Ziliak, Lisa
Ziliak, Lisa was paid $782K by Medicaid between Jan 2018 and Dec 2024, across 10 billing codes. Its largest line is 92004, Ophthalmological services: medical examination and evaluation, comprehensive, new patient — 30% of everything it billed.
33Billing provider infoZILIAK, LISA
WASHINGTON, DC 20307
WASHINGTON, DC 20307
33aNPI1831243484assigned 01/22/2007
33bProvider typeOptometrist
28Total paid$782K
24GClaims25,492
24DCodes billed10
24AFirst – last monthJan 2018 – Dec 2024
Compared with peers
Next to other Optometrist providers in District of Columbia
Rank by total paid#7 of 27
Median peer was paid$98K
This provider vs. median8.0×
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 | 2,627 | $84K | |
| 2019 | 4,241 | $131K | |
| 2020 | 1,528 | $48K | |
| 2021 | 2,771 | $87K | |
| 2022 | 3,832 | $121K | |
| 2023 | 5,735 | $174K | |
| 2024incomplete | 4,758 | $137K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 92004 | Ophthalmological services: medical examination and evaluation, comprehensive, new patient | 30% | 5,181 | 4,963 | $235K |
| 92015 | Determination of refractive state | 19% | 8,602 | 8,177 | $147K |
| 92340 | Fitting of spectacles, except for aphakia; monofocal | 19% | 5,070 | 4,827 | $147K |
| 92014 | Ophthalmological services: medical examination and evaluation, comprehensive, established patient | 13% | 2,314 | 2,136 | $101K |
| S0620 | Routine ophthalmological examination including refraction; new patient | 7.1% | 1,279 | 721 | $56K |
| 92012 | Ophthalmological services: medical examination and evaluation, intermediate, established patient | 4.2% | 732 | 701 | $33K |
| V2100 | Sphere, single vision, plano to plus or minus 4.00, per lens | 3.7% | 905 | 883 | $29K |
| V2020 | Frames, purchases | 2.6% | 794 | 779 | $20K |
| S0621 | Routine ophthalmological examination including refraction; established patient | 1.3% | 240 | 145 | $10K |
| V2784 | Lens, polycarbonate or equal, any index, per lens | <1% | 375 | 375 | $5K |
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.