Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Daniel John Brennan, DPT

Physical Therapist in Armonk, NY · enumerated 2023.

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

National Provider Identifier

1881471548

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Registry record

Entity type Individual (Type 1)

Name Daniel John Brennan

Credential DPT

Sex Male

Practice address 5 N Greenwich Rd, Armonk, NY, 10504

Phone (914) 202-0700

Fax (914) 462-3444

Enumeration date Sep 14, 2023

Last updated in NPPES Jun 11, 2024

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 051149 (NY) Primary

DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession. About the DPT 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

What specialty is Daniel Brennan?

Daniel Brennan is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Alan Siegel Chiropractor · Armonk, NY NPI 1497826093 Proclinix Sports Physical Therapy Chiropractic Wellness,Pllc Physical Therapist · Armonk, NY NPI 1114132511 Brian Dombal Physical Therapist · Armonk, NY NPI 1962730275 James Cassell Physical Therapist · Armonk, NY NPI 1104170588 Caitlin Policastro Adult Health Nurse Practitioner · Armonk, NY NPI 1003295825 Stefanie Tropea Chiropractor · Armonk, NY NPI 1821629460 Katalin Simon Massage Therapist · Armonk, NY NPI 1629601133 Gina Vignogna Massage Therapist · Armonk, NY NPI 1043817307

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-11.