Omar Atassi, M.D.
NPI 1154380046ActiveIndividual· Urology· Neenah, WI
Urology (M.D.) in Neenah, Wisconsin, trained at Loyola University of Chicago, Stritch School of Medicine (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $2,271,182 for 1,011 claims, against $106,980 paid for services in 2024. Astellas Pharma US Inc was the largest of 3 companies reporting payments in 2025, $77.04 in all, mostly food and beverage.
Overview
| NPI | 1154380046 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 21, 2006 |
| Last updated in NPPES | Aug 26, 2025 |
| Certified by provider | Aug 26, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | 37516-020 | 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 - Urology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 154 |
|---|---|
| Services billed | 3,077 across 49 procedure codes |
| Paid by Medicare | $106,980 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,011 · 1,841 30-day fills |
|---|---|
| Patients | 221 |
| Total drug cost | $2,271,182 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Urology |
Medical group
- Thedacare, IncorporatedWaupaca, WI · 647 clinicians
Hospital affiliations
- Thedacare Regional Med Ctr - NeenahNeenah, WI
- Thedacare Regional Medical Center - Appleton IncAppleton, WI
Industry payments (Open Payments)
- 2025$77.04 · 4 payments from 3 companies
- 2024$59.87 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $30.28 | 2 |
| Boston Scientific Corporation | $27.53 | 1 |
| Abbvie Inc. | $19.23 | 1 |
What the 2025 payments were for
- Food and Beverage$77.04 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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