NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Yoon, M.D.

Diagnostic Radiology Physician in Santa Barbara, CA · enumerated 2007.

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

National Provider Identifier

1588860944

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name John Yoon
Credential M.D.
Sex Male
Practice address Pueblo at Bath St., Santa Barbara, CA, 93102
Fax (805) 569-8279
Enumeration date Jun 22, 2007
Last updated in NPPES Aug 18, 2008

Taxonomy & licenses

2085N0700X Neuroradiology Physician Allopathic & Osteopathic Physicians · License A95158 (CA) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License A95158 (CA) Primary
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
00A951580 Other - BLUE SHIELD
P00448777 Other - RAILROAD MEDICARE
00A951580 Medicaid CA -

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

What specialty is John Yoon?
John Yoon 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.

Other providers at this practice address

Browse all →

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