Justin Macmillan, DO
NPI 1467080994ActiveIndividual· Internal Medicine· Elgin, IL
Internal Medicine (DO) in Elgin, Illinois, trained at Midwestern University, Chicago College of Osteopathic Med (class of 2020). 315 Medicare patients in 2024, $60,814 paid; nearly all of their 88 Part D prescriptions were generic (92%).
Overview
| NPI | 1467080994 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Mar 30, 2020 |
| Last updated in NPPES | Sep 8, 2023 |
| Certified by provider | Sep 8, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036.162688 | IL |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
| Internal Medicine | 207R00000X | 125.076402 | 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 - Internal Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 315 |
|---|---|
| Services billed | 541 across 14 procedure codes |
| Paid by Medicare | $60,814 |
Part D prescriptions in 2024
| Prescriptions (claims) | 88 · 117 30-day fills |
|---|---|
| Patients | 47 |
| Total drug cost | $2,716 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Midwestern University, Chicago College of Osteopathic Med |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Internal Medicine |
Medical group
- Advocate Health and Hospitals CorporationChicago, IL · 3,118 clinicians
Hospital affiliation
- Advocate Sherman HospitalElgin, IL
Other facilities
- Advocate HospiceHospice · Oak Brook, IL
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Elgin
- 1003496597
- 1013010628
- 1063529832
- 1073194031
- 1083173223
- 1093177024
- 1184019564
- 1215197785
- 1457573347
- 1487150389
- 1487623716
- 1487717492
All 85 internal medicine physicians in Elgin · All internal medicine physicians in Illinois