John YangMD
Ophthalmology·Chicago, IL
John Yang, MD is an Ophthalmology provider in Chicago, IL affiliated with 2 ambulatory surgery centers in IL, as of July 2026.
- NPI1942315312
- Registered2006
- Centers2
- StateIL
- Class of1996
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Ambulatory surgery centers
Centers whose service lines match this provider’s. Affiliations change; verify independently.
Education
Education on record as of August 2026.
John Yang at a glance
- Provider
- John Yang
- Credential
- MD
- Specialty
- Ophthalmology
- Procedures
- Ophthalmology CPT codes
- Location
- Chicago, IL
- Medical school
- Northwestern University Feinberg Medical School
- Graduated
- 1996
- NPI registered
- 2006
- NPI
- 1942315312
- 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 John Yang practice?
John Yang, MD is based in Chicago, IL and is affiliated with 2 ambulatory surgery centers: River North Same Day Surgery LLC in Chicago, IL and Surgery Center At 900 N Michigan Ave LLC in Chicago, IL. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is John Yang's NPI number?
John Yang's National Provider Identifier (NPI) is 1942315312, registered in 2006. Specialty on record: Ophthalmology; credential MD.
Where did John Yang go to medical school?
John Yang, MD attended Northwestern University Feinberg Medical School, graduating in 1996.
How many Ophthalmology providers in Illinois work at ambulatory surgery centers?
186 Ophthalmology surgeons and proceduralists in Illinois are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, John Yang among them. The Illinois Ophthalmology directory lists each one by city with credential, NPI, and center affiliations.
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