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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.

NEXTSTEP BEHAVIORAL SERVICES
NPI 1518858497
Behavior Analyst in Merrimack, NH

Active since July 10, 2025
583 DANIEL WEBSTER HWY STE B, MERRIMACK, NH 03054(603) 541-7958 Get Directions Write a Review

NPPES record last updated: November 4, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Nov 4, 2026, Oct 5, 2026, Apr 23, 2026 and 1 more (4 updates tracked since 2025).

About Nextstep Behavioral Services NPPES

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

NEXTSTEP BEHAVIORAL SERVICES (NPI 1518858497) is a healthcare organization registered as a behavior analyst in Merrimack, New Hampshire and active in the NPI registry since July 2025. The organization lists Alicia Varney, Ceo/owner, as its authorized official.

NPPES Registry Identity

NPI1518858497
Entity TypeOrganization
Primary Taxonomy103K00000X
Legal Business NameNEXTSTEP BEHAVIORAL SERVICES
Location Address583 DANIEL WEBSTER HWY STE BMerrimack, NH 03054-3578
Mailing Address583 Daniel Webster Hwy Ste BMerrimack, NH 03054-3578 · (603) 541-7958
Phone(603) 541-7958
Organization SubpartNo
Authorized OfficialAlicia VarneyCeo/owner · (603) 541-7958
Enumeration DateJuly 10, 2025
Last NPPES UpdateNovember 4, 20264 updates tracked since enumeration
NPPES CertifiedNovember 4, 2026
✔ NPI 1518858497 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 ListedBehavior TechnicianTaxonomy 106S00000X
583 DANIEL WEBSTER HWY STE B, Merrimack, NH 03054
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care, WellSense Health Plan.Insurance ›

Other Providers at the Same Location NPPES 20

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

BRITTANY GADOURY
Behavior Technician
583 DANIEL WEBSTER HWY STE B
MERRIMACK, NH 03054
Hillsborough County (603) 541-7958
JOHN LIAKAKOS
Behavior Technician
583 DANIEL WEBSTER HWY STE B
MERRIMACK, NH 03054
Hillsborough County (603) 541-7958
KAELYNN WEBBER
Behavior Technician
583 DANIEL WEBSTER HWY STE B
MERRIMACK, NH 03054
Hillsborough County (603) 541-7958
KATELYNN RICHMOND
Behavior Technician
583 DANIEL WEBSTER HWY STE B
MERRIMACK, NH 03054
Hillsborough County (603) 541-7958
MISS SAMANTHA NEWMAN M ED, BCBA
Behavior Analyst
583 DANIEL WEBSTER HWY STE B
MERRIMACK, NH 03054
Hillsborough County (603) 541-7958
MISS KAYLA DUNN M.ED., BCBA
Behavior Analyst
583 DANIEL WEBSTER HWY STE B
MERRIMACK, NH 03054
Hillsborough County (603) 541-7958
AMANDA CAYES
Behavior Technician
583 DANIEL WEBSTER HWY STE B
MERRIMACK, NH 03054
Hillsborough County (603) 541-7958
HOPE STEVENS
Behavior Technician
583 DANIEL WEBSTER HWY STE B
MERRIMACK, NH 03054
Hillsborough County (603) 541-7958

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 Nextstep Behavioral Services's NPI number?

The NPI number for Nextstep Behavioral Services is 1518858497. It was assigned to this organization in the NPPES registry on July 10, 2025.

Where is Nextstep Behavioral Services located?

Nextstep Behavioral Services is located at 583 Daniel Webster Hwy Ste B, Merrimack, NH 03054. The listed phone number is (603) 541-7958.

What is Nextstep Behavioral Services's specialty?

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

What insurance does Nextstep Behavioral Services accept?

Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and WellSense Health Plan list Nextstep Behavioral Services 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 Nextstep Behavioral Services was last updated on November 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.