Wei-Chung Chen, MD
Gastroenterology Physician · Los Angeles, CA
Wei-Chung Chen, MD is a gastroenterology physician with a practice address in Los Angeles, California, and NPI 1699066381, issued on Apr 28, 2011. Check the license (California A137336, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Wei-Chung Chen
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A137336 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1520 San Pablo St, Los Angeles, CA 90033
- Phone
- (323) 442-5100
- Enumerated
- Apr 28, 2011
- Record last updated
- Jun 19, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170522002974); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 1520 San Pablo St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Frank Acosta, PHDPsychologist1750313490
- Gbemisola Adenuga, M.D.Nephrology Physician1952464661
- Aimee Aguillon, OTR/L, CHTOccupational Therapist1972677318
- Haig Aharonian, M.D.Internal Medicine Physician1205107653
- Jamshid Ahmadi, M.D.Neuroradiology Physician1942252028
- Mohammad Akmal, M.D.Nephrology Physician1356378087
Verify Wei-Chung Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A137336Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average gastroenterology physician in 2024
352 Medicare Part D claims for 146 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium87 claims
- Famotidine47 claims
- Omeprazole27 claims
- Humira(Cf) Pen13 claims
- Linzess12 claims
- Cholestyramine11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 84 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $801.73
39 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Genesis Healthcare Partners PCTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Wei-Chung Chen among 2,140 gastroenterology physician records in California
Wei-Chung Chen, MD is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 74% of them.
- NPI issued2011 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2002 among the 1,538 with a school on file
- Record last updated2017 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in Los Angeles → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Ethelred Carter, M.D.Los Angeles, CA 900331336247964
- Laurie Deleve, M.D.Los Angeles, CA 900331407882947
- Andrew Ippoliti, M.D.Los Angeles, CA 900331881621308
- Rome Jutabha, M.D.Los Angeles, CA 900331790785434
- John Kim, M.D.Los Angeles, CA 900331467676460
- Michael Kline, M.D.Los Angeles, CA 900331720017338
- Karen Lindsay, M.D.Los Angeles, CA 900331295765857
- Shelly Lu, M.D.Los Angeles, CA 900331386673606
Common questions
What is Wei-Chung Chen, MD's NPI number?
Wei-Chung Chen, MD's National Provider Identifier (NPI) is 1699066381, issued on Apr 28, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Wei-Chung Chen, MD located?
The NPPES record lists a practice address at 1520 San Pablo St, Los Angeles, CA, 90033. Phone: (323) 442-5100. Providers update this record themselves, so call before visiting.
How can I verify Wei-Chung Chen, MD's license?
NPPES lists California license number A137336, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Wei-Chung Chen, MD prescribe under Medicare Part D?
In 2024, Wei-Chung Chen, MD had 352 Medicare Part D claims for 146 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Wei-Chung Chen, MD's MIPS final score?
The 2023 MIPS final score is 84 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.