Arun K. Karsan, M.D.
NPI 1023089448ActiveIndividual· Internal Medicine, Interventional Cardiology· Alexandria, LA
Internal Medicine, Interventional Cardiology (M.D.) with Rapides Regional Physician Group, Specialty Care, LLC, practicing in Alexandria, Louisiana. Their prescriptions cost Medicare Part D more than their services did: $1,137,175 for 7,138 claims, against $404,343 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 21 companies reporting payments in 2025, $881.23 in all, mostly food and beverage. Lists Avoyelles Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1023089448 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 1, 2006 |
| Last updated in NPPES | Jan 27, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | 09526R | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Interventional Cardiology (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,674 |
|---|---|
| Services billed | 4,968 across 88 procedure codes |
| Paid by Medicare | $404,343 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,138 · 15,976 30-day fills |
|---|---|
| Patients | 1,101 |
| Total drug cost | $1,137,175 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1982 |
|---|---|
| Medicare specialty | Interventional Cardiology |
| Secondary specialties | Cardiovascular Disease (Cardiology), Internal Medicine |
Medical group
- Rapides Regional Physician Group, Specialty Care, LLCAlexandria, LA · 42 clinicians
Hospital affiliations
- Avoyelles HospitalMarksville, LA
- Bunkie General HospitalBunkie, LA
- Christus St Frances Cabrini HospitalAlexandria, LA
- Rapides Regional Medical CenterAlexandria, LA
- Willis Knighton Medical CenterShreveport, LA
Industry payments (Open Payments)
- 2025$881.23 · 48 payments from 21 companies
- 2024$1,420 · 92 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $174.59 | 9 |
| Pfizer Inc. | $92.77 | 5 |
| Novartis Pharmaceuticals Corporation | $71.74 | 4 |
| Kestra Medical Technology Services, Inc. | $71.72 | 2 |
| E.R. Squibb & Sons, L.L.C. | $67.81 | 4 |
What the 2025 payments were for
- Food and Beverage$881.23 · 48 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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