Ronald D. Rinker, M.D.
NPI 1740226117ActiveIndividual· Internal Medicine, Gastroenterology· Pascagoula, MS
Internal Medicine, Gastroenterology (M.D.) in Pascagoula, Mississippi, trained at Tulane University School of Medicine (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $1,196,624 for 4,229 claims, against $127,938 paid for services in 2024. Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $216.98 in all, mostly food and beverage.
Overview
| NPI | 1740226117 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 22, 2006 |
| Last updated in NPPES | Jun 4, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 13048 | MS |
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 - Gastroenterology (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 933 |
|---|---|
| Services billed | 1,631 across 38 procedure codes |
| Paid by Medicare | $127,938 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,229 · 8,759 30-day fills |
|---|---|
| Patients | 1,017 |
| Total drug cost | $1,196,624 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Gastroenterology |
Medical group
- Singing River Health SystemOcean Springs, MS · 295 clinicians
Hospital affiliations
- Singing River GulfportGulfport, MS
- Singing River Health SystemPascagoula, MS
Industry payments (Open Payments)
- 2025$216.98 · 10 payments from 3 companies
- 2024$198.63 · 7 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $111.49 | 5 |
| Gilead Sciences, Inc. | $80.14 | 4 |
| Celltrion USA Inc. | $25.35 | 1 |
What the 2025 payments were for
- Food and Beverage$216.98 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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