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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark M Barret, MD

Pediatrics Physician in Tyler, TX · enumerated 2006.

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

National Provider Identifier

1659341055

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Registry record

Entity type Individual (Type 1)
Name Mark M Barret
Credential MD
Sex Male
Practice address 8288 S Broadway Ave, Tyler, TX, 75703
Enumeration date Jan 26, 2006
Last updated in NPPES Dec 8, 2014

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License J3978 (TX) 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
5152004 Other TX AETNA
TAX ID AND 027 Other TX TRICARE
122991 Other TX SUPERIOR/CHIPS
83Y676 Other TX BCBS
136283211 Medicaid TX
8DC103 Other TX BCBS
136283212 Medicaid TX
752616977118 Other TX TRICARE
136283208 Medicaid TX

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 1659341055 active?
Yes — as of the latest NPPES snapshot, NPI 1659341055 is active (record last updated 2014-12-08).
How do I verify Mark Barret's NPI record?
Cross-check NPI 1659341055 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 2014-12-08.