Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Allison Marie Souza, NP

Family Nurse Practitioner in Lowell, MA · enumerated 2019.

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

National Provider Identifier

1851947931

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Registry record

Entity type Individual (Type 1)

Name Allison Marie Souza

Credential NP

Sex Female

Practice address 161 Jackson St, Lowell, MA, 01852

Phone (978) 937-9700

Enumeration date Aug 14, 2019

Last updated in NPPES Oct 30, 2020

Taxonomy & licenses

363LP2300X Primary Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN2295137 (MA) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN2295137 (MA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

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

Is NPI 1851947931 active?

Yes, as of the latest NPPES snapshot, NPI 1851947931 is active (record last updated 2020-10-30).

How do I verify Allison Souza's NPI record?

Cross-check NPI 1851947931 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-30.