Willard B. Denhouter, M.D.
NPI 1730152729ActiveIndividual· Internal Medicine· Plymouth, MI
Internal Medicine (M.D.) in Plymouth, Michigan, trained at Wayne State University School of Medicine (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $1,861,239 for 18,337 claims, against $61,322 paid for services in 2024.
Overview
| NPI | 1730152729 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 9, 2006 |
| Last updated in NPPES | Jul 21, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 4301047353 | MI |
| Internal Medicine | 207R00000X | WD047353 | 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 | 406 |
|---|---|
| Services billed | 1,371 across 36 procedure codes |
| Paid by Medicare | $61,322 |
Part D prescriptions in 2024
| Prescriptions (claims) | 18,337 · 40,773 30-day fills |
|---|---|
| Patients | 1,068 |
| Total drug cost | $1,861,239 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Iha Health Services CorporationPontiac, MI · 1,168 clinicians
Hospital affiliations
- Chelsea HospitalChelsea, MI
- St Joe Mercy Hospital System LivoniaLivonia, MI
- Trinity Health Ann Arbor HospitalAnn Arbor, MI
- Trinity Health Livingston HospitalHowell, MI
Other facilities
- Trinity Health at Home- Southeast MichiganHome health agency · Livonia, 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 23 internal medicine physicians in Plymouth · All internal medicine physicians in Michigan