Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Merrimack Behavioral Partners LLC

Behavior Analyst in Haverhill, MA · enumerated 2020 · authorized official Michael Waweru, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1619571056

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Registry record

Entity type Organization (Type 2)

Legal business name Merrimack Behavioral Partners LLC

Practice address 181 Crosby Street Ext, Haverhill, MA, 01830

Phone (978) 268-2788

Enumeration date Nov 25, 2020

Last updated in NPPES Dec 11, 2020

Taxonomy & classification

103K00000X Behavior Analyst Behavioral Health & Social Service Providers Primary

251S00000X Community/Behavioral Health Agency Agencies Secondary

Authorized official

Name Michael Waweru

Title Owner

Phone (508) 335-4690

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Merrimack Behavioral Partners LLC located?

The practice location on file with NPPES is in Haverhill, MA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-12-11. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-11.