Mary Simmons, MD
NPI 1457373946ActiveIndividual· Family Medicine· Belvidere, IL
Family Medicine (MD) in Belvidere, Illinois, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $375,941 for 4,746 claims, against $31,274 paid for services in 2024.
Overview
| NPI | 1457373946 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 24, 2006 |
| Last updated in NPPES | Feb 19, 2021 |
| Certified by provider | Feb 19, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 036105006 | IL |
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 (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 147 |
|---|---|
| Services billed | 765 across 39 procedure codes |
| Paid by Medicare | $31,274 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,746 · 10,485 30-day fills |
|---|---|
| Patients | 321 |
| Total drug cost | $375,941 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Family Practice |
Medical group
- Swedishamerican HospitalBelvidere, IL · 389 clinicians
Hospital affiliations
- Saint Anthony Medical CenterRockford, IL
- Uw HealthRockford, IL
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 31 family medicine physicians in Belvidere · All family medicine physicians in Illinois