Doctor profile · Federal record
Dr. Wei-Chung Chen, MD
Gastroenterology Physician (CMS: Gastroenterology) · Los Angeles, CA
- NPI 1699066381
- Accepts Medicare
- MIPS 82.5 / 100 · 2023
- 15 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1520 San Pablo St
Los Angeles, CA 900335310
(323) 442-5100 - Mailing address
-
Po Box 31309
Los Angeles, CA 900310309
Credentials & registration
- NPI registered
- April 2011 — 15 yrs on file
- Profile last updated
- June 19, 2017
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #A137336
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1699066381. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
849
Distinct HCPCS
10
Medicare allowed
$91,986
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99439 |
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | 177 | 14 | $51 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 115 | 86 | $139 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 108 | 14 | $67 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 105 | 60 | $125 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 78 | 78 | $135 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 64 | 64 | $104 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 61 | 60 | $86 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 53 | 53 | $180 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 43 | 43 | $258 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 34 | 30 | $99 |
In context: peer comparison
Among 52 peers in Los Angeles Gastroenterology Physician, average services per provider: 124. This provider delivers 6.8× the peer median.Open Payments
Industry payments received
All-time total
$802
Transactions
39
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 25 | $409.81 | |
| Janssen Biotech, INC. | 6 | $201.53 | |
| Merck Sharp & Dohme LLC | 2 | $46.25 | |
| Genzyme Corporation | 1 | $30.36 | |
| Ardelyx, INC. | 1 | $28.03 | |
| Lilly USA, LLC | 1 | $27.56 | |
| Celgene Corporation | 1 | $20.44 | |
| Ironwood Pharmaceuticals, INC | 1 | $20.43 | |
| Takeda Pharmaceuticals U.S.A., INC. | 1 | $17.32 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
250
Patients
88
Total drug cost
$145,038
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Famotidine | Generic | 64 | 25 | $1,228 |
| Pantoprazole Sodium | Generic | 63 | 34 | $1,279 |
| Linzess (Linaclotide) | Brand | 34 | 0 | $29,945 |
| Omeprazole | Generic | 24 | 17 | $293 |
| Ondansetron Hcl | Generic | 20 | 0 | $233 |
| Sucralfate | Generic | 18 | 12 | $2,374 |
| Humira(Cf) Pen (Adalimumab) | Brand | 14 | 0 | $102,959 |
| Dexlansoprazole Dr (Dexlansoprazole) | Brand | 13 | 0 | $6,728 |
Frequently asked questions
What is Dr. Wei-Chung Chen's medical specialty?
Dr. Wei-Chung Chen practices Gastroenterology Physician in Los Angeles, CA.
Where does Dr. Wei-Chung Chen practice?
Dr. Wei-Chung Chen practices at 1520 San Pablo St, Los Angeles, CA 900335310. Office phone: 3234425100.
What is Dr. Wei-Chung Chen's NPI?
Dr. Wei-Chung Chen's National Provider Identifier (NPI) is 1699066381, issued by NPPES.
Does Dr. Wei-Chung Chen accept Medicare assignment?
Yes. Dr. Wei-Chung Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Wei-Chung Chen commonly perform?
Top Medicare-reported procedures in 2023: Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month (HCPCS 99439); Established patient office or other outpatient visit (HCPCS 99214); Chronic care management services (HCPCS 99490). Source: CMS Medicare Physician & Other Practitioners file.