Robert M. Siwiec, M.D.
NPI 1184880676ActiveIndividual· Internal Medicine, Gastroenterology· Carmel, IN
Internal Medicine, Gastroenterology (M.D.) with Iu Health Medical Group LLC, practicing in Carmel, Indiana. Their prescriptions cost Medicare Part D more than their services did: $199,114 for 814 claims, against $47,168 paid for services in 2024. Perspectum Diagnostics Ltd reported $119.00 in payments in 2024, mostly food and beverage. Lists Indiana University Health and 1 other hospital as hospital affiliations.
Overview
| NPI | 1184880676 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 4, 2008 |
| Last updated in NPPES | Mar 11, 2025 |
| Certified by provider | Mar 11, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 01070921A | IN |
| Internal Medicine | 207R00000X | 036122288 | IL |
| Internal Medicine, Gastroenterology | 207RG0100X | 5272620 | WI |
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 (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 341 |
|---|---|
| Services billed | 459 across 35 procedure codes |
| Paid by Medicare | $47,168 |
Part D prescriptions in 2024
| Prescriptions (claims) | 814 · 1,213 30-day fills |
|---|---|
| Patients | 179 |
| Total drug cost | $199,114 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Iu Health Medical Group LLCIndianapolis, IN · 4,462 clinicians
Hospital affiliations
- Indiana University HealthIndianapolis, IN
- Indiana University Health North HospitalCarmel, IN
Industry payments (Open Payments)
- 2024$119.00 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Perspectum Diagnostics Ltd | $119.00 | 1 |
What the 2024 payments were for
- Food and Beverage$119.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Carmel
- 1336342823
- 1376750745
- 1942356555
- 1215163688
- 1467770255
- 1336199603
- 1346444759
- 1124193685
All Internal Medicine, Gastroenterology providers in Indiana →