Christos Argirios Katsigiannis, MD
NPI 1194725234ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Houston, TX
Thoracic Surgery (Cardiothoracic Vascular Surgery) (MD) in Houston, Texas, trained at Texas Tech University Health Science Center School of Medicine (class of 1990). 162 Medicare patients in 2024, $257,144 paid; all of their 53 Part D prescriptions were generic. Biotronik Inc. was the largest of 2 companies reporting payments in 2025, $85.02 in all, mostly food and beverage.
Overview
| NPI | 1194725234 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 29, 2005 |
| Last updated in NPPES | Dec 17, 2024 |
| Certified by provider | Dec 17, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | J0036 | TX |
| Specialist | 174400000X | J0036 | TX |
| Radiology, Vascular & Interventional Radiology | 2085R0204X | J0036 | TX |
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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 162 |
|---|---|
| Services billed | 1,002 across 48 procedure codes |
| Paid by Medicare | $257,144 |
Part D prescriptions in 2024
| Prescriptions (claims) | 53 · 53 30-day fills |
|---|---|
| Patients | 48 |
| Total drug cost | $354.92 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Texas Tech University Health Science Center School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Thoracic Surgery |
| Secondary specialties | Cardiac Surgery, Peripheral Vascular Disease, Vascular Surgery |
Medical group
- J Pedro Frommer MD PAHouston, TX · 4 clinicians
Hospital affiliation
- Ad Hospital East, LLCHouston, TX
Industry payments (Open Payments)
- 2025$85.02 · 3 payments from 2 companies
- 2024$30.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biotronik Inc. | $66.25 | 1 |
| Cook Medical LLC | $18.77 | 2 |
What the 2025 payments were for
- Food and Beverage$85.02 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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