Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Danielle D'Alleva-Byrne, PA

Physician Assistant in Holbrook, NY · enumerated 2006.

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

National Provider Identifier

1801966015

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Registry record

Entity type Individual (Type 1)

Name Danielle D'Alleva-Byrne

Credential PA

Sex Female

Practice address 270 Union Ave, Holbrook, NY, 11741

Phone (631) 588-7973

Fax (631) 471-3039

Enumeration date Nov 8, 2006

Last updated in NPPES Mar 8, 2012

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 009506 (NY) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential

Other identifiers

Identifier	Type	State	Issuer
03296013	Medicaid	NY	-

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 Danielle D'Alleva-Byrne practice?

The practice location on file with NPPES is in Holbrook, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Danielle D'Alleva-Byrne?

The National Provider Identifier (NPI) for Danielle D'Alleva-Byrne is 1801966015, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-08.