Medicare utilization — DAVID CHANG YI (M.D.)
Calendar year 2023 · data refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Allowed | Payment |
|---|---|---|---|---|---|
| 87804 | Detection test by immunoassay with direct visual observation for influenza virus | 60 | 30 | $0 | $973 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 58 | 53 | $0 | $6,003 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 50 | 49 | $0 | $3,053 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 44 | 44 | $0 | $3,521 |
| 87426 | Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus | 37 | 37 | $0 | $1,281 |
Service volume and Medicare payment amounts do not indicate quality of care, patient outcomes, or fraud. Data reflects Medicare fee-for-service only.
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·