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

Dennis Fitzgerald Jr., RN

Gerontology Registered Nurse in Danbury, CT · enumerated 2026 · practices at Marissa Yubas Mft LLC.

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

National Provider Identifier

1770449647

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Registry record

Entity type Individual (Type 1)
Name Dennis Fitzgerald Jr.
Credential RN
Sex Male
Practice address Danbury, CT, 06810
Enumeration date Jan 5, 2026
Last updated in NPPES Jan 5, 2026

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

Taxonomy & licenses

163WA2000X Administrator Registered Nurse Nursing Service Providers · License 126687 (CT) Secondary
163WG0000X General Practice Registered Nurse Nursing Service Providers · License 126687 (CT) Secondary
163WI0600X Infection Control Registered Nurse Nursing Service Providers · License 126687 (CT) Secondary
163WR0400X Rehabilitation Registered Nurse Nursing Service Providers · License 126687 (CT) Secondary
163WG0600X Gerontology Registered Nurse Nursing Service Providers · License 126687 (CT) 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.

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Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Dennis Fitzgerald?
Dennis Fitzgerald is registered in NPPES with the primary taxonomy of Gerontology Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-05.