Robert Bryan Graveline, M.D.
NPI 1336137306ActiveIndividual· Internal Medicine, Gastroenterology· Ames, IA
Internal Medicine, Gastroenterology (M.D.) in Ames, Iowa, licensed in IA, with an NPI issued in October 2005. Their prescriptions cost Medicare Part D more than their services did: $598,558 for 1,632 claims, against $144,290 paid for services in 2024.
Overview
| NPI | 1336137306 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 12, 2005 |
| Last updated in NPPES | Jun 4, 2025 |
| Certified by provider | Jun 4, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 29795 | IA |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 735 |
|---|---|
| Services billed | 1,986 across 58 procedure codes |
| Paid by Medicare | $144,290 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,632 · 2,182 30-day fills |
|---|---|
| Patients | 795 |
| Total drug cost | $598,558 |
| Generic share | 85% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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