Michael D. Johnson, MD
NPI 1689642845ActiveIndividual· Internal Medicine· Sheboygan, WI
Internal Medicine (MD) in Sheboygan, Wisconsin, trained at Ohio State University College of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $384,054 for 1,899 claims, against $168,681 paid for services in 2024. Amgen Inc. reported $28.65 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1689642845 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 14, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 42241020 | WI |
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 (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 443 |
|---|---|
| Services billed | 4,818 across 117 procedure codes |
| Paid by Medicare | $168,681 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,899 · 4,306 30-day fills |
|---|---|
| Patients | 442 |
| Total drug cost | $384,054 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Ohio State University College of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Internal Medicine |
Medical group
- Sheboygan Physicians Group S.C.Sheboygan, WI · 15 clinicians
Hospital affiliations
- Aurora Medical Center Sheboygan CountySheboygan, WI
- St Nicholas HospitalSheboygan, WI
- St Vincent HospitalGreen Bay, WI
Other facilities
- Fresenius Kidney Care SheboyganDialysis facility · Sheboygan, WI
- Hshs Home Care WisconsinHome health agency · Green Bay, WI
Industry payments (Open Payments)
- 2025$28.65 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $28.65 | 1 |
What the 2025 payments were for
- Food and Beverage$28.65 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 27 internal medicine physicians in Sheboygan · All internal medicine physicians in Wisconsin