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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

JENNIFER O TESSIER-WILLIFORD BCBA
NPI 1326705377
Behavior Analyst in West Springfield, MA

Active since November 24, 2021
900 RIVERDALE STREET, UNIT 286, WEST SPRINGFIELD, MA 01089(413) 563-1067 Get Directions Write a Review

NPPES record last updated: July 6, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 6, 2026, Mar 11, 2026, Jan 15, 2026 and 2 more (5 updates tracked since 2021).

About Jennifer O Tessier-williford Bcba NPPES

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

JENNIFER O TESSIER-WILLIFORD BCBA (NPI 1326705377) is an individual behavior analyst provider in West Springfield, Massachusetts and active in the NPI registry since November 2021.

NPPES Registry Identity

NPI1326705377
Entity TypeIndividualFemale
Primary Taxonomy103K00000X
Provider Legal NameJENNIFER O TESSIER-WILLIFORDCredential: BCBA
Location Address900 RIVERDALE STREET, UNIT 286West Springfield, MA 01089-4900
Mailing Address7108 S Kanner HwyStuart, FL 34997-7462
Phone(413) 563-1067
Sole ProprietorNo
Enumeration DateNovember 24, 2021
Last NPPES UpdateJuly 6, 20265 updates tracked since enumeration
NPPES CertifiedJuly 6, 2026
✔ NPI 1326705377 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ 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.
Also ListedCounselorTaxonomy 101Y00000X
900 RIVERDALE STREET, West Springfield, MA 01089
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Other Names 1

Former Name (1)Jennifer O Tessier

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Other Providers at the Same Location NPPES 8

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

AMBER M LYDON BCBA
Behavior Analyst
900 RIVERDALE STREET, UNIT 286
WEST SPRINGFIELD, MA 01089
Hampden County (855) 832-6727
DANYELL LOUISE LINDBO BCBA
Behavior Analyst
900 RIVERDALE STREET, UNIT 286
WEST SPRINGFIELD, MA 01089
Hampden County (855) 832-6727
MS. REBECCA CACHAT
Behavior Analyst
900 RIVERDALE STREET, UNIT 286
WEST SPRINGFIELD, MA 01089
Hampden County (855) 832-6727
JAMIE CHRISTINE ALONZO
Behavior Analyst
900 RIVERDALE STREET, UNIT 286
WEST SPRINGFIELD, MA 01089
Hampden County (314) 780-1556
KAROL NAJAY MEJIA GERMAN
Behavior Technician
900 RIVERDALE STREET, 301 EDGEWATER PL
WEST SPRINGFIELD, MA 01089
Hampden County (305) 504-0375
JENNIFER STRANGE BCBA
Behavior Analyst
900 RIVERDALE STREET, UNIT 286
WEST SPRINGFIELD, MA 01089
Hampden County (518) 944-4419
CLAIRE A POLLAK BCBA, LABA
Behavior Analyst
900 RIVERDALE STREET, UNIT 286
WEST SPRINGFIELD, MA 01089
Hampden County (855) 832-6727
MICHELLE KOCH BCBA
Behavior Analyst
900 RIVERDALE STREET, UNIT 286
WEST SPRINGFIELD, MA 01089
Hampden 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 Jennifer Tessier-williford's NPI number?

The NPI number for Jennifer Tessier-williford is 1326705377. It was assigned to this individual provider in the NPPES registry on November 24, 2021. The provider is also known as Jennifer O Tessier.

Where is Jennifer Tessier-williford located?

Jennifer Tessier-williford practices at 900 Riverdale Street Unit 286, West Springfield, MA 01089. The listed phone number is (413) 563-1067.

What is Jennifer Tessier-williford's specialty?

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

What insurance does Jennifer Tessier-williford accept?

Health plans from Providence Health Plan list Jennifer Tessier-williford as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Jennifer Tessier-williford was last updated on July 6, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.