VASILI KARAS M.D.
NPI 1063778413
Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery in Chicago, IL
About Vasili Karas M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
VASILI KARAS M.D. (NPI 1063778413) is an individual adult reconstructive orthopaedic surgery provider in Chicago, Illinois, licensed in Illinois (036.142401) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Rush Oak Park Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Vasili Karas M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Vasili Karas reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60612
- Reassigned Medicare billing, Illinois and Indiana enrollments
- 178 clinicians in this Medicare group
Bannockburn, IL 60015
- Reassigned Medicare billing, Illinois enrollment
- 538 clinicians in this Medicare group
Rockford, IL 61107
- Reassigned Medicare billing, Illinois and Indiana enrollments
- 562 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 29
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Rush Oak Park Hospital
Acute Care Hospitals · Oak Park, ILRush University Medical Center
Acute Care Hospitals · Chicago, ILNorthwestern Medicine Central Dupage Hospital
Acute Care Hospitals · Winfield, ILMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Vasili Karas's NPI number?
The NPI number for Vasili Karas is 1063778413. It was assigned to this individual provider in the NPPES registry on April 10, 2012. The provider is also known as Vasilis Karas M.D..
Where is Vasili Karas located?
Vasili Karas practices at 1611 W Harrison St Ste 400, Chicago, IL 60612. The listed phone number is (312) 432-2300.
What is Vasili Karas's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Adult Reconstructive Orthopaedic Surgery, with taxonomy code 207XS0114X.
Is Vasili Karas enrolled in Medicare?
Yes. Vasili Karas is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Vasili Karas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Vasili Karas reassigns Medicare benefits to 3 organizations: Midwest Orthopaedics At Rush, LLC (Chicago, IL), Illinois Bone And Joint Institute LLC (Bannockburn, IL) and Orthomidwest, PLLC (Rockford, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Vasili Karas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Vasili Karas accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Vasili Karas as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Vasili Karas affiliated with any hospitals?
According to CMS data, Vasili Karas is affiliated with Rush Oak Park Hospital, Rush University Medical Center and Northwestern Medicine Central Dupage Hospital.
When was this NPI record last updated?
The NPPES record for Vasili Karas was last updated on January 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.