O'Rell Ronald Williams, MD
NPI 1972559755ActiveIndividual· Internal Medicine· Milwaukee, WI
Internal Medicine (MD) in Milwaukee, Wisconsin, trained at University of Wisconsin School of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $420,213 for 4,632 claims, against $49,854 paid for services in 2024. Novo Nordisk Inc was the largest of 20 companies reporting payments in 2025, $1,717 in all, mostly food and beverage.
Overview
| NPI | 1972559755 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 25, 2006 |
| Last updated in NPPES | Sep 16, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 45383 | 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 | 277 |
|---|---|
| Services billed | 660 across 21 procedure codes |
| Paid by Medicare | $49,854 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,632 · 8,334 30-day fills |
|---|---|
| Patients | 429 |
| Total drug cost | $420,213 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Internal Medicine |
Medical groups
- Ascension Medical Group-Southeast Wisconsin IncBrookfield, WI · 545 clinicians
- Fort Healthcare IncFort Atkinson, WI · 155 clinicians
- Curana Health of Wisconsin IncHartford, WI · 45 clinicians
- Ch Specialty Services Wi SCHartford, WI · 16 clinicians
- Zenith Healthcare SCKenosha, WI · 13 clinicians
Hospital affiliations
- Ascension Se Wisconsin HospitalMilwaukee, WI
- Aurora Medical Center KenoshaKenosha, WI
- Fort Memorial HospitalFort Atkinson, WI
- Froedtert South Inc.Kenosha, WI
Other facilities
- Aurora at HomeHome health agency · Milwaukee, WI
- Compassus Green BayHospice · Green Bay, WI
- Compassus Milwaukee MetroHospice · Milwaukee, WI
- Compassus NeenahHospice · Neenah, WI
- Holistic HospiceHospice · Greenfield, WI
- St Croix Hospice WaukeshaHospice · Waukesha, WI
- Chi Franciscan VillaNursing home · South Milwaukee, WI
- Muskego Health and Rehabilitation CenterNursing home · Muskego, WI
Industry payments (Open Payments)
- 2025$1,717 · 92 payments from 20 companies
- 2024$1,330 · 79 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $369.66 | 16 |
| E.R. Squibb & Sons, L.L.C. | $185.72 | 19 |
| Kestra Medical Technology Services, Inc. | $170.93 | 3 |
| Lilly USA, LLC | $156.77 | 12 |
| Astrazeneca Pharmaceuticals LP | $149.64 | 11 |
What the 2025 payments were for
- Food and Beverage$1,717 · 92 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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