Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Arthur John Helliwell, D.D.S.

Dentist in Newport Beach, CA · enumerated 2014.

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

National Provider Identifier

1033535919

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Registry record

Entity type Individual (Type 1)

Name Dr. Arthur John Helliwell

Credential D.D.S.

Sex Male

Practice address 400 Newport Center Dr, Suite 304, Newport Beach, CA, 92660

Phone (949) 760-6022

Fax (949) 760-8483

Enumeration date Mar 14, 2014

Last updated in NPPES Mar 14, 2014

Taxonomy & licenses

122300000X Dentist Dental Providers · License 24114 (CA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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

Is NPI 1033535919 active?

Yes, as of the latest NPPES snapshot, NPI 1033535919 is active (record last updated 2014-03-14).

How do I verify Arthur Helliwell's NPI record?

Cross-check NPI 1033535919 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 2014-03-14.