Eduardo A. Demondesert, MD
Internal Medicine, Gastroenterology (MD) with Mercy Clinic Fort Smith Communities, practicing in Fort Smith, Arkansas. Their prescriptions cost Medicare Part D more than their services did: $2,935,512 for 3,361 claims, against $149,906 paid for services in 2024. Abbvie Inc. was the largest of 15 companies reporting payments in 2025, $1,805 in all, mostly food and beverage. Lists Baptist Health - Fort Smith and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1386675536 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 6, 2006 |
| Last updated in NPPES | Aug 28, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | E-0435 | AR |
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 - Gastroenterology (AR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 890 |
|---|---|
| Services billed | 1,576 across 58 procedure codes |
| Paid by Medicare | $149,906 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,361 · 4,342 30-day fills |
|---|---|
| Patients | 913 |
| Total drug cost | $2,935,512 |
| Generic share | 74% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Mercy Clinic Fort Smith CommunitiesFort Smith, AR · 372 clinicians
Hospital affiliations
- Baptist Health - Fort SmithFort Smith, AR
- Mercy Hospital Fort SmithFort Smith, AR
- Mercy Hospital ParisParis, AR
Industry payments (Open Payments)
- 2025$1,805 · 86 payments from 15 companies
- 2024$1,812 · 94 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $531.39 | 33 |
| Janssen Biotech, Inc. | $324.38 | 11 |
| Gilead Sciences, Inc. | $276.88 | 13 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $198.92 | 11 |
| Ipsen Biopharmaceuticals, Inc | $119.11 | 5 |
What the 2025 payments were for
- Food and Beverage$1,805 · 86 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Gastroenterology providers in Arkansas →