Daryl Len Oconnor, MD
NPI 1154323541ActiveIndividual· Orthopaedic Surgery· Elmhurst, IL
Orthopaedic Surgery (MD) with Osf Multi-Specialty Group and 1 other group, practicing in Elmhurst, Illinois. 419 Medicare patients in 2024, $190,679 paid; nearly all of their 317 Part D prescriptions were generic (99%). Zimmer Biomet Holdings, Inc. was the largest of 2 companies reporting payments in 2025, $552.32 in all, mostly food and beverage. Lists Elmhurst Memorial Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1154323541 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 15, 2005 |
| Last updated in NPPES | Feb 10, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 036-106488 | 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 - Orthopedic Surgery (IL); Practitioner - Orthopedic Surgery (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 419 |
|---|---|
| Services billed | 3,358 across 90 procedure codes |
| Paid by Medicare | $190,679 |
Part D prescriptions in 2024
| Prescriptions (claims) | 317 · 331 30-day fills |
|---|---|
| Patients | 171 |
| Total drug cost | $3,906 |
| Generic share | 99% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Orthopedic Surgery |
Medical groups
- Osf Multi-Specialty GroupMorton, IL · 2,114 clinicians
- Orthopedic Specialists SCElmhurst, IL · 10 clinicians
Hospital affiliations
- Elmhurst Memorial HospitalElmhurst, IL
- Osf Sacred Heart Medical CenterDanville, IL
Other facilities
- Aspire Home Healthcare, LLCHome health agency · Morton Grove, IL
- Residential Home HealthHome health agency · Lisle, IL
Industry payments (Open Payments)
- 2025$552.32 · 9 payments from 2 companies
- 2024$159.03 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zimmer Biomet Holdings, Inc. | $513.50 | 7 |
| Bioventus LLC | $38.82 | 2 |
What the 2025 payments were for
- Food and Beverage$552.32 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 20 orthopedic surgeons in Elmhurst · All orthopedic surgeons in Illinois