Physician
Wun-Ling Chang, M.D., INC.
Wun-Ling Chang, M.D., INC. was paid $6K by Medicaid between Jul 2020 and Feb 2022, across 1 billing code. Its largest line is 99233, hospital visit by a doctor, follow-up day (complex) — 100% of everything it billed.
33Billing provider infoWUN-LING CHANG, M.D., INC.
LA JOLLA, CA 92037
LA JOLLA, CA 92037
33aNPI1447267141assigned 08/02/2006
33bProvider typeInfectious Disease Physician
28Total paid$6K
24GClaims175
24DCodes billed1
24AFirst – last monthJul 2020 – Feb 2022
Compared with peers
Next to other Infectious Disease Physician providers in California
Rank by total paid#167 of 222
Median peer was paid$61K
This provider vs. median0.1×
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 | |
|---|---|---|---|
| 2020 | 104 | $4K | |
| 2022 | 71 | $2K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 99233 | Hospital visit by a doctor, follow-up day (complex)Prolong inpt eval add15 m | 100% | 175 | 55 | $6K |
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, WUN-LING (PRESIDENT)