DR. Michael S. Chang O.D. INC.
DR. Michael S. Chang O.D. INC. was paid $347K by Medicaid between Jan 2018 and Nov 2024, across 7 billing codes. Its largest line is 92004, Ophthalmological services: medical examination and evaluation, comprehensive, new patient — 36% of everything it billed.
33Billing provider infoDR. MICHAEL S. CHANG O.D. INC.
ARTESIA, CA 90701
ARTESIA, CA 90701
33aNPI1952573982assigned 03/31/2008
33bProvider typeOptometrist
28Total paid$347K
24GClaims24,270
24DCodes billed7
24AFirst – last monthJan 2018 – Nov 2024
Compared with peers
Next to other Optometrist providers in California
Rank by total paid#196 of 1,899
Median peer was paid$23K
This provider vs. median15×
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 | 1,813 | $22K | |
| 2019 | 2,510 | $29K | |
| 2020 | 3,701 | $64K | |
| 2021 | 4,509 | $87K | |
| 2022 | 3,638 | $71K | |
| 2023 | 4,061 | $54K | |
| 2024incomplete | 4,038 | $19K |
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 | 36% | 4,996 | 4,991 | $125K |
| V2020 | Frames, purchases | 19% | 4,712 | 4,706 | $67K |
| 92340 | Fitting of spectacles, except for aphakia; monofocal | 18% | 4,271 | 4,263 | $61K |
| 92014 | Ophthalmological services: medical examination and evaluation, comprehensive, established patient | 14% | 1,904 | 1,900 | $50K |
| 92015 | Determination of refractive state | 11% | 8,217 | 8,206 | $40K |
| 92341 | 1.2% | 155 | 155 | $4K | |
| 99213 | Doctor's office visit, returning patient (routine)Office or other outpatient visit for the evaluation and management of an established patient, low complexity | <1% | 15 | 12 | $118.80 |
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 officialCHANG, MICHAEL (PRESIDENT/OPTOMETRIST)
| Provider | Location | Paid |
|---|---|---|
| Michael Chang Dental Corp | Rialto, CA | $3.94M |
| Michael Chang DDS PC | Gaithersburg, MD | $70K |
| Palisade Health Associates, P a | New Milford, NJ | $4K |
| Michael Chang Ontario Dental Corp | Ontario, CA | $3K |
| Michael Y. Chang, D.O., P.A. | The Woodlands, TX | $0.00 |
Matched on the authorized-official name exactly as entered in NPPES. A common name can match unrelated people.