Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Christos S Giannoulias, MD/MS

Individual provider Orthopaedic Surgery Physician · NPI 1336198357

Dr. Christos S Giannoulias, MD/MS practises Orthopedic Surgery in Elmhurst, Illinois. Qualified in 1998, 28 years ago. Practices with G and T Orthopaedics and Sports Medicine, a 3-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
28
Licensed in
IL
In the registry since
2006
Specialties on file
2
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Practice location Address checks out

1200 S York Rd Ste 4190
Elmhurst, IL 60126-5626 Not confirmed with CMS for 11 years — call before visiting
Phone: (630) 782-1174
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 036104649 (IL)
Sports Medicine (Orthopaedic Surgery) Physician Taxonomy 207XX0005X · Licence 036104649 (IL)

Record details

NPI number1336198357
Entity typeIndividual (Type 1)
GenderMale
Credentials MD/MS
Sole proprietorNo
NPI enumeratedMay 8, 2006
Last updated in NPPESApril 30, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice G And T Orthopaedics And Sports Medicine — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Lower limb (leg) arthroscopy (minimally invasive joint repair) 1–10 times
Upper limb (arm) arthroscopy (minimally invasive joint repair) 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients101
Services billed 6,545 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at G and T Orthopaedics and Sports Medicine

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Elmhurst