Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory G Ewing, PA

Physician Assistant in Somerville, NJ · enumerated 2007.

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

National Provider Identifier

1821278433

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Registry record

Entity type Individual (Type 1)

Name Gregory G Ewing

Credential PA

Sex Male

Practice address 110 Rehill Ave, Somerville, NJ, 08876

Phone (908) 685-2200

Fax (732) 923-2272

Enumeration date Nov 12, 2007

Last updated in NPPES Jun 28, 2024

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 25MP00029600 (NJ) 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
527111	Other	NJ	MEDICARE RAILROAD

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

Is NPI 1821278433 active?

Yes, as of the latest NPPES snapshot, NPI 1821278433 is active (record last updated 2024-06-28).

How do I verify Gregory Ewing's NPI record?

Cross-check NPI 1821278433 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-28.