Patrick James Brennan, M.D.
NPI 1104876945ActiveIndividual· Surgery· Neenah, WI
Surgery (M.D.) in Neenah, Wisconsin, trained at University of Wisconsin School of Medicine (class of 1997). 151 Medicare patients in 2024, $26,972 paid; nearly all of their 166 Part D prescriptions were generic (98%). Integra Lifesciences Corporation was the largest of 4 companies reporting payments in 2025, $107.57 in all, mostly food and beverage.
Overview
| NPI | 1104876945 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 11, 2006 |
| Last updated in NPPES | May 8, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 44570 | WI |
| Surgery, Surgical Critical Care | 2086S0102X | 44570 | WI |
| Surgery, Trauma Surgery | 2086S0127X | 44570 | WI |
| Surgery, Vascular Surgery | 2086S0129X | 44570 | WI |
| Colon & Rectal Surgery | 208C00000X | 44570 | WI |
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 - General Surgery (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 151 |
|---|---|
| Services billed | 279 across 52 procedure codes |
| Paid by Medicare | $26,972 |
Part D prescriptions in 2024
| Prescriptions (claims) | 166 · 236 30-day fills |
|---|---|
| Patients | 102 |
| Total drug cost | $3,180 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | General Surgery |
| Secondary specialties | Colorectal Surgery (Proctology), Surgical Oncology, Thoracic Surgery, Vascular Surgery |
Medical group
- Surgical Associates of Neenah, S.C.Neenah, WI · 29 clinicians
Hospital affiliations
- Thedacare Medical Center - Berlin IncBerlin, WI
- Thedacare Medical Center - New LondonNew London, WI
- Thedacare Medical Center - ShawanoShawano, WI
- Thedacare Regional Med Ctr - NeenahNeenah, WI
- Thedacare Regional Medical Center - Appleton IncAppleton, WI
Industry payments (Open Payments)
- 2025$107.57 · 4 payments from 4 companies
- 2024$44.56 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Integra Lifesciences Corporation | $41.53 | 1 |
| Tela Bio, Inc. | $34.30 | 1 |
| Octapharma USA, Inc. | $16.45 | 1 |
| W. L. Gore & Associates, Inc. | $15.29 | 1 |
What the 2025 payments were for
- Food and Beverage$107.57 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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