Gary Louis Parenteau, MD
NPI 1508841172ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Lima, OH
Thoracic Surgery (Cardiothoracic Vascular Surgery) (MD) in Lima, Ohio, trained at University of Michigan Medical School (class of 1986). Medicare paid $2,259 for services to 15 patients in 2024.
Overview
| NPI | 1508841172 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 7, 2005 |
| Last updated in NPPES | Nov 5, 2020 |
| Certified by provider | Nov 5, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | 35071085P | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Thoracic Surgery (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 15 |
|---|---|
| Services billed | 16 across 4 procedure codes |
| Paid by Medicare | $2,259 |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Thoracic Surgery |
Medical group
- Mercy Health Physicians Lima Specialty Care LLCLima, OH · 253 clinicians
Hospital affiliation
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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