Dianna L. Malkowski, PA
NPI 1811194699ActiveIndividual· Physician Assistant· Oshkosh, WI
Physician Assistant (PA) with Ascension Medical Group-Fox Valley Wisconsin, Inc, practicing in Oshkosh, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $438,276 for 5,817 claims, against $18,744 paid for services in 2024. Dexcom, Inc. was the largest of 3 companies reporting payments in 2025, $232.99 in all, mostly food and beverage. Lists Ascension Ne Wisconsin - St Elizabeth Campus as a hospital affiliation.
Overview
| NPI | 1811194699 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Jun 27, 2007 |
| Last updated in NPPES | Mar 26, 2025 |
| Certified by provider | Mar 26, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 2154 | 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 - Physician Assistant (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 83 |
|---|---|
| Services billed | 409 across 28 procedure codes |
| Paid by Medicare | $18,744 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,817 · 12,264 30-day fills |
|---|---|
| Patients | 397 |
| Total drug cost | $438,276 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Ascension Medical Group-Fox Valley Wisconsin, IncAppleton, WI · 259 clinicians
Hospital affiliation
- Ascension Ne Wisconsin - St Elizabeth CampusAppleton, WI
Other facilities
- Ascension at HomeHome health agency · Neenah, WI
Industry payments (Open Payments)
- 2025$232.99 · 4 payments from 3 companies
- 2024$13.36 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $140.70 | 2 |
| Madrigal Pharmaceuticals | $77.30 | 1 |
| Exact Sciences Corporation | $14.99 | 1 |
What the 2025 payments were for
- Food and Beverage$232.99 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 43 physician assistants in Oshkosh · All physician assistants in Wisconsin