Keith Vanoosterhout, MD
NPI 1851329957ActiveIndividual· Internal Medicine, Geriatric Medicine· Grand Rapids, MI
Internal Medicine, Geriatric Medicine (MD) in Grand Rapids, Michigan, trained at Wayne State University School of Medicine (class of 1979). Their prescriptions cost Medicare Part D more than their services did: $36,575 for 635 claims, against $3,404 paid for services in 2024.
Overview
| NPI | 1851329957 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 28, 2006 |
| Last updated in NPPES | Mar 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Geriatric Medicine Primary | 207RG0300X | 4301042561 | MI |
| Family Medicine | 207Q00000X | 4301042561 | 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 - Geriatric Medicine (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 22 |
|---|---|
| Services billed | 33 across 6 procedure codes |
| Paid by Medicare | $3,404 |
Part D prescriptions in 2024
| Prescriptions (claims) | 635 · 638 30-day fills |
|---|---|
| Patients | 51 |
| Total drug cost | $36,575 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 1979 |
| Medicare specialty | Geriatric Medicine |
| Secondary specialties | Family Practice |
Medical group
- Saint Mary's Health ServicesGrand Rapids, MI · 173 clinicians
Other facilities
- Emmanuel HospiceHospice · Grand Rapids, MI
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 16 geriatricians in Grand Rapids · All geriatricians in Michigan