Internal Medicine, Gastroenterology · Monterey Park, CA
NPI
1760490627
Since 2006
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
1
Medicare group memberships
Hospitals
2
Hospital affiliations
600 N Garfield Ave, #300
Monterey Park, CA, 91754
Phone (626) 307-0828
Groups this clinician bills Medicare through
Medicare paid, 2024
$104K
1,166 services
Medicare patients, 2024
534
Average age 75
Drug cost, 2024
$2.1M
4,730 prescriptions
Company payments, 2025
$1,019
From 8 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Kwok Leung Chung was code 99213 (office e&m - established), 457 times for 359 patients. In total Kwok Leung Chung billed 1,166 services in 11 codes, and Medicare paid $104K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2015-06-10.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99213 Office E&M - Established | Office | 457 | 359 | $77.74 | $36K |
| 99442 Telephone Services | Office | 137 | 131 | $77.96 | $11K |
| 45380 Lower GI Endoscopy - Other | Facility | 136 | 136 | $149.51 | $20K |
| 43239 Upper GI Endoscopy | Facility | 120 | 120 | $69.27 | $8,313 |
| 99214 Office E&M - Established | Office | 98 | 95 | $108.14 | $11K |
| G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | Facility | 96 | 96 | $4.49 | $431 |
| 99204 Office E&M - New | Office | 92 | 92 | $142.06 | $13K |
| 45385 Colonoscopy - Lesion Removal | Facility | 24 | 24 | $206.63 | $4,959 |
By year: 2022 $140K for 1,481 services; 2023 $150K for 1,666 services; 2024 $104K for 1,166 services.
Lab tests billed to Medicare, 2022
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 82274 Immunoassay | 14 | 14 | $15.75 | $220 |
Medicare prescription drug claims, 2024
In 2024, the drug Kwok Leung Chung prescribed most often to Medicare patients was Famotidine, with 733 prescriptions and refills. In total Kwok Leung Chung wrote 4,730 Medicare prescriptions that cost $2.1M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Famotidine Generic | 733 | 1,742 | 297 | $7,839 |
| Omeprazole Generic | 714 | 1,682 | 272 | $7,560 |
| Vemlidy Tenofovir Alafenamide | 608 | 630 | 65 | $887K |
| Creon Lipase/Protease/Amylase | 278 | 398 | 76 | $474K |
| Pantoprazole Sodium Generic | 274 | 633 | 100 | $3,017 |
| Linzess Linaclotide | 245 | 372 | 78 | $192K |
| Dexlansoprazole Dr Dexlansoprazole | 241 | 440 | 54 | $71K |
| Gavilyte-G Peg3350/Sod Sulf,bicarb,cl/Kcl | 208 | 208 | 204 | $3,455 |
| Tenofovir Disoproxil Fumarate Generic | 157 | 215 | 26 | $10K |
| Hydrocortisone Generic | 120 | 126 | 39 | $1,641 |
| Dicyclomine Hcl Generic | 115 | 271 | 53 | $2,110 |
| Sod Sulf-Potass Sulf-Mag Sulf Sodium, Potassium,mag Sulfates | 86 | 86 | 86 | $5,148 |
| Peg-3350 And Electrolytes Peg3350/Sod Sulf,bicarb,cl/Kcl | 82 | 82 | 79 | $1,454 |
| Ursodiol Generic | 75 | 131 | 14 | $8,725 |
| Entecavir Generic | 66 | 84 | Under 11 | $6,124 |
Brand drugs: 1,462 claims; generic drugs: 3,268 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Kwok Leung Chung $1,019 ($1,019 in general payments such as food, travel and fees) from 8 companies. The largest payer was Gilead Sciences, Inc. with $287.
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.