David W. Chui, MD
Gastroenterology Physician · San Jose, CA
David W. Chui, MD is a gastroenterology physician with a practice address in San Jose, California, and NPI 1942373998, issued on Nov 16, 2006. Check the license (California A046638, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David W. Chui
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A046638 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2100 Forest Ave, San Jose, CA 95128
- Phone
- (408) 297-5740
- Enumerated
- Nov 16, 2006
- Record last updated
- Aug 22, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (408) 297-4970
- Medicaid ID
- 00A466380 CA
- Medicare enrollment
- Enrolled (PECOS I20090112000368); accepts Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 1988
- Entity
- Type 1 · individual
Also registered at 2100 Forest Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alphonsus Cheung, MDAnesthesiology Physician1609822469
- David Eby, MDInternal Medicine Physician1023122959
- Mona Joshi, ODOptometrist1184146714
- Michael Martin, M.D.Internal Medicine Physician1174655633
- Thomas McGuire, M.D.Internal Medicine Physician1801925151
Verify David W. Chui in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A046638Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average gastroenterology physician in 2024
492 Medicare Part D claims for 250 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Gavilyte-G135 claims
- Omeprazole111 claims
- Famotidine105 claims
- Peg-3350 And Electrolytes46 claims
- Peg 3350-Electrolyte23 claims
- Balsalazide Disodium13 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 MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $15.62
1 payment: food and beverage; the largest payer was Olympus America 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.
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
Other gastroenterology physician records in California
- David Aarons, MDLodi, CA1619081379
- Constante Abaya, MDOxnard, CA1003918459
- Sadeea Abbasi, M.D., PH.D.Los Angeles, CA1366713513
- Basim Abdelkarim, MDUpland, CA1932217544
- Homan Abdollahzadeh, MDPalm Springs, CA1184634826
- John Abdulian, M.D.Fresno, CA1437114113
- Hussein Abidali, DORancho Cucamonga, CA1205274768
- Alaa Abousaif, MDOrange, CA1235124108
- Donald Abrahm, M.D.Newport Beach, CA1215022405
- Maria Abreu, M.D.West Hollywood, CA1598793374
Common questions
What is David W. Chui, MD's NPI number?
David W. Chui, MD's National Provider Identifier (NPI) is 1942373998, issued on Nov 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David W. Chui, MD located?
The NPPES record lists a practice address at 2100 Forest Ave, San Jose, CA, 95128. Phone: (408) 297-5740. Providers update this record themselves, so call before visiting.
How can I verify David W. Chui, MD's license?
NPPES lists California license number A046638, 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 David W. Chui, MD prescribe under Medicare Part D?
In 2024, David W. Chui, MD had 492 Medicare Part D claims for 250 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is David W. Chui, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100. 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.