Chang, William
Chang, William was paid $6K by Medicaid between Nov 2018 and Dec 2023, across 3 billing codes. Its largest line is 92015, Determination of refractive state — 57% of everything it billed.
33Billing provider infoCHANG, WILLIAM
SAN GABRIEL, CA 91776
SAN GABRIEL, CA 91776
33aNPI1629206834assigned 06/25/2009
33bProvider typeOptometrist
28Total paid$6K
24GClaims527
24DCodes billed3
24AFirst – last monthNov 2018 – Dec 2023
Compared with peers
Next to other Optometrist providers in California
Rank by total paid#1,258 of 1,899
Median peer was paid$23K
This provider vs. median0.3×
Peers share this provider's primary NPPES type and state. Size alone says nothing about billing quality: a big agency or a hospital system is expected to sit far above the median.
Box 24A · Dates of service
Paid by month
Paid that monthNov–Dec 2024: claims still arriving when the file was cut, so these months run low for every provider
By year, as a table
| Year | Claims | Paid | |
|---|---|---|---|
| 2018 | 29 | $576.86 | |
| 2019 | 13 | $103.09 | |
| 2020 | 45 | $356.85 | |
| 2021 | 97 | $1K | |
| 2022 | 162 | $2K | |
| 2023 | 181 | $2K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 92015 | Determination of refractive state | 57% | 465 | 465 | $4K |
| 92004 | Ophthalmological services: medical examination and evaluation, comprehensive, new patient | 35% | 49 | 49 | $2K |
| 92014 | Ophthalmological services: medical examination and evaluation, comprehensive, established patient | 7.7% | 13 | 13 | $494.65 |
Claims and beneficiary counts add up across code × month rows, so one patient seen every month counts many times. Rows with fewer than 12 claims are suppressed by HHS, so small lines can be missing.