Physician
Chan, Chiwai
Chan, Chiwai was paid $2.32M by Medicaid between Jan 2018 and Aug 2023, across 24 billing codes. Its largest line is 99214, doctor's office visit, returning patient (more involved) — 53% of everything it billed.
33Billing provider infoCHAN, CHIWAI
FOUNTAIN VALLEY, CA 92708
FOUNTAIN VALLEY, CA 92708
33aNPI1629051529assigned 11/23/2005
33bProvider typePain Medicine Physician
28Total paid$2.32M
24GClaims56,935
24DCodes billed24
24AFirst – last monthJan 2018 – Aug 2023
Compared with peers
Next to other Pain Medicine Physician providers in California
Rank by total paid#6 of 35
Median peer was paid$96K
This provider vs. median24×
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 | 9,571 | $393K | |
| 2019 | 15,257 | $617K | |
| 2020 | 10,945 | $436K | |
| 2021 | 9,418 | $329K | |
| 2022 | 8,934 | $374K | |
| 2023 | 2,810 | $170K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 99214 | Doctor's office visit, returning patient (more involved)Office or other outpatient visit for the evaluation and management of an established patient, moderate complexity | 53% | 22,048 | 16,653 | $1.24M |
| 99232 | Hospital visit by a doctor, follow-up daySubsequent hospital care, per day, moderate complexity | 11% | 4,708 | 968 | $246K |
| 62323 | 7.1% | 1,682 | 1,664 | $164K | |
| 99204 | Doctor's office visit, new patient (more involved)Office or other outpatient visit for the evaluation and management of a new patient, moderate complexity | 5.2% | 1,179 | 862 | $120K |
| 99223 | Prolong inpt eval add15 m | 3.6% | 779 | 733 | $84K |
| J1170 | Injection, hydromorphone, up to 4 mg | 3.3% | 388 | 353 | $77K |
| J1040 | Injection, methylprednisolone acetate, 80 mg | 3.3% | 3,962 | 3,857 | $76K |
| J7321 | Hyaluronan or derivative, hyalgan, supartz or visco-3, for intra-articular injection, per dose | 2.6% | 767 | 316 | $60K |
| 20553 | 1.8% | 1,835 | 1,802 | $43K | |
| 77002 | 1.6% | 4,260 | 1,500 | $37K | |
| 62321 | 1.5% | 398 | 395 | $35K | |
| J1030 | Injection, methylprednisolone acetate, 40 mg | 1.3% | 2,320 | 2,260 | $30K |
12 more codes
| 20610 | 1.2% | 2,010 | $27K | |
| Q9966 | Low osmolar contrast material, 200-299 mg/ml iodine concentration, per ml | 1.1% | 4,444 | $26K |
| 76942 | <1% | 1,947 | $17K | |
| 95991 | <1% | 741 | $15K | |
| 64483 | <1% | 100 | $8K | |
| 64484 | <1% | 94 | $7K | |
| 64493 | <1% | 80 | $2K | |
| 99213 | Doctor's office visit, returning patient (routine) | <1% | 178 | $771.20 |
| 64495 | <1% | 78 | $755.88 | |
| 64494 | <1% | 78 | $744.36 | |
| 77003 | <1% | 2,717 | $724.64 | |
| 62368 | <1% | 142 | $407.61 |
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.