NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Hospitalist Group of Montebello Inc

Hospitalist Physician in Corona, CA · enumerated 2015 · authorized official Tameem Alhayya, Owner.

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

National Provider Identifier

1578959318

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Hospitalist Group of Montebello Inc
Practice address 250 E Rincon St Ste 106, Corona, CA, 92879
Enumeration date Apr 8, 2015
Last updated in NPPES Mar 28, 2025

Taxonomy & classification

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Tameem Alhayya
Title Owner

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 Hospitalist Group of Montebello Inc?
The NPI for Hospitalist Group of Montebello Inc is 1578959318, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Hospitalist Group of Montebello Inc?
NPPES lists Tameem Alhayya (Owner) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-28.