William E. Cayley Jr., MD MDIV
NPI 1053340067ActiveIndividual· Family Medicine· Eau Claire, WI
Family Medicine (MD MDIV) in Eau Claire, Wisconsin, trained at Medical College of Wisconsin (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $228,979 for 3,108 claims, against $28,305 paid for services in 2024.
Overview
| NPI | 1053340067 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD MDIV |
| Sole proprietor | No |
| NPI issued | Jul 2, 2006 |
| Last updated in NPPES | Jan 22, 2026 |
| Certified by provider | Jan 22, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 39025-20 | WI |
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 - Family Practice (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 165 |
|---|---|
| Services billed | 825 across 80 procedure codes |
| Paid by Medicare | $28,305 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,108 · 5,250 30-day fills |
|---|---|
| Patients | 206 |
| Total drug cost | $228,979 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Family Practice |
Medical group
- Oakleaf Clinics IncRice Lake, WI · 103 clinicians
Hospital affiliations
- Mayo Clinic Health System OakridgeOsseo, WI
- Oakleaf Surgical HospitalAltoona, WI
Other facilities
- Aveanna Home HealthHome health agency · Eau Claire, WI
- St Croix Hospice Eau ClaireHospice · Eau Claire, 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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