Willemijntje Alexandra Hoogerwerf, MD
NPI 1548348089ActiveIndividual· Internal Medicine, Gastroenterology· St Augustine, FL
Internal Medicine, Gastroenterology (MD) with Borland Groover Clinic, PA, practicing in St Augustine, Florida. Their prescriptions cost Medicare Part D more than their services did: $1,176,285 for 1,675 claims, against $354,634 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 20 companies reporting payments in 2025, $2,388 in all, mostly food and beverage. Lists Adventhealth Palm Coast Parkway and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1548348089 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 1, 2006 |
| Last updated in NPPES | May 24, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | ME 104402 | FL |
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 - Gastroenterology (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 855 |
|---|---|
| Services billed | 13,864 across 46 procedure codes |
| Paid by Medicare | $354,634 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,675 · 3,328 30-day fills |
|---|---|
| Patients | 571 |
| Total drug cost | $1,176,285 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 1992 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Borland Groover Clinic, PAOrmond Beach, FL · 130 clinicians
Hospital affiliations
- Adventhealth Palm Coast ParkwayPalm Coast, FL
- Adventhealth Palm CoastPalm Coast, FL
- Flagler HospitalSaint Augustine, FL
Other facilities
- Brooks Rehabilitation Hospital University CampusInpatient rehabilitation facility · Jacksonville, FL
Industry payments (Open Payments)
- 2025$2,388 · 104 payments from 20 companies
- 2024$1,727 · 82 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $447.23 | 14 |
| Abbvie Inc. | $385.82 | 22 |
| Takeda Pharmaceuticals U.S.A., Inc. | $263.08 | 15 |
| Medtronic, Inc. | $202.82 | 1 |
| Janssen Biotech, Inc. | $198.98 | 12 |
What the 2025 payments were for
- Food and Beverage$2,388 · 104 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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