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Cardiovascular Disease (Cardiology)

Arthur G. Grant Iii, MD

Works at hospitals in Baton Rouge, LA · New Orleans, LA · Louisiana

Summary

Dr. Arthur G. Grant Iii, MD is a cardiologist at 1514 Jefferson Hwy, New Orleans, LA 70121. Phone: (504) 842-3000. Accepts Medicare assignment. NPI 1053501676. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about Arthur G. Grant Iii, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Arthur G. Grant Iii accept Medicare assignment?
Yes. Medicare's clinician data says Arthur G. Grant Iii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Arthur G. Grant Iii's NPI number?
1053501676. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Arthur G. Grant Iii works

Medicare's Facility Affiliation Data lists Arthur G. Grant Iii at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Arthur G. Grant Iii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Arthur G. Grant Iii as a member of this group (CMS data updated October 2, 2026).

  • Ochsner Clinic LLC2,864 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Louisiana →

Other cardiologists in New Orleans

Clinicians with the same Medicare primary specialty in New Orleans, LA — not a recommendation.

All cardiologists in New Orleans →

Other clinicians in Ochsner Clinic LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolLouisiana State University School Of Medicine In New Orleans
Graduation year2001 (25 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1053501676
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians