Gregg K. Arena, MD
NPI 1356443766ActiveIndividual· Anesthesiology· Ruston, LA
Anesthesiology (MD) in Ruston, Louisiana, trained at Louisiana State University School of Medicine in New Orleans (class of 1983). 123 Medicare patients in 2024, $7,792 paid; nearly all of their 69 Part D prescriptions were generic (94%). Merck Sharp & Dohme LLC reported $31.97 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1356443766 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 5, 2006 |
| Last updated in NPPES | Feb 22, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | MD017213 | LA |
| Anesthesiology | 207L00000X | 24749 | KY |
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 - Anesthesiology (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 123 |
|---|---|
| Services billed | 139 across 29 procedure codes |
| Paid by Medicare | $7,792 |
Part D prescriptions in 2024
| Prescriptions (claims) | 69 · 109 30-day fills |
|---|---|
| Patients | 15 |
| Total drug cost | $1,635 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Anesthesiology |
Medical group
- Arena Anesthesia LLCRuston, LA · 10 clinicians
Hospital affiliation
- Northern Louisiana Medical CenterRuston, LA
Industry payments (Open Payments)
- 2025$31.97 · 2 payments from 1 company
- 2024$168.82 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $31.97 | 2 |
What the 2025 payments were for
- Food and Beverage$31.97 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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