Nicholas J. Zarkadis, D.O.
NPI 1033558259ActiveIndividual· Orthopaedic Surgery· Columbia, MO
Orthopaedic Surgery (D.O.) with Mercy Clinic Surgical Specialists LLC and 1 other group, practicing in Columbia, Missouri. 73 Medicare patients in 2024, $16,887 paid; nearly all of their 247 Part D prescriptions were generic (97%). Smith+nephew, Inc. was the largest of 6 companies reporting payments in 2025, $9,359 in all, mostly grants. Lists Barnes-Jewish St Peters Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1033558259 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jun 20, 2013 |
| Last updated in NPPES | Jul 11, 2024 |
| Certified by provider | Jul 11, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 2019016580 | MO |
| Orthopaedic Surgery | 207X00000X | 1205 | NE |
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 (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 73 |
|---|---|
| Services billed | 105 across 34 procedure codes |
| Paid by Medicare | $16,887 |
Part D prescriptions in 2024
| Prescriptions (claims) | 247 · 253 30-day fills |
|---|---|
| Patients | 63 |
| Total drug cost | $4,187 |
| Generic share | 97% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Orthopedic Surgery |
Medical groups
- Mercy Clinic Surgical Specialists LLCSaint Louis, MO · 182 clinicians
- St Peters Bone and Joint Surgery IncO Fallon, MO · 26 clinicians
Hospital affiliations
- Barnes-Jewish St Peters HospitalSaint Peters, MO
- Mercy Hospital LincolnTroy, MO
- Progress West HospitalOfallon, MO
- St Lukes HospitalChesterfield, MO
Other facilities
- Ssm Health Rehabilitation HospitalInpatient rehabilitation facility · Richmond Heights, MO
Industry payments (Open Payments)
- 2025$9,359 · 26 payments from 6 companies
- 2024$10,941 · 29 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Smith+nephew, Inc. | $7,500 | 1 |
| Stryker Corporation | $817.87 | 10 |
| Zimmer Biomet Holdings, Inc. | $455.74 | 7 |
| Depuy Synthes Sales Inc. | $332.64 | 6 |
| Sanara Medtech Inc. | $150.64 | 1 |
What the 2025 payments were for
- Grant$7,500 · 1 payment
- Food and Beverage$1,806 · 23 payments
- Travel and Lodging$52.97 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 59 orthopedic surgeons in Columbia · All orthopedic surgeons in Missouri