KATHERINE GAGNE BCBA, LBA
NPI 1255835773
Behavior Analyst in Saint Louis, MO

Q: What is Katherine Gagne's NPI number?

The NPI number for Katherine Gagne is 1255835773. It was assigned to this individual provider in the NPPES registry on March 20, 2018.

Q: What is Katherine Gagne's specialty?

The primary specialty registered for this NPI is Behavior Analyst with taxonomy code 103K00000X.

Q: When was this NPI record last updated?

The NPPES record for Katherine Gagne was last updated on November 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 20, 2018

12430 TESSON FERRY RD, #102, SAINT LOUIS, MO 63128(855) 832-6727(772) 675-9100 Get Directions Write a Review

NPPES record last updated: November 4, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 4, 2025, May 17, 2023, Mar 20, 2018 (3 updates tracked since 2018).

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About Katherine Gagne Bcba, Lba NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATHERINE GAGNE BCBA, LBA (NPI 1255835773) is an individual behavior analyst provider in Saint Louis, Missouri, licensed in Virginia (0133002995) and active in the NPI registry since March 2018.

NPPES Registry Identity

NPI1255835773

Entity TypeIndividualFemale

Primary Taxonomy103K00000X

Provider Legal NameKATHERINE GAGNECredential: BCBA, LBA

Location Address12430 TESSON FERRY RD, #102Saint Louis, MO 63128-2702

Mailing Address12430 Tesson Ferry Rd, #102Saint Louis, MO 63128-2702 · (703) 679-8418

Phone(855) 832-6727

Fax(772) 675-9100

Sole ProprietorNo

Enumeration DateMarch 20, 2018

Last NPPES UpdateNovember 4, 20253 updates tracked since enumeration

NPPES CertifiedNovember 4, 2025

✔ NPI 1255835773 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyBehavior AnalystBehavioral Health & Social Service Providers

Taxonomy Code103K00000X

Licenses✔ Licensed in VA · 0133002995✔ Licensed in MO · 2025042811

Definition

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. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.

Also ListedBehavior TechnicianTaxonomy 106S00000X

12430 TESSON FERRY RD, Saint Louis, MO 63128

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Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MISS ERIN PATRICIA TAYLOR M.S., CCC-SLP

Speech-Language Pathologist

12430 TESSON FERRY RD, SUITE 352
SAINT LOUIS, MO 63128

St. Louis County (866) 495-5437

MRS. JESSICA LYNNE JOHNSON OTR,L

Occupational Therapist (Pediatrics)

12430 TESSON FERRY RD, SUITE 352
SAINT LOUIS, MO 63128

St. Louis County (866) 495-5437

MRS. KAREN SUE SCHMIEDER M.S., CCC-SLP

Speech-Language Pathologist

12430 TESSON FERRY RD, SUITE 352
SAINT LOUIS, MO 63128

St. Louis County (186) 649-5543

KATHERINE EILEEN KELAHAN

Occupational Therapist (Pediatrics)

12430 TESSON FERRY RD, SUITE 352
SAINT LOUIS, MO 63128

St. Louis County (186) 649-5543

MS. LAURA ELLEN GREEN

Speech-Language Pathologist

12430 TESSON FERRY RD, STE 352
SAINT LOUIS, MO 63128

St. Louis County (866) 495-5437

MRS. JAMIE THERESA FESSLER MPT

Physical Therapist (Pediatrics)

12430 TESSON FERRY RD, SUITE 352
SAINT LOUIS, MO 63128

St. Louis County (186) 649-5543

JILL ELIZABETH DAY M.S.

Speech-Language Pathologist

12430 TESSON FERRY RD, SUITE 352
SAINT LOUIS, MO 63128

St. Louis County (314) 374-0184

HANA DWAIK

Behavior Technician

12430 TESSON FERRY RD
SAINT LOUIS, MO 63128

St. Louis County (855) 832-6727

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Katherine Gagne's NPI number?

The NPI number for Katherine Gagne is 1255835773. It was assigned to this individual provider in the NPPES registry on March 20, 2018.

Where is Katherine Gagne located?

Katherine Gagne practices at 12430 Tesson Ferry Rd #102, Saint Louis, MO 63128. The listed phone number is (855) 832-6727.

What is Katherine Gagne's specialty?

The primary specialty registered for this NPI is Behavior Analyst with taxonomy code 103K00000X.

When was this NPI record last updated?

The NPPES record for Katherine Gagne was last updated on November 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.