Thayer Nasereddin, MD
NPI 1215391701ActiveIndividual· Internal Medicine, Gastroenterology· Fort Wayne, IN
Internal Medicine, Gastroenterology (MD) with Indianapolis Gastroenterology LLC, practicing in Fort Wayne, Indiana. 345 Medicare patients in 2024, $137,234 paid; nearly all of their 669 Part D prescriptions were generic (91%). Ovesco Endoscopy USA, Inc. was the largest of 16 companies reporting payments in 2025, $2,145 in all, mostly food and beverage. Lists Franciscan Health Indianapolis and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1215391701 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 11, 2016 |
| Last updated in NPPES | May 11, 2023 |
| Certified by provider | May 11, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 01087422A | IN |
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 (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 345 |
|---|---|
| Services billed | 4,966 across 53 procedure codes |
| Paid by Medicare | $137,234 |
Part D prescriptions in 2024
| Prescriptions (claims) | 669 · 1,249 30-day fills |
|---|---|
| Patients | 219 |
| Total drug cost | $67,818 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Indianapolis Gastroenterology LLCIndianapolis, IN · 18 clinicians
Hospital affiliations
- Franciscan Health IndianapolisIndianapolis, IN
- Franciscan Health MooresvilleMooresville, IN
- Major HospitalShelbyville, IN
Industry payments (Open Payments)
- 2025$2,145 · 61 payments from 16 companies
- 2024$1,455 · 62 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ovesco Endoscopy USA, Inc. | $585.72 | 1 |
| Abbvie Inc. | $413.33 | 22 |
| Lumendi LLC | $224.48 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $198.32 | 10 |
| Boston Scientific Corporation | $191.93 | 2 |
What the 2025 payments were for
- Food and Beverage$1,559 · 60 payments
- Travel and Lodging$585.72 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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