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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

EVAN PFEIFER
NPI 1124741988
Behavior Analyst in Gillette, WY

Active since September 26, 2022
1300 W 4TH ST, GILLETTE, WY 82716(888) 924-2366(888) 263-5638 Get Directions Write a Review

NPPES record last updated: August 12, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 12, 2026, Mar 19, 2026, Sep 26, 2022 (3 updates tracked since 2022).

About Evan Pfeifer NPPES

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

EVAN PFEIFER (NPI 1124741988) is an individual behavior analyst provider in Gillette, Wyoming and active in the NPI registry since September 2022.

NPPES Registry Identity

NPI1124741988
Entity TypeIndividualMale
Primary Taxonomy103K00000X
Provider Legal NameEVAN PFEIFER
Location Address1300 W 4TH STGillette, WY 82716-3330
Mailing Address2601 36th Ave S Apt 208Fargo, ND 58104-8820 · (888) 924-2366 · Fax (888) 263-5638
Phone(888) 924-2366
Fax(888) 263-5638
Sole ProprietorNo
Enumeration DateSeptember 26, 2022
Last NPPES UpdateAugust 12, 20263 updates tracked since enumeration
NPPES CertifiedAugust 12, 2026
✔ NPI 1124741988 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.
1300 W 4TH ST, Gillette, WY 82716
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Other Providers at the Same Location NPPES 14

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

AMANDA GOSSENS
Behavior Technician
1300 W 4TH ST
GILLETTE, WY 82716
Campbell County (888) 924-2366
DR. LINDA KAMIL ABUJABER-AMMARI MD
Pediatrics
1300 W 4TH ST
GILLETTE, WY 82716
Campbell County (307) 686-4900
SYDNEY COLSON
Behavior Technician
1300 W 4TH ST
GILLETTE, WY 82716
Campbell County (888) 924-2366
LAUREN BELL
Behavior Technician
1300 W 4TH ST
GILLETTE, WY 82716
Campbell County (888) 924-2366
JOANNA PEREZ RBT
Behavior Technician
1300 W 4TH ST
GILLETTE, WY 82716
Campbell County (888) 924-2366
MADISON DRISKILL
Behavior Technician
1300 W 4TH ST
GILLETTE, WY 82716
Campbell County (888) 924-2366
JACQUELINE MORAN
Behavior Analyst
1300 W 4TH ST
GILLETTE, WY 82716
Campbell County (888) 924-2366
ABC PEDIATRICS LLC
Clinic/Center (Rural Health)
1300 W 4TH ST
GILLETTE, WY 82716
Campbell County (307) 686-4900

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 Evan Pfeifer's NPI number?

The NPI number for Evan Pfeifer is 1124741988. It was assigned to this individual provider in the NPPES registry on September 26, 2022.

Where is Evan Pfeifer located?

Evan Pfeifer practices at 1300 W 4th St, Gillette, WY 82716. The listed phone number is (888) 924-2366.

What is Evan Pfeifer'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 Evan Pfeifer was last updated on August 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.