Michael M. Chu, M.D.
Gastroenterology Physician · Arcadia, CA
Michael M. Chu, M.D. is a gastroenterology physician with a practice address in Arcadia, California, and NPI 1952491805, issued on Oct 13, 2006. Check the license (California A52399, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael M. Chu
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A52399 CA
Self-reported in NPPES; status is on the state search - Practice location
- 632 W Duarte RD Ste 170, Arcadia, CA 91007
- Phone
- (626) 445-1278
- Enumerated
- Oct 13, 2006
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (626) 445-1784
- Medicaid ID
- 00A523990 CA
- Medicare enrollment
- Enrolled (PECOS I20090217000711); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 632 W Duarte RD Ste 170
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Annie Shu, M.D.Internal Medicine Physician1518058742
Verify Michael M. Chu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A52399Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average gastroenterology physician in 2024
475 Medicare Part D claims for 302 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Gavilyte-G171 claims
- Famotidine99 claims
- Omeprazole50 claims
- Peg-3350 And Electrolytes43 claims
- Sod Sulf-Potass Sulf-Mag Sulf29 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.
Industry payments in 2024: $140.56
1 payment: food and beverage; the largest payer was Abbott Laboratories. 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
- Annie Shu And Michael ChuArcadia, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael M. Chu among 2,140 gastroenterology physician records in California
Michael M. Chu, M.D. 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 48% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1982 · median 2002 among the 1,538 with a school on file
- Record last updated2021 · 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 Arcadia → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jacob Korula, M.D.Arcadia, CA 910071295732568
- Hanson Lee, M.D.Arcadia, CA 910071730181116
- Sunny Lo, D.O.Arcadia, CA 910071891053187
- Donald Portocarrero, D.O.Arcadia, CA 910071841503570
- Kenneth Shan, MDArcadia, CA 910071629605431
- George Thomas, M.D.Arcadia, CA 910071649293150
- Elias Tarakji, M.D.Arcadia, CA 910061467454835
- Donald David, MDDuarte, CA 910101588767131
Common questions
What is Michael M. Chu, M.D.'s NPI number?
Michael M. Chu, M.D.'s National Provider Identifier (NPI) is 1952491805, issued on Oct 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael M. Chu, M.D. located?
The NPPES record lists a practice address at 632 W Duarte RD Ste 170, Arcadia, CA, 91007. Phone: (626) 445-1278. Providers update this record themselves, so call before visiting.
How can I verify Michael M. Chu, M.D.'s license?
NPPES lists California license number A52399, 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 Michael M. Chu, M.D. prescribe under Medicare Part D?
In 2024, Michael M. Chu, M.D. had 475 Medicare Part D claims for 302 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
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.