Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Sama Reference Lab

Q: What is the NPI number for Sama Reference Lab?

The NPI for Sama Reference Lab is 1083609051, a Type 2 (organization) record in the CMS NPPES registry.

Clinical Medical Laboratory in El Dorado, AR · enumerated 2005 · authorized official Matthew Calloway, MD.

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

National Provider Identifier

1083609051

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Registry record

Entity type Organization (Type 2)

Legal business name Sama Reference Lab

Other name <Unavail>

Practice address 600 S Timberlane Dr, El Dorado, AR, 71730

Phone (870) 862-2400

Fax (870) 862-1891

Enumeration date Sep 15, 2005

Last updated in NPPES Jan 12, 2026

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories · License 04D0963063 (AR) Primary

Authorized official

Name Matthew Calloway

Title MD

Phone (870) 862-2400

Other identifiers

Identifier	Type	State	Issuer
04D0963063	Other	AR	CLIA

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

Who is the authorized official for Sama Reference Lab?

NPPES lists Matthew Calloway (MD) as the authorized official for this organization.

What is the NPI number for Sama Reference Lab?

The NPI for Sama Reference Lab is 1083609051, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-12.