Marek N. Denisiuk, DO
NPI 1518457860ActiveIndividual· Orthopaedic Surgery· Dover, DE
Orthopaedic Surgery (DO) in Dover, Delaware, trained at Rowan University School of Osteopathic Medicine (class of 2018). Mostly services rather than prescriptions: Medicare paid $41,729 for 132 patients in 2024, with only 23 Part D claims. Smith+nephew, Inc. was the largest of 2 companies reporting payments in 2025, $389.74 in all, mostly food and beverage.
Overview
| NPI | 1518457860 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 12, 2018 |
| Last updated in NPPES | Sep 18, 2024 |
| Certified by provider | Sep 11, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | C2-0024568 | DE |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (DE); Practitioner - Orthopedic Surgery (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 132 |
|---|---|
| Services billed | 226 across 62 procedure codes |
| Paid by Medicare | $41,729 |
Part D prescriptions in 2024
| Prescriptions (claims) | 23 · 23 30-day fills |
|---|---|
| Total drug cost | $119.31 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Rowan University School of Osteopathic Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Bayhealth Medical Center, IncDover, DE · 413 clinicians
Hospital affiliations
- Bayhealth Hospital, Sussex CampusMilford, DE
- Bayhealth Medical Center, Kent CampusDover, DE
- Beebe Medical CenterLewes, DE
Other facilities
- Amedisys Delaware, LLCHome health agency · Dover, DE
- Amedisys Home HealthHome health agency · Georgetown, DE
- Bayada Home Health Care at BayhealthHome health agency · Dover, DE
- Pam Rehabilitation Hospital of DoverInpatient rehabilitation facility · Dover, DE
Industry payments (Open Payments)
- 2025$389.74 · 5 payments from 2 companies
- 2024$932.55 · 14 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Smith+nephew, Inc. | $354.16 | 4 |
| Bone Support Inc. | $35.58 | 1 |
What the 2025 payments were for
- Food and Beverage$389.74 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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