Mark Gabriel Hausmann, M.D.
NPI 1992819809ActiveIndividual· Surgery· Baton Rouge, LA
Surgery (M.D.) in Baton Rouge, Louisiana, trained at Louisiana State University School of Medicine in Shreveport (class of 1987). 85 Medicare patients in 2024, $41,707 paid; nearly all of their 102 Part D prescriptions were generic (96%). Ethicon US, LLC was the largest of 15 companies reporting payments in 2025, $11,721 in all, mostly consulting fees.
Overview
| NPI | 1992819809 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 18, 2006 |
| Last updated in NPPES | Mar 24, 2021 |
| Certified by provider | Mar 24, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 019550 | LA |
| Specialist | 174400000X | 019550 | LA |
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 - General Surgery (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 85 |
|---|---|
| Services billed | 191 across 52 procedure codes |
| Paid by Medicare | $41,707 |
Part D prescriptions in 2024
| Prescriptions (claims) | 102 · 132 30-day fills |
|---|---|
| Patients | 30 |
| Total drug cost | $3,347 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in Shreveport |
|---|---|
| Graduation year | 1987 |
| Medicare specialty | General Surgery |
Medical group
- Our Lady of the Lake Physician Group LLCBaton Rouge, LA · 644 clinicians
Hospital affiliation
- Our Lady of the Lake Regional Medical CenterBaton Rouge, LA
Industry payments (Open Payments)
- 2025$11,721 · 54 payments from 15 companies
- 2024$23,200 · 101 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ethicon US, LLC | $4,775 | 6 |
| Intuitive Surgical, Inc. | $4,150 | 2 |
| Davol Inc. | $1,271 | 11 |
| W. L. Gore & Associates, Inc. | $371.90 | 3 |
| Kerecis Limited | $334.30 | 6 |
What the 2025 payments were for
- Consulting Fee$4,365 · 1 payment
- Education$4,150 · 2 payments
- Food and Beverage$2,280 · 47 payments
- Travel and Lodging$925.70 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 56 general surgeons in Baton Rouge · All general surgeons in Louisiana