Quick answers
- Which hospitals does James Kalyvas work at?
- Medicare's official clinician data lists James Kalyvas at 3 hospitals: Bozeman Health Deaconess Hospital, Ochsner Medical Center Acute and Ochsner Medical Center-Hancock. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James Kalyvas see patients?
- Medicare's clinician data lists 3 practice locations, including New Orleans, LA and Bozeman, MT. Call before your visit to confirm the address.
- What is James Kalyvas's specialty?
- Medicare lists Neurosurgery as the primary specialty.
- Does James Kalyvas accept Medicare assignment?
- Yes. Medicare's clinician data says James Kalyvas 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 James Kalyvas offer telehealth?
- Medicare's clinician data says James Kalyvas offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for James Kalyvas?
- (504) 842-3000, as listed in official Medicare / NPI Registry data.
- What is James Kalyvas's NPI number?
- 1811151772. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James Kalyvas works
Medicare's Facility Affiliation Data lists James Kalyvas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bozeman Health Deaconess HospitalBozeman, MT · Acute Care Hospital · CCN 270057
- Ochsner Medical Center AcuteNew Orleans, LA · Acute Care Hospital · CCN 190036
- Ochsner Medical Center-HancockBay Saint Louis, MS · Acute Care Hospital · CCN 250162
Practice locations
Addresses where James Kalyvas is enrolled with Medicare (CMS data updated 2026-10-02).
- 1514 Jefferson HwyNew Orleans, LA 70121 (504) 842‑3000
- 905 Highland Blvd, Suite 4500Bozeman, MT 59715 (406) 414‑5150
- 915 Highland BlvdBozeman, MT 59715 (406) 414‑5000
Group practices
Medicare enrollment lists James Kalyvas as a member of these groups (CMS data updated 2026-10-02).
- Ochsner Clinic LLC2,864 clinicians in the group
- Bozeman Health Deaconess Hospital320 clinicians in the group
Specialties
- Neurosurgeryprimary
Other neurosurgeons in New Orleans
Clinicians with the same Medicare primary specialty in New Orleans, LA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1811151772 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians