Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Guirlene Jean-Simon, NP

Adult Health Nurse Practitioner in Boston, MA · enumerated 2009.

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

National Provider Identifier

1326273442

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Registry record

Entity type Individual (Type 1)

Name Guirlene Jean-Simon

Credential NP

Sex Female

Practice address 1575 Blue Hill Ave, Boston, MA, 02126

Phone (617) 898-9042

Fax (617) 296-0061

Enumeration date May 19, 2009

Last updated in NPPES Mar 29, 2016

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN213149 (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

How do I verify Guirlene Jean-Simon's NPI record?

Cross-check NPI 1326273442 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1326273442 active?

Yes, as of the latest NPPES snapshot, NPI 1326273442 is active (record last updated 2016-03-29).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-29.