Chang Woo Park, MD
NPI 1235757543ActiveIndividual· Emergency Medicine· Elgin, IL
Emergency Medicine (MD) with Cepamerica Illinois LLP, practicing in Elgin, Illinois. 199 Medicare patients in 2024, $29,603 paid; nearly all of their 166 Part D prescriptions were generic (93%). Lists Saint Joseph Hospital-Elgin and 1 other hospital as hospital affiliations.
Overview
| NPI | 1235757543 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 13, 2020 |
| Last updated in NPPES | Jun 21, 2024 |
| Certified by provider | Jun 21, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 036.167509 | IL |
| Emergency Medicine | 207P00000X | 57.248924 | OH |
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 (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 199 |
|---|---|
| Services billed | 231 across 18 procedure codes |
| Paid by Medicare | $29,603 |
Part D prescriptions in 2024
| Prescriptions (claims) | 166 · 175 30-day fills |
|---|---|
| Patients | 132 |
| Total drug cost | $1,905 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical group
- Cepamerica Illinois LLPArlington Heights, IL · 499 clinicians
Hospital affiliations
- Saint Joseph Hospital-ElginElgin, IL
- Saint Joseph Medical CenterJoliet, 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 39 emergency medicine physicians in Elgin · All emergency medicine physicians in Illinois