George SianisMD
George Sianis, MD is a General Practice provider in Chicago, IL, as of July 2026.
- NPI1255366191
- Registered2006
- Class of1973
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
George Sianis at a glance
- Provider
- George Sianis
- Credential
- MD
- Specialty
- General Practice
- Procedures
- General Practice CPT codes
- Location
- Chicago, IL
- Medical school graduation
- 1973
- NPI registered
- 2006
- NPI
- 1255366191
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does George Sianis practice?
George Sianis, MD is based in Chicago, IL. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is George Sianis's NPI number?
George Sianis's National Provider Identifier (NPI) is 1255366191, registered in 2006. Specialty on record: General Practice; credential MD.
How many General Practice providers in Illinois work at ambulatory surgery centers?
3 General Practice surgeons and proceduralists in Illinois are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, George Sianis among them. The Illinois General Practice directory lists each one by city with credential, NPI, and center affiliations.
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