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Edit this profileWhere to find William W. Yang, MD
- Springfield location main office
2020 W Iles Ave, Springfield, IL 62704 - Walla Walla location
299 W Tietan St, Walla Walla, WA 99362
About Dr. Yang
Based in Springfield, IL, William W. Yang, MD is listed in the NPI registry under ophthalmology. William graduated from University of Wisconsin School of Medicine in 2004. Medicare claims data shows William provided 788 services to 605 patients. The services billed most often include established patient complete exam of visual system, measurement of corneal curvature and depth of eye, and established patient problem focused exam of visual system. NPI 1790979011 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (217) 698-3030
- Email not available
Practice Locations
2020 W ILES AVE
Springfield, IL 62704
299 W Tietan St
Walla Walla, WA 99362
Conditions Commonly Evaluated or Treated
Within Ophthalmology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Cornea and external eye
Eyelid and tear drainage
Refractive and focusing
- Astigmatism
- Eye misalignment (strabismus)
- Farsightedness
- Lazy eye (amblyopia)
- Nearsightedness
- Presbyopia
Retina and vitreous
Eye injuries
Inflammation, neurologic, and orbit
Retina & vitreous
Procedures & services
Most searched procedures
Examination and imaging
Cataract and lens
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Eyelid, tear duct, and muscle
Glaucoma
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
Procedures Most Often Billed to Medicare
788 services · 605 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
113 | As often as other peers in Ophthalmology |
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
34 | As often as other peers in Ophthalmology |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
23 | Less often than most peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
205 | As often as other peers in Ophthalmology |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
172 | As often as other peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
151 | As often as other peers in Ophthalmology |
| New patient complete exam of visual system | Treatment | 92004 |
79 | More often than most peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
11 | Less often than most peers in Ophthalmology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other eye doctors at this location 7
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 30 related providers in 4 groups
Other eye doctors in Springfield 6
Same specialty, same city.
Trained at University of Wisconsin School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2004 at University of Wisconsin School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of cataract with insertion of prosthetic lens 8
Providers in IL who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Yang?
Dr. Yang is an eye doctor in Springfield, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
What is Dr. Yang's address?
Dr. Yang is listed at 2020 W Iles Ave, Springfield, IL 62704. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Yang?
The number on file is (217) 698-3030. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Yang?
Dr. Yang's National Provider Identifier is 1790979011. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Yang train?
Dr. Yang attended University of Wisconsin School of Medicine, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Yang have?
Dr. Yang has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Yang perform?
According to Medicare billing data, Dr. Yang performs procedures including removal of cataract with insertion of prosthetic lens and removal of recurring cataract in lens capsule using a laser; provides treatments such as established patient complete exam of visual system and measurement of corneal curvature and depth of eye. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Yang's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Yang. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.