Michael F. Johnstone, MD
NPI 1982665394ActiveIndividual· Family Medicine· Brown Deer, WI
Family Medicine (MD) in Brown Deer, Wisconsin, licensed in WI, with an NPI issued in March 2006. Their prescriptions cost Medicare Part D more than their services did: $470,839 for 6,874 claims, against $12,549 paid for services in 2024.
Overview
| NPI | 1982665394 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 28, 2006 |
| Last updated in NPPES | Jun 12, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 25308 | 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 - Family Practice (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 119 |
|---|---|
| Services billed | 183 across 12 procedure codes |
| Paid by Medicare | $12,549 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,874 · 15,651 30-day fills |
|---|---|
| Patients | 543 |
| Total drug cost | $470,839 |
| Generic share | 89% of claims |
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 15 family medicine physicians in Brown Deer · All family medicine physicians in Wisconsin