Stephen Peter Kayiaros, MD
Orthopedic Surgery · Princeton, NJ
At a glance
211 N Harrison St, Princeton, NJ 08540-3530
Published activity: Hip replacement · Knee replacement. View counts and coverage
NPPES record updated Jun 15, 2020. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
211 N Harrison StPrinceton, NJ 08540-3530
Education & affiliations
- Medical / professional school
- Rutgers New Jersey Medical School
- Graduation year
- 2005
- CMS specialties
- Orthopedic Surgery
Practice groups
Reported hospital affiliations
- Hunterdon Medical Center Flemington, NJ
- Jfk University Medical Center Edison, NJ
- Robert Wood Johnson University Hospital - Somerset Somerville, NJ
- Saint Peter's University Hospital New Brunswick, NJ
- St Joseph's University Medical Center Inc Paterson, NJ
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Hip replacement | 129 |
| Knee replacement | 105 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Consulting fee | $3,240.00 |
| Food and beverage | $796.31 |
Reporting companies
| Company | Amount |
|---|---|
| MEDICAL DEVICE BUSINESS SERVICES, INC. | $2,447.04 |
| OMNILIFE SCIENCE, INC | $900.00 |
| ZIMMER BIOMET HOLDINGS, INC. | $235.55 |
| DEPUY SYNTHES SALES INC. | $217.21 |
| STRYKER CORPORATION | $176.15 |
| AVANOS MEDICAL | $43.51 |
| VERTEX PHARMACEUTICALS INCORPORATED | $16.85 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Orthopedic Surgery
- Taxonomy code
- 207X00000X
- Enumeration date
- Apr 20, 2007
- Record updated
- Jun 15, 2020
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
207XS0114X
License reported: 25MA09077600 NJ
207XX0801X
License reported: 25MA09077600 NJ
207X00000X · Primary
License reported: 25MA09077600 NJ
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
211 N Harrison StPrinceton, NJ 08540-3530
- Phone
- (609) 683-7800
- Fax
- (609) 683-7875
Mailing address
2 WORLDS FAIR DRSOMERSET, NJ 088731369
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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