Karl Brenner, M.D.
NPI 1033186770ActiveIndividual· Internal Medicine· Ann Arbor, MI
Internal Medicine (M.D.) in Ann Arbor, Michigan, trained at University of Michigan Medical School (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $1,074,945 for 9,979 claims, against $34,221 paid for services in 2024.
Overview
| NPI | 1033186770 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 1, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 4301067854 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 268 |
|---|---|
| Services billed | 855 across 29 procedure codes |
| Paid by Medicare | $34,221 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,979 · 23,475 30-day fills |
|---|---|
| Patients | 779 |
| Total drug cost | $1,074,945 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Iha Health Services CorporationPontiac, MI · 1,168 clinicians
Hospital affiliations
- Chelsea HospitalChelsea, MI
- St Joe Mercy Hospital System LivoniaLivonia, MI
- Trinity Health Ann Arbor HospitalAnn Arbor, MI
- Trinity Health Livingston HospitalHowell, MI
- University of Michigan Health SystemAnn Arbor, MI
Other facilities
- Elara CaringHome health agency · Jackson, MI
- Trinity Health at Home- Southeast MichiganHome health agency · Livonia, MI
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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