Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

KEYLEY KAY LEISCHNER
NPI 1639094436
Behavior Analyst in Billings, MT

Q: What is Keyley Leischner's NPI number?

The NPI number for Keyley Leischner is 1639094436. It was assigned to this individual provider in the NPPES registry on August 11, 2026.

Q: What is Keyley Leischner'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 Keyley Leischner was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days 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 August 11, 2026

2595 OVERLAND AVE, BILLINGS, MT 59102(406) 901-5000(406) 552-1482 Get Directions Write a Review

NPPES record added: August 11, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Keyley Kay Leischner NPPES

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

KEYLEY KAY LEISCHNER (NPI 1639094436) is an individual behavior analyst provider in Billings, Montana and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1639094436

Entity TypeIndividualFemale

Primary Taxonomy103K00000X

Provider Legal NameKEYLEY KAY LEISCHNER

Location Address2595 OVERLAND AVEBillings, MT 59102-7427

Mailing Address2260 Saint Johns Ave Apt G21Billings, MT 59102-4795 · (406) 901-5000 · Fax (406) 552-1482

Phone(406) 901-5000

Fax(406) 552-1482

Sole ProprietorNo

Enumeration DateAugust 11, 2026

NPPES CertifiedAugust 11, 2026

✔ NPI 1639094436 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyBehavior AnalystBehavioral Health & Social Service Providers

Taxonomy Code103K00000X

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.

2595 OVERLAND AVE, Billings, MT 59102

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Other Providers at the Same Location NPPES

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

URAIAH V RAMIREZ

Behavior Technician

2595 OVERLAND AVE
BILLINGS, MT 59102

Yellowstone County (406) 901-5000

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 Keyley Leischner's NPI number?

The NPI number for Keyley Leischner is 1639094436. It was assigned to this individual provider in the NPPES registry on August 11, 2026.

Where is Keyley Leischner located?

Keyley Leischner practices at 2595 Overland Ave, Billings, MT 59102. The listed phone number is (406) 901-5000.

What is Keyley Leischner'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 Keyley Leischner was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days 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.