NPI Portal NPI Lookup & Verification

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

Isabella Polselli

Registered Nurse in Northborough, MA · enumerated 2024.

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

National Provider Identifier

1558110171

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Isabella Polselli
Sex Female
Practice address Northborough, MA, 01532
Enumeration date May 15, 2024
Last updated in NPPES May 15, 2024

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN2334351 (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 Isabella Polselli practice?
The practice location on file with NPPES is in Northborough, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Isabella Polselli?
The National Provider Identifier (NPI) for Isabella Polselli is 1558110171, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-15.