Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Paul Kupperstein, D.O.

Diagnostic Radiology Physician in Orange, CA · enumerated 2005.

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

National Provider Identifier

1679572218

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Registry record

Entity type Individual (Type 1)

Name Paul Kupperstein

Credential D.O.

Sex Male

Practice address 431 S Batavia St, Ste. 103, Orange, CA, 92868

Phone (714) 538-6731

Fax (714) 771-8369

Enumeration date Jul 15, 2005

Last updated in NPPES Aug 15, 2008

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 20A4933 (CA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
00AX49330	Medicaid	CA	-
020A49330	Other	-	BLUE SHIELD OF CA
00AX49330 159	Other	-	CALOPTIMA
300034681	Other	-	RAILROAD MEDICARE
053304CA01379	Other	-	TRAILBLAZER

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 Paul Kupperstein?

Paul Kupperstein 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 2008-08-15.