Quick answers
- Which hospitals does John Nnadi work at?
- Medicare's official clinician data lists John Nnadi at 5 hospitals: Baton Rouge General Medical Center, Havasu Regional Medical Center, Lourdes Medical Center, Ochsner Medical Center - Baton Rouge and Trios Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Nnadi see patients?
- Medicare's clinician data lists 7 practice locations, including Baton Rouge, LA, Raceland, LA and Bangor, ME. Call before your visit to confirm the address.
- What is John Nnadi's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does John Nnadi accept Medicare assignment?
- Yes. Medicare's clinician data says John Nnadi 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 John Nnadi offer telehealth?
- Medicare's clinician data says John Nnadi offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John Nnadi?
- (225) 761-5200, as listed in official Medicare / NPI Registry data.
- What is John Nnadi's NPI number?
- 1558506782. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Nnadi works
Medicare's Facility Affiliation Data lists John Nnadi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Baton Rouge General Medical CenterBaton Rouge, LA · Acute Care Hospital · CCN 190065
- Havasu Regional Medical CenterLake Havasu City, AZ · Acute Care Hospital · CCN 030069
- Lourdes Medical CenterPasco, WA · Critical Access Hospital · CCN 501337
- Ochsner Medical Center - Baton RougeBaton Rouge, LA · Acute Care Hospital · CCN 190202
- Trios HealthKennewick, WA · Acute Care Hospital · CCN 500053
Practice locations
Addresses where John Nnadi is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 10310 the Grove BlvdBaton Rouge, LA 70836 (225) 761‑5200
- 104 Acadia Park DrRaceland, LA 70394 (985) 537‑3211
- 16777 Medical Ctr DrBaton Rouge, LA 70816 (225) 754‑3278
- 2925 Tradition AvenureBaton Rouge, LA 70810 (800) 975‑1652
- 360 BroadwayBangor, ME 04401
Group practices
Medicare enrollment lists John Nnadi as a member of these groups (CMS data updated 2026-10-02).
- Ochsner Clinic LLC2,864 clinicians in the group
- Bayhealth Medical Center, Inc413 clinicians in the group
- St Joseph Hospital199 clinicians in the group
- Homedica of Louisiana, LLC19 clinicians in the group
- Stem Medical Group PC7 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Baton Rouge
Clinicians with the same Medicare primary specialty in Baton Rouge, LA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1558506782 |
| 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