Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Deirdre B. Casey, MSN, RN, AGACNP-BC

Acute Care Nurse Practitioner in Montvale, NJ · enumerated 2015.

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

National Provider Identifier

1720456619

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Registry record

Entity type Individual (Type 1)

Name Deirdre B. Casey

Credential MSN, RN, AGACNP-BC

Sex Female

Practice address 225 Summit Ave, Montvale, NJ, 07645

Phone (201) 775-7370

Enumeration date Sep 9, 2015

Last updated in NPPES Jul 25, 2018

Taxonomy & licenses

363LA2100X Acute Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F430817-1 (NY) Secondary

363LA2100X Acute Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 26NJ00802100 (NJ) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 1720456619 active?

Yes, as of the latest NPPES snapshot, NPI 1720456619 is active (record last updated 2018-07-25).

How do I verify Deirdre Casey's NPI record?

Cross-check NPI 1720456619 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 2018-07-25.