Internal Medicine, Gastroenterology · Oakbrook Terrace, IL
NPI
1346241585
Since 2005
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
2
Medicare group memberships
Hospitals
2
Hospital affiliations
1s280 Summit Ave, Court A
Oakbrook Terrace, IL, 60181
Phone (630) 889-9889
Groups this clinician bills Medicare through
Medicare paid, 2024
$136K
1,222 services
Medicare patients, 2024
596
Average age 71
Drug cost, 2024
$741K
3,443 prescriptions
Company payments, 2025
$31.79
From 3 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by David C Chua was code 99214 (office e&m - established), 735 times for 430 patients. In total David C Chua billed 1,222 services in 16 codes, and Medicare paid $136K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2011-10-24.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 735 | 430 | $92.73 | $68K |
| 99204 Office E&M - New | Office | 166 | 166 | $115.76 | $19K |
| 99232 Hospital E&M - Subsequent | Facility | 53 | 33 | $62.23 | $3,298 |
| 91122 Test - Miscellaneous | Office | 44 | 44 | $219.53 | $9,659 |
| 43239 Upper GI Endoscopy | Facility | 44 | 34 | $104.07 | $4,579 |
| 91120 Test - Miscellaneous | Office | 44 | 44 | $390.24 | $17K |
| 45380 Lower GI Endoscopy - Other | Facility | 43 | 41 | $110.93 | $4,770 |
| 99213 Office E&M - Established | Office | 36 | 36 | $71.44 | $2,572 |
| 45385 Colonoscopy - Lesion Removal | Facility | 16 | 16 | $187.25 | $2,996 |
| 99222 Hospital E&M - Initial | Facility | 14 | 14 | $108.35 | $1,517 |
By year: 2022 $146K for 1,584 services; 2023 $113K for 1,204 services; 2024 $136K for 1,222 services.
Medicare prescription drug claims, 2024
In 2024, the drug David C Chua prescribed most often to Medicare patients was Metoclopramide Hcl, with 985 prescriptions and refills. In total David C Chua wrote 3,443 Medicare prescriptions that cost $741K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Metoclopramide Hcl Generic | 985 | 1,325 | 291 | $3,443 |
| Gavilyte-G Peg3350/Sod Sulf,bicarb,cl/Kcl | 450 | 450 | 425 | $7,185 |
| Omeprazole Generic | 395 | 845 | 156 | $4,467 |
| Lansoprazole Generic | 298 | 645 | 111 | $6,605 |
| Pantoprazole Sodium Generic | 286 | 695 | 123 | $3,384 |
| Linzess Linaclotide | 176 | 326 | 66 | $177K |
| Dexlansoprazole Dr Dexlansoprazole | 109 | 229 | 32 | $40K |
| Peg-3350 And Electrolytes Peg3350/Sod Sulf,bicarb,cl/Kcl | 97 | 97 | 83 | $1,694 |
| Gavilyte-C Peg3350/Sod Sulf,bicarb,cl/Kcl | 88 | 88 | 86 | $1,409 |
| Peg 3350-Electrolyte Sodium Chloride/Nahco3/Kcl/Peg | 61 | 61 | 58 | $1,280 |
| Lactulose Generic | 43 | 56 | Under 11 | $1,622 |
| Xifaxan Rifaximin | 37 | 41 | Under 11 | $129K |
| Clenpiq Sod Picosulf/Mag Ox/Citric Ac | 25 | 25 | 25 | $4,264 |
| Humira Pen Adalimumab | 24 | 24 | Under 11 | $161K |
| Metronidazole Generic | 20 | 20 | 17 | $228 |
Brand drugs: 514 claims; generic drugs: 2,929 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid David C Chua $31.79 ($31.79 in general payments such as food, travel and fees) from 3 companies. The largest payer was Celltrion USA Inc. with $16.91.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.