John Mantzouranis Trahanas, M.D.
NPI 1699067819ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Nashville, TN
Thoracic Surgery (Cardiothoracic Vascular Surgery) (M.D.) with Vanderbilt University Medical Center, practicing in Nashville, Tennessee. Mostly services rather than prescriptions: Medicare paid $170,985 for 192 patients in 2024, with only 30 Part D claims. Artivion, Inc. was the largest of 6 companies reporting payments in 2025, $6,075 in all, mostly travel and lodging. Lists Maury Regional Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1699067819 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 5, 2011 |
| Last updated in NPPES | Mar 14, 2022 |
| Certified by provider | Mar 14, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | 63931 | TN |
| Surgery | 208600000X | 63931 | TN |
| Surgery, Surgical Critical Care | 2086S0102X | 63931 | TN |
| Student in an Organized Health Care Education/Training Program | 390200000X | 4301105634 | MI |
| Student in an Organized Health Care Education/Training Program | 390200000X | 2833341 | NY |
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 - Thoracic Surgery (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 192 |
|---|---|
| Services billed | 370 across 63 procedure codes |
| Paid by Medicare | $170,985 |
Part D prescriptions in 2024
| Prescriptions (claims) | 30 · 43 30-day fills |
|---|---|
| Patients | 21 |
| Total drug cost | $224.91 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Thoracic Surgery |
| Secondary specialties | Cardiac Surgery, General Surgery |
Medical group
- Vanderbilt University Medical CenterNashville, TN · 3,567 clinicians
Hospital affiliations
- Maury Regional HospitalColumbia, TN
- Saint Thomas Rutherford HospitalMurfreesboro, TN
- Vanderbilt University Medical CenterNashville, TN
- Vanderbilt Wilson County HospitalLebanon, TN
- Williamson Medical CenterFranklin, TN
Industry payments (Open Payments)
- 2025$6,075 · 28 payments from 6 companies
- 2024$1,734 · 20 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Artivion, Inc. | $2,893 | 11 |
| W. L. Gore & Associates, Inc. | $1,899 | 10 |
| Bolton Medical Inc | $872.59 | 4 |
| Atricure, Inc. | $148.50 | 1 |
| Abbott Laboratories | $132.80 | 1 |
What the 2025 payments were for
- Travel and Lodging$3,757 · 12 payments
- Food and Beverage$2,318 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 52 cardiothoracic surgeons in Nashville · All cardiothoracic surgeons in Tennessee