Ronald Ernest Fields, MD
NPI 1962498196ActiveIndividual· Internal Medicine, Critical Care Medicine· Baton Rouge, LA
Internal Medicine, Critical Care Medicine (MD) in Baton Rouge, Louisiana, trained at Louisiana State University School of Medicine in Shreveport (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $2,082,468 for 3,920 claims, against $52,389 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 25 companies reporting payments in 2025, $2,858 in all, mostly food and beverage.
Overview
| NPI | 1962498196 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 22, 2005 |
| Last updated in NPPES | Dec 28, 2020 |
| Certified by provider | Dec 28, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | 023084 | LA |
| Specialist | 174400000X | 023084 | LA |
| Internal Medicine, Pulmonary Disease | 207RP1001X | 023084 | LA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Pulmonary Disease (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 531 |
|---|---|
| Services billed | 1,697 across 18 procedure codes |
| Paid by Medicare | $52,389 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,920 · 4,983 30-day fills |
|---|---|
| Patients | 558 |
| Total drug cost | $2,082,468 |
| Generic share | 27% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in Shreveport |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
| Telehealth | Offers telehealth |
Medical group
- Our Lady of the Lake Physician Group LLCBaton Rouge, LA · 644 clinicians
Hospital affiliations
- Our Lady of the Angels HospitalBogalusa, LA
- Our Lady of the Lake Regional Medical CenterBaton Rouge, LA
Industry payments (Open Payments)
- 2025$2,858 · 141 payments from 25 companies
- 2024$2,213 · 115 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $358.98 | 26 |
| Genzyme Corporation | $358.75 | 10 |
| Astrazeneca Pharmaceuticals LP | $323.14 | 18 |
| Grifols USA, LLC | $236.97 | 9 |
| United Therapeutics Corporation | $206.52 | 8 |
What the 2025 payments were for
- Food and Beverage$2,824 · 140 payments
- Education$34.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Critical Care Medicine providers in Baton Rouge
- 1780872804
- 1275087033
- 1841713427
- 1871518530
- 1376803437
- 1609033802
- 1215565437
- 1487697199
- 1073518510
- 1558628859
- 1356784284
- 1063733855
All Internal Medicine, Critical Care Medicine providers in Louisiana →