Michael P. Siegenthaler, MD
NPI 1093863532ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Farmington, CT
Thoracic Surgery (Cardiothoracic Vascular Surgery) (MD) with Christus Trinity Clinic Texas and 3 other groups, practicing in Farmington, Connecticut. Mostly services rather than prescriptions: Medicare paid $73,456 for 117 patients in 2024, with only 30 Part D claims. Abiomed was the largest of 5 companies reporting payments in 2025, $789.68 in all, mostly food and beverage. Lists John Dempsey Hospital of the University of Connect and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1093863532 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 8, 2007 |
| Last updated in NPPES | Sep 16, 2026 |
| Certified by provider | Sep 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | 036842 | CT |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) | 208G00000X | D0068474 | MD |
| Surgery | 208600000X | L2653 | TX |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) | 208G00000X | L2653 | TX |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) | 208G00000X | MD430302 | PA |
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 - Thoracic Surgery (CT); Practitioner - Thoracic Surgery (OH); Practitioner - Thoracic Surgery (SD); Practitioner - Thoracic Surgery (TX); Practitioner - Cardiac Surgery (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 117 |
|---|---|
| Services billed | 349 across 54 procedure codes |
| Paid by Medicare | $73,456 |
Part D prescriptions in 2024
| Prescriptions (claims) | 30 · 49 30-day fills |
|---|---|
| Patients | 15 |
| Total drug cost | $4,198 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Thoracic Surgery |
Medical groups
- Christus Trinity Clinic TexasTyler, TX · 1,540 clinicians
- University of Connecticut Health CenterFarmington, CT · 639 clinicians
- Monument Health Rapid City Hospital IncRapid City, SD · 564 clinicians
- Mercy Health Physicians Springfield Specialty Care LLCSpringfield, OH · 135 clinicians
Hospital affiliations
- John Dempsey Hospital of the University of ConnectFarmington, CT
- Monument Health Rapid City HospitalRapid City, SD
- Springfield Regional Medical CenterSpringfield, OH
Industry payments (Open Payments)
- 2025$789.68 · 35 payments from 5 companies
- 2024$1,038 · 20 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abiomed | $285.96 | 5 |
| Atricure, Inc. | $246.85 | 26 |
| Medtronic, Inc. | $197.94 | 2 |
| Haemonetics Corporation | $41.48 | 1 |
| Bolton Medical Inc | $17.45 | 1 |
What the 2025 payments were for
- Food and Beverage$789.68 · 35 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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