Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

The Hospitalist Practice

Internal Medicine Physician in Gretna, LA · enumerated 2006 · authorized official Julio Guillen, Medical Director.

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

National Provider Identifier

1821034620

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Registry record

Entity type Organization (Type 2)

Legal business name The Hospitalist Practice

Practice address 148 Wall Blvd, Gretna, LA, 70056

Phone (504) 393-2775

Fax (504) 393-2744

Enumeration date Jun 21, 2006

Last updated in NPPES Oct 22, 2007

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Julio Guillen

Title Medical Director

Phone (504) 393-2775

Other identifiers

Identifier	Type	State	Issuer
1445428	Medicaid	LA	-

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

Where is The Hospitalist Practice located?

The practice location on file with NPPES is in Gretna, LA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-10-22. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-22.