Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Steven Nagelberg, M.D.

Specialist in Downey, CA · enumerated 2007.

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

National Provider Identifier

1114060720

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Steven Nagelberg

Credential M.D.

Sex Male

Practice address 10800 Paramount Blvd, #204a, Downey, CA, 90241

Phone (562) 803-6116

Fax (562) 803-6308

Enumeration date Feb 14, 2007

Last updated in NPPES Mar 2, 2016

Taxonomy & licenses

173000000X Legal Medicine Other Service Providers · License G51854 (CA) Secondary

174400000X Specialist Other Service Providers · License G51854 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 is the NPI number for Steven Nagelberg?

The National Provider Identifier (NPI) for Steven Nagelberg is 1114060720, a Type 1 (individual) record in the CMS NPPES registry.

Where does Steven Nagelberg practice?

The practice location on file with NPPES is in Downey, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-02.