George John Koullias, MD
NPI 1992986509ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· East Patchogue, NY
Thoracic Surgery (Cardiothoracic Vascular Surgery) (MD) with Chs Physician Partners PC, practicing in East Patchogue, New York. Mostly services rather than prescriptions: Medicare paid $100,028 for 520 patients in 2024, with only 44 Part D claims. Organogenesis Inc. was the largest of 16 companies reporting payments in 2025, $33,702 in all, mostly consulting fees. Lists St Catherine of Siena Hospital as a hospital affiliation.
Overview
| NPI | 1992986509 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 26, 2007 |
| Last updated in NPPES | Nov 14, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | 036119605 | IL |
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 - Vascular Surgery (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 520 |
|---|---|
| Services billed | 1,048 across 87 procedure codes |
| Paid by Medicare | $100,028 |
Part D prescriptions in 2024
| Prescriptions (claims) | 44 · 44 30-day fills |
|---|---|
| Patients | 21 |
| Total drug cost | $6,758 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Vascular Surgery |
Medical group
- Chs Physician Partners PCRoslyn, NY · 743 clinicians
Hospital affiliation
- St Catherine of Siena HospitalSmithtown, NY
Other facilities
- Catholic Home CareHome health agency · Farmingdale, NY
Industry payments (Open Payments)
- 2025$33,702 · 70 payments from 16 companies
- 2024$62,315 · 81 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Organogenesis Inc. | $11,104 | 17 |
| Lemaitre Vascular, Inc. | $10,750 | 4 |
| Convatec Inc. | $8,219 | 4 |
| Medtronic, Inc. | $1,825 | 3 |
| Integra Lifesciences Corporation | $427.00 | 2 |
What the 2025 payments were for
- Consulting Fee$27,360 · 7 payments
- Food and Beverage$2,111 · 56 payments
- Travel and Lodging$2,036 · 5 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$1,800 · 1 payment
- Long term medical supply or device loan$394.59 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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