Gregory J. Matthews, MD
NPI 1770524746ActiveIndividual· Family Medicine· Brown Deer, WI
Family Medicine (MD) in Brown Deer, Wisconsin, trained at Medical College of Wisconsin (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $399,957 for 6,730 claims, against $22,170 paid for services in 2024. Exact Sciences Corporation reported $28.09 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1770524746 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 9, 2006 |
| Last updated in NPPES | Jun 12, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 32337 | 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 | 160 |
|---|---|
| Services billed | 364 across 13 procedure codes |
| Paid by Medicare | $22,170 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,730 · 13,623 30-day fills |
|---|---|
| Patients | 540 |
| Total drug cost | $399,957 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Family Practice |
Medical group
- Columbia St Marys Hospital Milwaukee IncMilwaukee, WI · 306 clinicians
Hospital affiliations
- Ascension Columbia St Marys Hospital MilwaukeeMilwaukee, WI
- Ascension Se Wisconsin HospitalMilwaukee, WI
Industry payments (Open Payments)
- 2025$28.09 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $28.09 | 1 |
What the 2025 payments were for
- Food and Beverage$28.09 · 1 payment
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