Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Howard Leslie Dorne, M.D.

Diagnostic Radiology Physician in Orange, CA · enumerated 2005.

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

National Provider Identifier

1376543140

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Registry record

Entity type Individual (Type 1)

Name Howard Leslie Dorne

Credential M.D.

Sex Male

Practice address 1140 W La Veta Ave, Ste. 850, Orange, CA, 92868

Phone (714) 560-4450

Fax (714) 560-4455

Enumeration date Jul 22, 2005

Last updated in NPPES Aug 18, 2008

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License G57108 (CA) Primary

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians · License G57108 (CA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
00G571080	Other	-	BLUE SHIELD OF CA
053304CA53237	Other	-	TRAILBLAZER
P00151437	Other	-	RAILROAD MEDICARE
00G571080	Medicaid	CA	-
00G571080 M46	Other	-	CALOPTIMA

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.

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Frequently asked questions

What specialty is Howard Dorne?

Howard Dorne is registered in NPPES with the primary taxonomy of Diagnostic Radiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-18.