John Onyemaechi Nnadi, MD
NPI 1558506782ActiveIndividual· Internal Medicine, Infectious Disease· Baton Rouge, LA
Internal Medicine, Infectious Disease (MD) with Ochsner Clinic LLC and 4 other groups, practicing in Baton Rouge, Louisiana. Their prescriptions cost Medicare Part D more than their services did: $1,678,024 for 8,518 claims, against $110,207 paid for services in 2024. Viiv Healthcare Company reported $17.18 in payments in 2024, mostly food and beverage. Lists Baton Rouge General Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1558506782 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 2, 2008 |
| Last updated in NPPES | Nov 17, 2022 |
| Certified by provider | Nov 17, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | MD.202997 | LA |
| Internal Medicine | 207R00000X | 20962 | MS |
| Internal Medicine | 207R00000X | MD.202997 | LA |
| Internal Medicine, Infectious Disease | 207RI0200X | 20962 | MS |
| Internal Medicine, Infectious Disease | 207RI0200X | C1-0025159 | DE |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Infectious Disease (DE); Practitioner - Internal Medicine (LA); Practitioner - Infectious Disease (ME); Practitioner - Internal Medicine (MI); Practitioner - Internal Medicine (MS); Practitioner - Infectious Disease (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 590 |
|---|---|
| Services billed | 1,438 across 23 procedure codes |
| Paid by Medicare | $110,207 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,518 · 8,643 30-day fills |
|---|---|
| Patients | 424 |
| Total drug cost | $1,678,024 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Ochsner Clinic LLCNew Orleans, LA · 2,864 clinicians
- Bayhealth Medical Center, IncDover, DE · 413 clinicians
- St Joseph HospitalBangor, ME · 199 clinicians
- Homedica of Louisiana, LLCBaton Rouge, LA · 19 clinicians
- Stem Medical Group PCNaperville, IL · 7 clinicians
Hospital affiliations
- Baton Rouge General Medical CenterBaton Rouge, LA
- Havasu Regional Medical CenterLake Havasu City, AZ
- Lourdes Medical CenterPasco, WA
- Ochsner Medical Center - Baton RougeBaton Rouge, LA
- Trios HealthKennewick, WA
Other facilities
- Stat Home Health, LLCHome health agency · La Place, LA
- Capitol House Nursing and Rehab CenterNursing home · Baton Rouge, LA
- Center Point Health Care and RehabNursing home · Baton Rouge, LA
- Mid City Community Nursing and RehabNursing home · Baton Rouge, LA
Industry payments (Open Payments)
- 2024$17.18 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Viiv Healthcare Company | $17.18 | 1 |
What the 2024 payments were for
- Food and Beverage$17.18 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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