Mark Stephen Hall, M.D.
NPI 1740407873ActiveIndividual· Emergency Medicine· Naperville, IL
Emergency Medicine (M.D.) in Naperville, Illinois, licensed in IL, with an NPI issued in April 2007. 156 Medicare patients in 2024, $17,364 paid; nearly all of their 183 Part D prescriptions were generic (90%).
Overview
| NPI | 1740407873 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 19, 2007 |
| Last updated in NPPES | Jan 20, 2022 |
| Certified by provider | Jan 20, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 036105135 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Emergency Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 156 |
|---|---|
| Services billed | 300 across 34 procedure codes |
| Paid by Medicare | $17,364 |
Part D prescriptions in 2024
| Prescriptions (claims) | 183 · 186 30-day fills |
|---|---|
| Patients | 123 |
| Total drug cost | $2,724 |
| Generic share | 90% 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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