Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ethan N Hartman

Emergency Medicine Physician in Long Beach, CA · enumerated 2021.

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

National Provider Identifier

1891372462

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Registry record

Entity type Individual (Type 1)

Name Ethan N Hartman

Sex Male

Practice address 1050 Linden Ave, Long Beach, CA, 90813

Phone (562) 491-9000

Enumeration date Mar 28, 2021

Last updated in NPPES Jun 17, 2026

Taxonomy & licenses

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License A186274 (CA) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License A186274 (CA) Primary

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 Ethan Hartman?

The National Provider Identifier (NPI) for Ethan Hartman is 1891372462, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ethan Hartman practice?

The practice location on file with NPPES is in Long Beach, 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 2026-06-17.