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Internal Medicine

Matthew E. Kornas, MD

Sees patients in Jacksonville, FL · Florida

Summary

Matthew E. Kornas, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in Jacksonville, FL. NPI 1255033379. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Matthew E. Kornas, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
3Years since medical school (graduated 2023)
MaleGender (as listed)
Mayo Clinic JacksonvilleGroup practice

Quick answers

Where does Matthew E. Kornas see patients?
Medicare's clinician data lists 1 practice location in Jacksonville, FL. Call before your visit to confirm the address.
What is Matthew E. Kornas's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Matthew E. Kornas accept Medicare assignment?
Yes. Medicare's clinician data says Matthew E. Kornas accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Matthew E. Kornas?
(904) 953-2000, as listed in official Medicare / NPI Registry data.
What is Matthew E. Kornas's NPI number?
1255033379. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Matthew E. Kornas is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Matthew E. Kornas as a member of this group (CMS data updated 2026-10-02).

  • Mayo Clinic Jacksonville1,615 clinicians in the group

Specialties

Find other Internal Medicine doctors in Florida →

Other internal medicine doctors in Jacksonville

Clinicians with the same Medicare primary specialty in Jacksonville, FL — not a recommendation.

All internal medicine doctors in Jacksonville →

Clinician information

CredentialMD
Graduation year2023
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1255033379
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians