James E. Mace Jr., MD
NPI 1427256163ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Milwaukee, WI
Thoracic Surgery (Cardiothoracic Vascular Surgery) (MD) with The Medical College of Wisconsin Inc, practicing in Milwaukee, Wisconsin. Mostly services rather than prescriptions: Medicare paid $59,886 for 52 patients in 2024, with only 19 Part D claims. Abbott Laboratories was the largest of 3 companies reporting payments in 2025, $454.37 in all, mostly food and beverage. Lists Froedtert Memorial Lutheran Hospital as a hospital affiliation.
Overview
| NPI | 1427256163 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 4, 2007 |
| Last updated in NPPES | Nov 2, 2020 |
| Certified by provider | Nov 2, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | 74334 | WI |
| Surgery | 208600000X | 36821 | AL |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) | 208G00000X | 36821 | AL |
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 (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 52 |
|---|---|
| Services billed | 130 across 44 procedure codes |
| Paid by Medicare | $59,886 |
Part D prescriptions in 2024
| Prescriptions (claims) | 19 · 39 30-day fills |
|---|---|
| Patients | 12 |
| Total drug cost | $222.25 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | General Surgery |
Medical group
- The Medical College of Wisconsin IncMilwaukee, WI · 2,115 clinicians
Hospital affiliation
- Froedtert Memorial Lutheran HospitalMilwaukee, WI
Other facilities
- Horizon Home Care and HospiceHome health agency · Milwaukee, WI
Industry payments (Open Payments)
- 2025$454.37 · 5 payments from 3 companies
- 2024$1,046 · 11 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $230.29 | 3 |
| On Target Laboratories, Inc | $112.47 | 1 |
| Baxter Healthcare | $111.61 | 1 |
What the 2025 payments were for
- Food and Beverage$454.37 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 45 cardiothoracic surgeons in Milwaukee · All cardiothoracic surgeons in Wisconsin