Physician
Bui, Christopher
Bui, Christopher was paid $577K by Medicaid between Jan 2018 and Nov 2024, across 14 billing codes. Its largest line is 43239, Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple — 29% of everything it billed.
33Billing provider infoBUI, CHRISTOPHER
SANTA ANA, CA 92703
SANTA ANA, CA 92703
33aNPI1811061468assigned 11/17/2006
33bProvider typeGastroenterology Physician
28Total paid$577K
24GClaims17,481
24DCodes billed14
24AFirst – last monthJan 2018 – Nov 2024
Compared with peers
Next to other Gastroenterology Physician providers in California
Rank by total paid#76 of 363
Median peer was paid$55K
This provider vs. median11×
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 | 3,823 | $86K | |
| 2019 | 2,999 | $99K | |
| 2020 | 2,521 | $73K | |
| 2021 | 2,450 | $87K | |
| 2022 | 3,458 | $114K | |
| 2023 | 1,575 | $72K | |
| 2024incomplete | 655 | $45K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 43239 | Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple | 29% | 1,360 | 1,343 | $167K |
| 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 | 29% | 8,551 | 8,057 | $166K |
| 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 | 16% | 1,858 | 1,695 | $90K |
| 45378 | Colonoscopy, flexible; diagnostic, including collection of specimen(s) | 9.9% | 161 | 160 | $57K |
| 45380 | Colonoscopy, flexible; with biopsy, single or multiple | 4.6% | 194 | 190 | $27K |
| 99232 | Hospital visit by a doctor, follow-up daySubsequent hospital care, per day, moderate complexity | 3.6% | 772 | 295 | $21K |
| 99213 | Doctor's office visit, returning patient (routine)Office or other outpatient visit for the evaluation and management of an established patient, low complexity | 3.2% | 1,836 | 1,577 | $18K |
| 99223 | Prolong inpt eval add15 m | 2.4% | 260 | 250 | $14K |
| 76700 | Ultrasound, abdominal, real time with image documentation; complete | 1.5% | 990 | 990 | $9K |
| 45385 | Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) | <1% | 25 | 25 | $4K |
| 88305 | Level IV - Surgical pathology, gross and microscopic examination | <1% | 981 | 887 | $2K |
| 88312 | <1% | 369 | 356 | $2K |
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.