Michael Gilles, MD
NPI 1164579025ActiveIndividual· Internal Medicine, Gastroenterology· Reno, NV
Internal Medicine, Gastroenterology (MD) in Reno, Nevada, trained at University of Nevada School of Medicine (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $457,886 for 853 claims, against $104,914 paid for services in 2024. Abbvie Inc. was the largest of 9 companies reporting payments in 2025, $615.86 in all, mostly food and beverage.
Overview
| NPI | 1164579025 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 4, 2007 |
| Last updated in NPPES | Jul 17, 2026 |
| Certified by provider | Jul 17, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 16941 | NV |
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 - Internal Medicine (NV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 470 |
|---|---|
| Services billed | 1,006 across 67 procedure codes |
| Paid by Medicare | $104,914 |
Part D prescriptions in 2024
| Prescriptions (claims) | 853 · 1,521 30-day fills |
|---|---|
| Patients | 304 |
| Total drug cost | $457,886 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | University of Nevada School of Medicine |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Gastroenterology |
Medical group
- Digestive Health AssociatesReno, NV · 37 clinicians
Hospital affiliations
- Carson Valley HealthGardnerville, NV
- Northern Nevada Medical CenterSparks, NV
- Renown Regional Medical CenterReno, NV
- Renown South Meadows Medical CenterReno, NV
- Saint Mary's Regional Medical CenterReno, NV
Industry payments (Open Payments)
- 2025$615.86 · 34 payments from 9 companies
- 2024$606.39 · 34 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $384.07 | 23 |
| Genzyme Corporation | $49.20 | 2 |
| Ipsen Biopharmaceuticals, Inc | $38.74 | 2 |
| Pfizer Inc. | $33.96 | 2 |
| Exact Sciences Corporation | $28.58 | 1 |
What the 2025 payments were for
- Food and Beverage$615.86 · 34 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in Reno
- 1053355545
- 1053584631
- 1104891910
- 1245294123
- 1295711414
- 1336448331
- 1346204641
- 1407832231
- 1457315764
- 1457368565
- 1497719405
- 1528039732
All 30 gastroenterologists in Reno · All gastroenterologists in Nevada