Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Clifford W Cornelius, DDS

Oral & Maxillofacial Surgery (D.M.D.) in Tucson, AZ · enumerated 2007.

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

National Provider Identifier

1841338175

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Registry record

Entity type Individual (Type 1)

Name Dr. Clifford W Cornelius

Credential DDS

Sex Male

Practice address 3150 N Swan Road, Tucson, AZ, 85712

Phone (520) 745-6531

Fax (520) 790-3817

Enumeration date Feb 1, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

204E00000X Oral & Maxillofacial Surgery (D.M.D.) Allopathic & Osteopathic Physicians · License 5116 (AZ) Primary

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

Other identifiers

Identifier	Type	State	Issuer
510976	Medicaid	AZ	-
AZ5116	Other	AZ	DELTA
AZ0472930	Other	AZ	BLUE CROSS

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 1841338175 active?

Yes, as of the latest NPPES snapshot, NPI 1841338175 is active (record last updated 2007-07-08).

How do I verify Clifford Cornelius's NPI record?

Cross-check NPI 1841338175 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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