Brett Thomas Vander Baan, MD
NPI 1346735784ActiveIndividual· Internal Medicine· Holland, MI
Internal Medicine (MD) with Holland Community Hospital, practicing in Holland, Michigan. 203 Medicare patients in 2024, $40,472 paid; nearly all of their 327 Part D prescriptions were generic (93%). Grifols USA, LLC reported $40.26 in payments in 2025, mostly food and beverage. Lists Holland Hospital as a hospital affiliation.
Overview
| NPI | 1346735784 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 27, 2018 |
| Last updated in NPPES | Oct 1, 2021 |
| Certified by provider | Oct 1, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 4301115573 | MI |
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 - Internal Medicine (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 203 |
|---|---|
| Services billed | 492 across 13 procedure codes |
| Paid by Medicare | $40,472 |
Part D prescriptions in 2024
| Prescriptions (claims) | 327 · 347 30-day fills |
|---|---|
| Patients | 176 |
| Total drug cost | $14,506 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hospitalist |
Medical group
- Holland Community HospitalGrand Haven, MI · 178 clinicians
Hospital affiliation
- Holland HospitalHolland, MI
Industry payments (Open Payments)
- 2025$40.26 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Grifols USA, LLC | $40.26 | 2 |
What the 2025 payments were for
- Food and Beverage$40.26 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 42 internal medicine physicians in Holland · All internal medicine physicians in Michigan