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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. William Yang:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. William Yang is Excellent. Dr. Yang has been reviewed by 4 patients who have provided 1 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 4.3
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Education & Awards

Dr. Yang graduated from University of Wisconsin at Madison.


Dr. Yang has 6 hospital affiliations:

  • Albany Medical Center Hospital 
  • Memorial Medical Center 


  • French
  • Mandarin
  • Arabic

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Additional Information
Dr. William Wen-Long Yang MD is a male Ophthalmologist, has 8 years of experience and practices in Ophthalmology.
Where does Dr. William W. Yang practice?
Dr. William Yang has 1 office location.
Dr. William Yang practices Ophthalmology near Springfield, IL.
See Springfield Ophthalmologists.