Arnold E. Barz, MD
NPI 1710972559ActiveIndividual· Internal Medicine, Nephrology· Shreveport, LA
Internal Medicine, Nephrology (MD) in Shreveport, Louisiana, trained at Louisiana State University School of Medicine in Shreveport (class of 1997). In 2024 Medicare paid $277,138 for 903 patients, and Part D covered 1,016 of their prescriptions, 88% of them generic. Fresenius USA Marketing, Inc. was the largest of 15 companies reporting payments in 2025, $1,304 in all, mostly food and beverage.
Overview
| NPI | 1710972559 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 19, 2005 |
| Last updated in NPPES | Jul 1, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 024080 | 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 | 903 |
|---|---|
| Services billed | 5,016 across 33 procedure codes |
| Paid by Medicare | $277,138 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,016 · 1,885 30-day fills |
|---|---|
| Patients | 193 |
| Total drug cost | $231,241 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in Shreveport |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Northwest Louisiana Nephrology, LLCShreveport, LA · 23 clinicians
Hospital affiliations
- Christus Shreveport-Bossier Health SystemShreveport, LA
- North Caddo Medical CenterVivian, LA
- Sabine Medical CenterMany, LA
- Springhill Medical CenterSpringhill, LA
- Willis Knighton Medical CenterShreveport, LA
Other facilities
- Fmcna - Bossier Regional Dx CtrDialysis facility · Bossier City, LA
- Fmcna - North BossierDialysis facility · Bossier City, LA
- Fmcna - Shreveport RegionalDialysis facility · Shreveport, LA
Industry payments (Open Payments)
- 2025$1,304 · 62 payments from 15 companies
- 2024$1,308 · 69 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Fresenius USA Marketing, Inc. | $618.93 | 27 |
| Opko Pharmaceuticals, LLC | $151.49 | 10 |
| Amgen Inc. | $107.10 | 5 |
| Novartis Pharmaceuticals Corporation | $93.53 | 4 |
| Astrazeneca Pharmaceuticals LP | $73.59 | 4 |
What the 2025 payments were for
- Food and Beverage$1,152 · 52 payments
- Education$151.49 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other nephrologists in Shreveport
- 1023272895
- 1114044468
- 1144889973
- 1154317469
- 1215155791
- 1366653057
- 1437144052
- 1578824058
- 1578870929
- 1629187422
- 1740465798
- 1750303145
All 43 nephrologists in Shreveport · All nephrologists in Louisiana