Tess Gelderloos, MA, BCBA LBA
NPI 1144626342 · Behavior Analyst · Great Falls, MT
Tess Gelderloos, MA, BCBA LBA is a Behavior Analyst provider in Great Falls, MT (NPI 1144626342).
Provider details
- NPI number
- 1144626342
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Credential
- MA, BCBA LBA
- Sex
- Female
- Sole proprietor
- No
- License
- 1-14-16072 (MT)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-11-15
- Last updated
- 2026-02-09
- Certified
- 2026-02-09
Frequently asked questions
- What is Tess Gelderloos's NPI number?
- Tess Gelderloos's National Provider Identifier (NPI) is 1144626342, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tess Gelderloos's specialty?
- Tess Gelderloos is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Tess Gelderloos located?
- Tess Gelderloos's practice location on file with NPPES is 1601 2nd Ave N Ste 700, Great Falls, MT 59401-3288.
- What is Tess Gelderloos's phone number?
- The practice phone number listed in the NPPES registry for Tess Gelderloos is (406) 205-0452.
- Is Tess Gelderloos's NPI active?
- Yes — Tess Gelderloos's NPI (1144626342) is active in the NPPES registry as of the last update on 2026-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.