Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Antoine Kassis, MD

Works at hospitals in Jacksonville, FL · Florida

Summary

Antoine Kassis, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Jacksonville, FL. NPI 1477627875. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Antoine Kassis, 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
YesOffers telehealth
46Years since medical school (graduated 1980)
MaleGender (as listed)

Quick answers

Which hospitals does Antoine Kassis work at?
Medicare's official clinician data lists Antoine Kassis at 2 hospitals: Ascension St Vincent's Riverside and HCA Florida Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Antoine Kassis see patients?
Medicare's clinician data lists 1 practice location in Jacksonville, FL. Call before your visit to confirm the address.
What is Antoine Kassis's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Antoine Kassis accept Medicare assignment?
Yes. Medicare's clinician data says Antoine Kassis 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.
Does Antoine Kassis offer telehealth?
Medicare's clinician data says Antoine Kassis offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Antoine Kassis?
(904) 256-3330, as listed in official Medicare / NPI Registry data.
What is Antoine Kassis's NPI number?
1477627875. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Antoine Kassis works

Medicare's Facility Affiliation Data lists Antoine Kassis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Antoine Kassis is enrolled with Medicare (CMS data updated 2026-10-02).

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 year1980
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1477627875
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians