Physician
Chan, Sing
Chan, Sing was paid $10.16M by Medicaid between Jan 2018 and Nov 2024, across 64 billing codes. Its largest line is 43239, Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple — 17% of everything it billed.
33Billing provider infoCHAN, SING
FLUSHING, NY 11354
FLUSHING, NY 11354
33aNPI1225053523assigned 07/13/2006
33bProvider typeGastroenterology Physician
28Total paid$10.16M
24GClaims75,326
24DCodes billed64
24AFirst – last monthJan 2018 – Nov 2024
Compared with peers
Next to other Gastroenterology Physician providers in New York
Rank by total paid#2 of 656
Median peer was paid$12K
This provider vs. median835×
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 | 13,906 | $2.11M | |
| 2019 | 15,309 | $2.17M | |
| 2020 | 14,775 | $2.17M | |
| 2021 | 13,831 | $2.14M | |
| 2022 | 5,687 | $580K | |
| 2023 | 6,483 | $586K | |
| 2024incomplete | 5,335 | $403K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 43239 | Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple | 17% | 7,593 | 7,502 | $1.71M |
| 46250 | 11% | 3,526 | 3,447 | $1.16M | |
| 99213 | Doctor's office visit, returning patient (routine)Office or other outpatient visit for the evaluation and management of an established patient, low complexity | 8.4% | 16,476 | 13,961 | $857K |
| 88312 | 6.9% | 1,043 | 1,042 | $705K | |
| 88305 | Level IV - Surgical pathology, gross and microscopic examination | 6.6% | 1,541 | 1,456 | $673K |
| 45385 | Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) | 6.0% | 2,186 | 2,178 | $613K |
| 45350 | 5.6% | 1,348 | 1,335 | $573K | |
| 88313 | 5.1% | 1,042 | 1,041 | $514K | |
| 46230 | 4.6% | 3,930 | 3,769 | $468K | |
| 99203 | Doctor's office visit, new patient (routine)Office or other outpatient visit for the evaluation and management of a new patient, low complexity | 3.4% | 4,236 | 4,225 | $342K |
| 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 | 3.1% | 3,943 | 3,807 | $317K |
| 46930 | 3.1% | 3,681 | 3,585 | $315K |
52 more codes
| 91120 | 2.9% | 908 | $293K | |
| 45380 | Colonoscopy, flexible; with biopsy, single or multiple | 2.7% | 1,390 | $272K |
| 45378 | Colonoscopy, flexible; diagnostic, including collection of specimen(s) | 1.8% | 759 | $181K |
| 45398 | 1.8% | 461 | $179K | |
| 91065 | 1.5% | 2,894 | $156K | |
| 91122 | 1.5% | 946 | $150K | |
| 46500 | 1.3% | 996 | $132K | |
| 45381 | <1% | 863 | $94K | |
| 46221 | <1% | 577 | $85K | |
| 99204 | Doctor's office visit, new patient (more involved) | <1% | 499 | $69K |
| 99212 | Office or other outpatient visit for the evaluation and management of an established patient, straightforward | <1% | 1,705 | $42K |
| 95004 | Percutaneous tests with allergenic extracts, immediate type reaction | <1% | 205 | $40K |
| 86328 | <1% | 1,564 | $38K | |
| 51784 | <1% | 654 | $26K | |
| 43251 | <1% | 67 | $19K | |
| 87635 | Infectious agent detection by nucleic acid; SARS-CoV-2 (COVID-19), amplified probe | <1% | 397 | $17K |
| 45330 | <1% | 250 | $17K | |
| 99202 | Office or other outpatient visit for the evaluation and management of a new patient, straightforward | <1% | 244 | $11K |
| 96374 | Therapeutic, prophylactic, or diagnostic injection; intravenous push, single or initial substance | <1% | 943 | $10K |
| 46200 | <1% | 50 | $10K | |
| 46255 | <1% | 26 | $9K | |
| 45331 | <1% | 106 | $8K | |
| 99396 | Periodic comprehensive preventive medicine reevaluation, established patient, 40-64 years | <1% | 67 | $7K |
| 43236 | <1% | 103 | $6K | |
| 99358 | Prolong nursin fac eval 15m | <1% | 201 | $6K |
| 99211 | Office or other outpatient visit for the evaluation and management of an established patient, minimal severity | <1% | 454 | $5K |
| 91200 | <1% | 339 | $5K | |
| 91035 | <1% | 12 | $4K | |
| 36415 | Collection of venous blood by venipuncture | <1% | 2,851 | $4K |
| 99406 | <1% | 260 | $3K | |
| J0585 | Injection, onabotulinumtoxina, 1 unit | <1% | 24 | $3K |
| 46946 | <1% | 30 | $3K | |
| 45390 | <1% | 21 | $3K | |
| J0171 | Injection, adrenalin, epinephrine, 0.1 mg | <1% | 2,471 | $2K |
| 99215 | Doctor's office visit, returning patient (complex) | <1% | 29 | $2K |
| 95907 | <1% | 27 | $2K | |
| 99441 | <1% | 30 | $1K | |
| G2211 | Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's single, serious condition or a complex condition. (add-on code, list separately in addition to office/outpatient evaluation and management visit, new or established) | <1% | 67 | $631.57 |
| 99000 | <1% | 511 | $30.27 | |
| 36416 | <1% | 25 | $11.60 | |
| G8420 | Bmi is documented within normal parameters and no follow-up plan is required | 0% | 82 | $0.00 |
| G8754 | Most recent diastolic blood pressure < 90 mmhg | 0% | 111 | $0.00 |
| 1000F | 0% | 18 | $0.00 | |
| 1036F | 0% | 32 | $0.00 | |
| G9275 | Documentation that patient is a current non-tobacco user | 0% | 64 | $0.00 |
| G8510 | Screening for depression is documented as negative, a follow-up plan is not required | 0% | 118 | $0.00 |
| 3008F | 0% | 26 | $0.00 | |
| 3074F | 0% | 14 | $0.00 | |
| G8431 | Screening for depression is documented as being positive and a follow-up plan is documented | 0% | 27 | $0.00 |
| G8752 | Most recent systolic blood pressure < 140 mmhg | 0% | 107 | $0.00 |
| C9803 | Hospital outpatient clinic visit specimen collection for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), any specimen source | 0% | 142 | $0.00 |
| 3078F | 0% | 14 | $0.00 |
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.