William R. Cooper, MD
NPI 1023078037ActiveIndividual· Internal Medicine· Oconomowoc, WI
Internal Medicine (MD) in Oconomowoc, Wisconsin, trained at University of Wisconsin School of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $858,885 for 12,902 claims, against $117,196 paid for services in 2024.
Overview
| NPI | 1023078037 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 24, 2006 |
| Last updated in NPPES | Apr 16, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 49183 | 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 | 552 |
|---|---|
| Services billed | 2,086 across 47 procedure codes |
| Paid by Medicare | $117,196 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,902 · 24,545 30-day fills |
|---|---|
| Patients | 652 |
| Total drug cost | $858,885 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Internal Medicine |
Medical group
- Prohealth Medical Group IncMukwonago, WI · 479 clinicians
Hospital affiliations
- Oconomowoc Memorial HospitalOconomowoc, WI
- Waukesha Memorial HospitalWaukesha, WI
Other facilities
- Preceptor Home HealthHome health agency · Germantown, WI
- Prohealth Home CareHome health agency · Waukesha, WI
- Agrace HospicecareHospice · Madison, WI
- Brighton Hospice WisconsinHospice · Brookfield, WI
- Legacy HospiceHospice · Elm Grove, WI
- Prohealth Home HospiceHospice · Waukesha, WI
- Vitas Healthcare Corp MidwestHospice · Milwaukee, WI
- Shorehaven Hlth & Rehab CtrNursing home · Oconomowoc, WI
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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