Doctor profile · Federal record
Dr. David Chung, MD
Gastroenterology Physician (CMS: Gastroenterology) · Torrance, CA
- NPI 1851362974
- Accepts Medicare
- 28 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
23451 Madison St Ste 290
Torrance, CA 905054737
(310) 375-1246
fax (310) 375-0981
Credentials & registration
- NPI registered
- January 2006 — 20 yrs on file
- Profile last updated
- September 26, 2024
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #A74862
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1851362974. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
641
Distinct HCPCS
10
Medicare allowed
$76,267
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
88305 |
Pathology examination of tissue using a microscope, intermediate complexity | 163 | 46 | $41 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 136 | 86 | $126 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 66 | 65 | $90 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 56 | 26 | $125 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 55 | 55 | $108 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 50 | 50 | $212 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 44 | 44 | $165 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 32 | 30 | $182 | |
43242 |
Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 21 | 20 | $242 | |
45382 |
Control of bleeding of upper large bowel using a flexible endoscope | 18 | 18 | $270 |
In context: peer comparison
Among 19 peers in Torrance Gastroenterology Physician, average services per provider: 105. This provider delivers 6.1× the peer median.Open Payments
Industry payments received
All-time total
$719
Transactions
33
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 12 | $226.14 | |
| Gilead Sciences, INC. | 7 | $159.72 | |
| Pfizer INC. | 5 | $106.80 | |
| Janssen Biotech, INC. | 2 | $71.54 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 3 | $48.78 | |
| 3-D Matrix, INC. | 1 | $47.13 | |
| Genzyme Corporation | 1 | $24.10 | |
| Ipsen Biopharmaceuticals, INC | 1 | $20.00 | |
| Phathom Pharmaceuticals, INC. | 1 | $15.01 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
729
Patients
355
Total drug cost
$68,955
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 220 | 105 | $2,545 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 92 | 89 | $1,505 |
| Famotidine | Generic | 90 | 33 | $1,421 |
| Dicyclomine Hcl | Generic | 51 | 24 | $757 |
| Pantoprazole Sodium | Generic | 46 | 19 | $538 |
| Linzess (Linaclotide) | Brand | 41 | 17 | $44,287 |
| Ondansetron Hcl | Generic | 33 | 0 | $397 |
| Ursodiol | Generic | 32 | 0 | $4,816 |
| Levofloxacin | Generic | 25 | 25 | $60 |
| Lactulose | Generic | 19 | 0 | $172 |
Frequently asked questions
What is Dr. David Chung's medical specialty?
Dr. David Chung practices Gastroenterology Physician in Torrance, CA.
Where does Dr. David Chung practice?
Dr. David Chung practices at 23451 Madison St Ste 290, Torrance, CA 905054737. Office phone: 3103751246.
What is Dr. David Chung's NPI?
Dr. David Chung's National Provider Identifier (NPI) is 1851362974, issued by NPPES.
Does Dr. David Chung accept Medicare assignment?
Yes. Dr. David Chung accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Chung commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Established patient office or other outpatient visit (HCPCS 99214); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.