Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dianna Chooljian, MD PHD MPH

Neuroradiology Physician in Long Beach, CA · enumerated 2005.

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

National Provider Identifier

1902888043

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Registry record

Entity type Individual (Type 1)

Name Dianna Chooljian

Credential MD PHD MPH

Sex Female

Practice address 2801 Atlantic Ave, Long Beach, CA, 90806

Phone (562) 933-1550

Enumeration date Nov 15, 2005

Last updated in NPPES Apr 20, 2009

Taxonomy & licenses

2085N0700X Neuroradiology Physician Allopathic & Osteopathic Physicians · License G57579 (CA) Primary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License G57579 (CA) Secondary

Other identifiers

Identifier	Type	State	Issuer
00G575790	Other	CA	MEDICAL

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 1902888043 active?

Yes, as of the latest NPPES snapshot, NPI 1902888043 is active (record last updated 2009-04-20).

How do I verify Dianna Chooljian's NPI record?

Cross-check NPI 1902888043 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-04-20.