John A. Feilbach, M.D.
NPI 1538191168ActiveIndividual· Internal Medicine· Grafton, WI
Internal Medicine (M.D.) with Aurora Advanced Healthcare, Inc., practicing in Grafton, Wisconsin. 119 Medicare patients in 2024, $7,464 paid; nearly all of their 141 Part D prescriptions were generic (92%).
Overview
| NPI | 1538191168 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 6, 2006 |
| Last updated in NPPES | Sep 24, 2026 |
| Certified by provider | Sep 24, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 33495 | 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 - Internal Medicine (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 119 |
|---|---|
| Services billed | 157 across 14 procedure codes |
| Paid by Medicare | $7,464 |
Part D prescriptions in 2024
| Prescriptions (claims) | 141 · 143 30-day fills |
|---|---|
| Patients | 124 |
| Total drug cost | $1,234 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Aurora Advanced Healthcare, Inc.Milwaukee, WI · 1,124 clinicians
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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