James Michael Walker, M.D.
NPI 1255360608ActiveIndividual· Radiology, Diagnostic Radiology· Milwaukee, WI
Radiology, Diagnostic Radiology (M.D.) in Milwaukee, Wisconsin, trained at University of Michigan Medical School (class of 1999). Medicare paid $54,610 for services to 1,158 patients in 2024. Ge Healthcare reported $2,483 in payments in 2025, mostly consulting fees.
Overview
| NPI | 1255360608 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 30, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | 48031-020 | WI |
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 - Diagnostic Radiology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,158 |
|---|---|
| Services billed | 3,767 across 170 procedure codes |
| Paid by Medicare | $54,610 |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Diagnostic Radiology |
Medical groups
- Prohealth Medical Group IncMukwonago, WI · 479 clinicians
- Radiology Waukesha SCWaukesha, WI · 29 clinicians
Hospital affiliations
- Froedtert Memorial Lutheran HospitalMilwaukee, WI
- Oconomowoc Memorial HospitalOconomowoc, WI
- Watertown Memorial HospitalWatertown, WI
- Waukesha Memorial HospitalWaukesha, WI
Industry payments (Open Payments)
- 2025$2,483 · 6 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ge Healthcare | $2,483 | 6 |
What the 2025 payments were for
- Consulting Fee$2,483 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 234 diagnostic radiologists in Milwaukee · All diagnostic radiologists in Wisconsin