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Steven B. Leven, MD

Critical Care Medicine (Internal Medicine) Physician in Orange, CA · enumerated 2005.

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

National Provider Identifier

1538166780

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Registry record

Entity type Individual (Type 1)
Name Steven B. Leven
Credential MD
Sex Male
Practice address 333 City Blvd W, Suite 400, Orange, CA, 92868
Phone (562) 884-3783
Fax (714) 456-3597
Enumeration date Jul 1, 2005
Last updated in NPPES Sep 23, 2014

Taxonomy & licenses

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License G49708 (CA) Primary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License G49708 (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
00G497080 Other CA MEDI CAL

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 Steven Leven?
The National Provider Identifier (NPI) for Steven Leven is 1538166780, a Type 1 (individual) record in the CMS NPPES registry.
Where does Steven Leven practice?
The practice location on file with NPPES is in Orange, 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 2014-09-23.