Rebecca Jean Weissburg, PHYSICIAN ASSISTANT
NPI 1003549502ActiveIndividual· Physician Assistant· Janesville, WI
Physician Assistant (PHYSICIAN ASSISTANT) with Mercy Health System Corporation, practicing in Janesville, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $292,648 for 724 claims, against $25,503 paid for services in 2024. Abbvie Inc. was the largest of 8 companies reporting payments in 2025, $982.61 in all, mostly food and beverage. Lists Mercy Health System Corp as a hospital affiliation.
Overview
| NPI | 1003549502 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PHYSICIAN ASSISTANT |
| Sole proprietor | Yes |
| NPI issued | Jul 3, 2022 |
| Last updated in NPPES | Feb 25, 2026 |
| Certified by provider | Feb 25, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 7465-23 | WI |
| Physician Assistant, Medical | 363AM0700X | 7465-23 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 270 |
|---|---|
| Services billed | 959 across 40 procedure codes |
| Paid by Medicare | $25,503 |
Part D prescriptions in 2024
| Prescriptions (claims) | 724 · 808 30-day fills |
|---|---|
| Patients | 234 |
| Total drug cost | $292,648 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Mercy Health System CorporationJanesville, WI · 753 clinicians
Hospital affiliation
- Mercy Health System CorpJanesville, WI
Industry payments (Open Payments)
- 2025$982.61 · 80 payments from 8 companies
- 2024$709.32 · 32 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $418.19 | 52 |
| Sun Pharmaceutical Industries Inc. | $261.05 | 17 |
| Amgen Inc. | $143.36 | 3 |
| Leo Pharma Inc. | $72.00 | 3 |
| Lilly USA, LLC | $39.54 | 2 |
What the 2025 payments were for
- Food and Beverage$882.62 · 79 payments
- Education$99.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Physician Assistant providers in Janesville
- 1194411751
- 1366233041
- 1184213555
- 1467976696
- 1124305784
- 1114247517
- 1427700558
- 1760793012
- 1578527297
- 1861012692
- 1073611265
- 1043275720