Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Ariellen Calivas, PT

Physical Therapist in Melville, NY · enumerated 2007.

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

National Provider Identifier

1174646996

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Registry record

Entity type Individual (Type 1)

Name Ms. Ariellen Calivas

Credential PT

Sex Female

Practice address 1895 Walt Whitman Rd, Melville, NY, 11747

Phone (631) 577-3400

Fax (631) 577-3409

Enumeration date Apr 8, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 09621 (NY) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT 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 is the NPI number for Ariellen Calivas?

The National Provider Identifier (NPI) for Ariellen Calivas is 1174646996, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ariellen Calivas practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.