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Dr. Brett William Mercer, DO

Neurology Physician in Fort Myers, FL · enumerated 2016 · practices at Lee Memorial Health System.

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

National Provider Identifier

1427416114

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Registry record

Entity type Individual (Type 1)
Name Dr. Brett William Mercer
Credential DO
Sex Male
Practice address 12600 Creekside Ln Ste 2, Fort Myers, FL, 33919
Phone (239) 343-9235
Enumeration date Feb 9, 2016
Last updated in NPPES Nov 19, 2025

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License OS16552 (FL) 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

Other identifiers

Identifier Type State Issuer
128803000 Medicaid FL -

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 Brett Mercer?
The National Provider Identifier (NPI) for Brett Mercer is 1427416114, a Type 1 (individual) record in the CMS NPPES registry.
Where does Brett Mercer practice?
The practice location on file with NPPES is in Fort Myers, FL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-19.