Dr. William Yang, MD
2020 W Iles Ave, Springfield, IL 62704 • +1-335-555-1779
Medical Education: Accredited U.S. Medical School (Class of 2004)
What This Doctor Actually Performs: CMS Medicare Utilization & Springfield Percentiles
NPI #1790979011 • CBSA Regional • Ophthalmology
Operating out of Springfield, IL (2020 W Iles Ave), Ophthalmology clinician Dr. William Yang, MD (accredited MD/DO training, 2004) maintains a focused low-volume boutique caseload (0th Springfield percentile) (6.14th IL percentile; Z-score -0.43σ across 841 documented services) with sub-specialty concentration in 22 Active CMS HCPCS Codes.
Among 5 tracked CMS fee-schedule codes for Dr. Yang (averaging 2.2 services per beneficiary), 92014 (Comprehensive Ophthalmologic Slit-Lamp & Dilated Retinal Exam) represents 37% of tracked volume (311 encounters), paired with 92134 (219x).
For out-of-network patients contacting +1-335-555-1779, Dr. Yang's practice posts a $218.00 GPCI self-pay consult estimate ($218.00 patient-logged median, 4.80/5 composite reality score over 3 submissions).
Clinical background for Dr. Yang (MD, NPI #1790979011) includes accredited doctoral training (2004, 22 yrs in practice) and dedicated on-site consultations at 2020 W Iles Ave.
Compared against Springfield, IL Ophthalmology peers
841 annual services across 389 beneficiaries
Standard deviations from IL Ophthalmology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 92014 | Comprehensive Ophthalmologic Slit-Lamp & Dilated Retinal Exam | 311 | 12th | $303 – $415 |
| 92134 | Scanning Computerized Ophthalmic Retinal OCT Imaging | 219 | 12th | $167 – $229 |
| 92083 | Extended Threshold Visual Field Glaucoma Perimetry | 143 | 12th | $200 – $275 |
| 92004 | New Patient Complete Medical Eye & IOP Evaluation | 101 | 12th | $365 – $500 |
| 66984 | Extracapsular Cataract Removal w/ Intraocular Lens Implant | 67 | 12th | $1336 – $1830 |
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Dr. William Yang, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Yang National Provider Identifier | NPI #1790979011 (MD) | CMS NPPES Registry (62704) |
| Dr. Yang Springfield CMS Volume Rank | 0.00th Pct (841 CMS svcs; Z -0.430σ) | CMS Medicare Part B (IL Ophthalmology) |
| Fair Cash-Pay New-Patient Benchmark | $218.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Springfield, IL) |
| Waiting-Room Wait Time & Cash Friendliness | $218.00 avg paid • 13 min lobby wait | 3 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.94/5 Listening • 4.76/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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