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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Bret J Barrett, MD

Infectious Disease Physician in Jackson, MS · enumerated 2007.

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

National Provider Identifier

1265640577

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Registry record

Entity type Individual (Type 1)
Name Dr. Bret J Barrett
Credential MD
Sex Male
Practice address 1200 N State St, Suite 500, Jackson, MS, 39202
Phone (601) 352-2273
Fax (601) 714-3415
Enumeration date May 18, 2007
Last updated in NPPES Mar 29, 2018

Taxonomy & licenses

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 20210 (MS) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
06903314 Medicaid MS -

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.

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Frequently asked questions

Is NPI 1265640577 active?
Yes, as of the latest NPPES snapshot, NPI 1265640577 is active (record last updated 2018-03-29).
How do I verify Bret Barrett's NPI record?
Cross-check NPI 1265640577 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-29.