Adam Charles Tzagournis, MD
NPI 1003863440ActiveIndividual· Internal Medicine, Gastroenterology· Columbus, OH
Internal Medicine, Gastroenterology (MD) in Columbus, Ohio, trained at Ohio State University College of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $964,232 for 1,391 claims, against $64,646 paid for services in 2024. Abbvie Inc. was the largest of 19 companies reporting payments in 2025, $3,790 in all, mostly food and beverage.
Overview
| NPI | 1003863440 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | May 30, 2006 |
| Last updated in NPPES | Jun 12, 2025 |
| Certified by provider | Jun 12, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 35067389 | OH |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 369 |
|---|---|
| Services billed | 864 across 37 procedure codes |
| Paid by Medicare | $64,646 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,391 · 2,625 30-day fills |
|---|---|
| Patients | 460 |
| Total drug cost | $964,232 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | Ohio State University College of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical groups
- Ohiohealth CorporationColumbus, OH · 2,314 clinicians
- Mount Carmel Healthproviders Two LLCDublin, OH · 225 clinicians
- Digestive Associates of OhioColumbus, OH · 5 clinicians
Hospital affiliations
- Grant Medical CenterColumbus, OH
- Mount Carmel DublinDublin, OH
- Mount Carmel East & WestColumbus, OH
- Riverside Methodist HospitalColumbus, OH
Industry payments (Open Payments)
- 2025$3,790 · 181 payments from 19 companies
- 2024$3,300 · 154 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $1,258 | 56 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $436.33 | 27 |
| Takeda Pharmaceuticals U.S.A., Inc. | $388.89 | 23 |
| Genzyme Corporation | $374.86 | 11 |
| Neuraxis, Inc. | $276.39 | 1 |
What the 2025 payments were for
- Food and Beverage$3,790 · 181 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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