Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Robert E Lyon Internal Medicine, Inc.

Internal Medicine Physician in Bastrop, LA · enumerated 2009 · authorized official Robert Lyon, Owner.

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

National Provider Identifier

1225265598

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Registry record

Entity type Organization (Type 2)

Legal business name Robert E Lyon Internal Medicine, Inc.

Practice address 420 Gunby Ave, Bastrop, LA, 71220

Phone (318) 281-3432

Fax (318) 281-8850

Enumeration date Jun 15, 2009

Last updated in NPPES Jun 15, 2009

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 015059 (LA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 014103 (LA) Primary

Authorized official

Name Robert Lyon

Title Owner

Phone (318) 281-3432

Other identifiers

Identifier	Type	State	Issuer
1302112	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

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Robert E Lyon Internal Medicine, Inc.?

Robert E Lyon Internal Medicine, Inc. is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-15.