William Y. To, O.D., INC
William Y. To, O.D., INC was paid $20K by Medicaid between Mar 2022 and Nov 2023, across 4 billing codes. Its largest line is 92014, Ophthalmological services: medical examination and evaluation, comprehensive, established patient — 41% of everything it billed.
33Billing provider infoWILLIAM Y. TO, O.D., INC
SAN MATEO, CA 94403
SAN MATEO, CA 94403
33aNPI1700448925assigned 07/08/2019
33bProvider typeOptometrist
28Total paid$20K
24GClaims448
24DCodes billed4
24AFirst – last monthMar 2022 – Nov 2023
Compared with peers
Next to other Optometrist providers in California
Rank by total paid#987 of 1,899
Median peer was paid$23K
This provider vs. median0.9×
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 | |
|---|---|---|---|
| 2022 | 173 | $9K | |
| 2023 | 275 | $11K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 92014 | Ophthalmological services: medical examination and evaluation, comprehensive, established patient | 41% | 66 | 59 | $8K |
| 92015 | Determination of refractive state | 33% | 257 | 234 | $7K |
| 92250 | 16% | 84 | 79 | $3K | |
| 92340 | Fitting of spectacles, except for aphakia; monofocal | 11% | 41 | 41 | $2K |
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.
From NPPES
Who's on the registration
Authorized officialYANDELL, KATALINA (CHIEF OPERATIONS OFFICER)