John Pacini, DO
NPI 1134232309ActiveIndividual· Emergency Medicine· McHenry, IL
Emergency Medicine (DO) in McHenry, Illinois, trained at Midwestern University, Chicago College of Osteopathic Med (class of 1996). 558 Medicare patients in 2024, $80,242 paid; nearly all of their 817 Part D prescriptions were generic (95%).
Overview
| NPI | 1134232309 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Aug 15, 2006 |
| Last updated in NPPES | Aug 8, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 036098116 | 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 - Emergency Medicine (CA); Practitioner - Emergency Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 558 |
|---|---|
| Services billed | 773 across 30 procedure codes |
| Paid by Medicare | $80,242 |
Part D prescriptions in 2024
| Prescriptions (claims) | 817 · 820 30-day fills |
|---|---|
| Patients | 428 |
| Total drug cost | $6,104 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Midwestern University, Chicago College of Osteopathic Med |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Emergency Medicine |
Medical group
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
Hospital affiliation
- Northwestern Medicine McHenryMcHenry, 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 32 emergency medicine physicians in McHenry · All emergency medicine physicians in Illinois