James Sungmin Sim, MD
NPI 1578678405ActiveIndividual· Internal Medicine, Nephrology· Baton Rouge, LA
Internal Medicine, Nephrology (MD) in Baton Rouge, Louisiana, trained at Medical College of Georgia School of Medicine (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $709,227 for 1,407 claims, against $105,957 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 15 companies reporting payments in 2025, $785.88 in all, mostly food and beverage.
Overview
| NPI | 1578678405 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 20, 2006 |
| Last updated in NPPES | Jun 29, 2022 |
| Certified by provider | Jun 29, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD.206715 | LA |
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 - Nephrology (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 382 |
|---|---|
| Services billed | 1,362 across 21 procedure codes |
| Paid by Medicare | $105,957 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,407 · 2,703 30-day fills |
|---|---|
| Patients | 264 |
| Total drug cost | $709,227 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | Medical College of Georgia School of Medicine |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical groups
- Ochsner Clinic LLCNew Orleans, LA · 2,864 clinicians
- Renal Associates of Baton Rouge, LLCBaton Rouge, LA · 26 clinicians
Hospital affiliations
- Baton Rouge General Medical CenterBaton Rouge, LA
- Ochsner Medical Center - Baton RougeBaton Rouge, LA
- Our Lady of the Lake Regional Medical CenterBaton Rouge, LA
Other facilities
- Fmcna - Howell PlaceDialysis facility · Baton Rouge, LA
Industry payments (Open Payments)
- 2025$785.88 · 35 payments from 15 companies
- 2024$641.71 · 28 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $162.56 | 3 |
| Amgen Inc. | $153.82 | 8 |
| Fresenius USA Marketing, Inc. | $85.47 | 4 |
| Mallinckrodt Hospital Products Inc. | $70.71 | 4 |
| Bayer Healthcare Pharmaceuticals Inc. | $62.47 | 3 |
What the 2025 payments were for
- Food and Beverage$785.88 · 35 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 30 nephrologists in Baton Rouge · All nephrologists in Louisiana