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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Flint Robert Walker, D.O.

Family Medicine Physician in Hilton Head, SC · enumerated 2014 · practices at Mayes Internal Medicine, LLC.

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

National Provider Identifier

1215356894

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Registry record

Entity type Individual (Type 1)
Name Dr. Flint Robert Walker
Credential D.O.
Sex Male
Practice address Hilton Head, SC, 29926
Phone (843) 342-4455
Fax (843) 342-4435
Enumeration date Apr 10, 2014
Last updated in NPPES Oct 4, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 0102204717 (VA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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.

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Frequently asked questions

What is the NPI number for Flint Walker?
The National Provider Identifier (NPI) for Flint Walker is 1215356894, a Type 1 (individual) record in the CMS NPPES registry.
Where does Flint Walker practice?
The practice location on file with NPPES is in Hilton Head, SC. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-04.