Stephen Peter Kayiaros, MD
NPI 1669699542ActiveIndividual· Orthopaedic Surgery· Princeton, NJ
Orthopaedic Surgery (MD) in Princeton, New Jersey, trained at Rutgers New Jersey Medical School (class of 2005). 695 Medicare patients in 2024, $389,843 paid; nearly all of their 576 Part D prescriptions were generic (97%). Medical Device Business Services, Inc. was the largest of 7 companies reporting payments in 2025, $4,036 in all, mostly consulting fees.
Overview
| NPI | 1669699542 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 20, 2007 |
| Last updated in NPPES | Jun 15, 2020 |
| Certified by provider | Jun 15, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 25MA09077600 | NJ |
| Orthopaedic Surgery, Adult Reconstructive Orthopaedic Surgery | 207XS0114X | 25MA09077600 | NJ |
| Orthopaedic Surgery, Orthopaedic Trauma | 207XX0801X | 25MA09077600 | NJ |
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 (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 695 |
|---|---|
| Services billed | 5,103 across 58 procedure codes |
| Paid by Medicare | $389,843 |
Part D prescriptions in 2024
| Prescriptions (claims) | 576 · 703 30-day fills |
|---|---|
| Patients | 236 |
| Total drug cost | $14,441 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | Rutgers New Jersey Medical School |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Orthonj LLCSomerset, NJ · 304 clinicians
Hospital affiliations
- Hunterdon Medical CenterFlemington, NJ
- Jfk University Medical CenterEdison, NJ
- Robert Wood Johnson University Hospital - SomersetSomerville, NJ
- Saint Peter's University HospitalNew Brunswick, NJ
- St Joseph's University Medical Center IncPaterson, NJ
Other facilities
- Hackensack Meridian at Home Monmouth CountyHome health agency · Neptune, NJ
- Hackensack Meridian Jfk at HomeHome health agency · Iselin, NJ
- Robert Wood Johnson Visiting Nurses, IncHome health agency · North Brunswick, NJ
- Visiting Nurse Assoc of Northern New Jersey, IncHome health agency · Morristown, NJ
- Visiting Nurse Association of Central Jersey Home Care and HospiceHome health agency · Toms River, NJ
- Kessler Rehab CenterInpatient rehabilitation facility · West Orange, NJ
Industry payments (Open Payments)
- 2025$4,036 · 14 payments from 7 companies
- 2024$10,817 · 26 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medical Device Business Services, Inc. | $2,447 | 3 |
| Omnilife Science, Inc | $900.00 | 2 |
| Zimmer Biomet Holdings, Inc. | $235.55 | 2 |
| Depuy Synthes Sales Inc. | $217.21 | 2 |
| Stryker Corporation | $176.15 | 2 |
What the 2025 payments were for
- Consulting Fee$3,240 · 3 payments
- Food and Beverage$796.31 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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