NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Reese Alfred Mathieu IV, M.D.

Pediatrics Physician in Richardson, TX · enumerated 2014 · practices at Mathieu Pediatrics Pllc.

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

National Provider Identifier

1528486123

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Reese Alfred Mathieu IV
Credential M.D.
Sex Male
Practice address 3601 Northstar Rd, Richardson, TX, 75082
Fax (972) 235-3859
Enumeration date Apr 1, 2014
Last updated in NPPES Sep 19, 2018

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License R1822 (TX) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Where does Reese Mathieu practice?
The practice location on file with NPPES is in Richardson, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Reese Mathieu?
The National Provider Identifier (NPI) for Reese Mathieu is 1528486123, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-19.