Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William M Barrett, MD

Pediatrics Physician in Denver, NC · enumerated 2005.

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

National Provider Identifier

1831191402

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Registry record

Entity type Individual (Type 1)

Name Dr. William M Barrett

Credential MD

Sex Male

Practice address 514 N Nc 16 Business Hwy, Denver, NC, 28037

Phone (828) 244-4475

Fax (828) 970-5912

Enumeration date Aug 12, 2005

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MD36393 (TN) 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
3899711	Medicaid	TN	-

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 the NPI number for William Barrett?

The National Provider Identifier (NPI) for William Barrett is 1831191402, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Barrett practice?

The practice location on file with NPPES is in Denver, NC. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.