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

Ariel J Siegel, PA

Q: What is the NPI number for Ariel Siegel?

The National Provider Identifier (NPI) for Ariel Siegel is 1881357549, a Type 1 (individual) record in the CMS NPPES registry.

Medical Physician Assistant in New Square, NY · enumerated 2021.

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

National Provider Identifier

1881357549

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Registry record

Entity type Individual (Type 1)

Name Ariel J Siegel

Credential PA

Sex Male

Practice address New Square, NY, 10977

Phone (845) 354-9300

Enumeration date Oct 20, 2021

Last updated in NPPES Oct 20, 2021

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

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 008601 (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
PENDING	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 Ariel Siegel practice?

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

What is the NPI number for Ariel Siegel?

The National Provider Identifier (NPI) for Ariel Siegel is 1881357549, 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 2021-10-20.