BCBA LBA's National Provider Identifier is 1144626342, issued on Nov 15, 2014. The primary taxonomy on file is Behavior Analyst (103K00000X), and the practice location is in Great Falls, MT. The record was last updated on Feb 9, 2026.