Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Steven Calleros MD Inc.

Health Maintenance Organization in Los Angeles, CA · enumerated 2007 · authorized official Steven Calleros, President.

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

National Provider Identifier

1861682593

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Registry record

Entity type Organization (Type 2)

Legal business name Steven Calleros MD Inc.

Practice address 4499 Via Marisol Apt 107a, Los Angeles, CA, 90042

Phone (818) 314-8300

Enumeration date Jul 30, 2007

Last updated in NPPES Jul 30, 2007

Taxonomy & classification

302R00000X Health Maintenance Organization Managed Care Organizations · License A73924 (CA) Primary

Authorized official

Name Steven Calleros

Title President

Phone (818) 314-8300

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-07-30. Verify at npiregistry.cms.hhs.gov.

Where is Steven Calleros MD Inc. located?

The practice location on file with NPPES is in Los Angeles, CA.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-30.