Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Maxwell Ehrnfelt, LICSW

Social Worker in Northampton, MA · enumerated 2020 · practices at Leaves of Change Counseling LLC.

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

National Provider Identifier

1407463789

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Registry record

Entity type Individual (Type 1)

Name Maxwell Ehrnfelt

Credential LICSW

Sex Male

Practice address Northampton, MA, 01060

Phone (413) 624-4325

Enumeration date Sep 30, 2020

Last updated in NPPES Sep 5, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License LICSW1121141 (MA) Primary

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 does Maxwell Ehrnfelt practice?

The practice location on file with NPPES is in Northampton, MA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Maxwell Ehrnfelt?

The National Provider Identifier (NPI) for Maxwell Ehrnfelt is 1407463789, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-05.