Donna M. Grenfell, PA
NPI 1700801107ActiveIndividual· Physician Assistant· De Pere, WI
Physician Assistant (PA) with St Vincent Hospital-Hospital Sisters-Third Order of St Francis, practicing in De Pere, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $231,650 for 4,716 claims, against $19,797 paid for services in 2024. Dexcom, Inc. reported $132.34 in payments in 2025, mostly food and beverage. Lists St Marys Hospital Medical Ctr and 1 other hospital as hospital affiliations.
Overview
| NPI | 1700801107 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Jul 13, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 690 | 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 - Physician Assistant (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 153 |
|---|---|
| Services billed | 506 across 29 procedure codes |
| Paid by Medicare | $19,797 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,716 · 10,066 30-day fills |
|---|---|
| Patients | 574 |
| Total drug cost | $231,650 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- St Vincent Hospital-Hospital Sisters-Third Order of St FrancisGreen Bay, WI · 603 clinicians
Hospital affiliations
- St Marys Hospital Medical CtrGreen Bay, WI
- St Vincent HospitalGreen Bay, WI
Other facilities
- Unity HospiceHospice · De Pere, WI
Industry payments (Open Payments)
- 2025$132.34 · 2 payments from 1 company
- 2024$108.75 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $132.34 | 2 |
What the 2025 payments were for
- Food and Beverage$132.34 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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