Mark John Ghilarducci, M.D.
NPI 1922063700ActiveIndividual· Orthopaedic Surgery, Sports Medicine· Oxnard, CA
Orthopaedic Surgery, Sports Medicine (M.D.) in Oxnard, California, trained at University of Southern California Keck School of Medicine (class of 1985). 473 Medicare patients in 2024, $176,789 paid; nearly all of their 552 Part D prescriptions were generic (99%). Bioventus LLC reported $19.72 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1922063700 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 18, 2006 |
| Last updated in NPPES | Jul 14, 2025 |
| Certified by provider | Jul 14, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Sports Medicine Primary | 207XX0005X | G59002 | CA |
| Orthopaedic Surgery, Adult Reconstructive Orthopaedic Surgery | 207XS0114X | G59002 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 473 |
|---|---|
| Services billed | 6,319 across 85 procedure codes |
| Paid by Medicare | $176,789 |
Part D prescriptions in 2024
| Prescriptions (claims) | 552 · 572 30-day fills |
|---|---|
| Patients | 186 |
| Total drug cost | $9,439 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Ventura Orthopedics Medical Group IncOxnard, CA · 72 clinicians
Hospital affiliation
- St Johns Regional Medical CenterOxnard, CA
Industry payments (Open Payments)
- 2025$19.72 · 1 payment from 1 company
- 2024$665.04 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bioventus LLC | $19.72 | 1 |
What the 2025 payments were for
- Food and Beverage$19.72 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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