Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexander Stephen Grohmann

Emergency Medicine Physician in Los Angeles, CA · enumerated 2017.

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

National Provider Identifier

1922532720

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Registry record

Entity type Individual (Type 1)

Name Alexander Stephen Grohmann

Sex Male

Practice address 757 Westwood Plz Ste 1517, Los Angeles, CA, 90095

Phone (310) 825-9111

Enumeration date Apr 18, 2017

Last updated in NPPES Aug 11, 2023

Taxonomy & licenses

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 036156227 (IL) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 036156227 (IL) Secondary

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License A158886 (CA) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License A158886 (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 Alexander Grohmann?

The National Provider Identifier (NPI) for Alexander Grohmann is 1922532720, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexander Grohmann practice?

The practice location on file with NPPES is in Los Angeles, 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 2023-08-11.