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Dr. John B Holden, MD

Diagnostic Ultrasound Physician in Pasadena, CA · enumerated 2006.

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

National Provider Identifier

1033125414

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Registry record

Entity type Individual (Type 1)
Name Dr. John B Holden
Credential MD
Sex Male
Practice address 100 W California Blvd, Pasadena, CA, 91105
Phone (626) 397-2139
Enumeration date Jul 31, 2006
Last updated in NPPES Jul 12, 2007

Taxonomy & licenses

2085B0100X Body Imaging Physician Allopathic & Osteopathic Physicians · License G56141 (CA) Secondary
2085N0904X Nuclear Radiology Physician Allopathic & Osteopathic Physicians · License G56141 (CA) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License G56141 (CA) Secondary
2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians · License G56141 (CA) Secondary
2085U0001X Diagnostic Ultrasound Physician Allopathic & Osteopathic Physicians · License G56141 (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
00G561410 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.

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Frequently asked questions

What is the NPI number for John Holden?
The National Provider Identifier (NPI) for John Holden is 1033125414, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Holden practice?
The practice location on file with NPPES is in Pasadena, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-12.