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

Argelia Diaz, NP

Adult Health Nurse Practitioner in Bay Shore, NY · enumerated 2012.

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

National Provider Identifier

1619229820

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Registry record

Entity type Individual (Type 1)

Name Argelia Diaz

Credential NP

Sex Female

Practice address Bay Shore, NY, 11706

Phone (631) 518-6040

Fax (631) 518-6051

Enumeration date Oct 11, 2012

Last updated in NPPES Jan 7, 2021

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

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F306138-1 (NY) 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 Argelia Diaz's NPI record?

Cross-check NPI 1619229820 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1619229820 active?

Yes, as of the latest NPPES snapshot, NPI 1619229820 is active (record last updated 2021-01-07).

Other providers at this practice address

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Karen Duran Family Nurse Practitioner · Bay Shore, NY NPI 1750050308

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-07.