Susan Kit-Sum Chu, M.D.
Gastroenterology Physician · San Diego, CA
Susan Kit-Sum Chu, M.D. is a gastroenterology physician with a practice address in San Diego, California, and NPI 1033127162, issued on Aug 4, 2006. Check the license (California A71982, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Susan Kit-Sum Chu
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A71982 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2929 Health Center Dr, San Diego, CA 92123
- Phone
- (858) 939-6531
- Enumerated
- Aug 4, 2006
- Record last updated
- Jun 17, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (858) 874-2351
- Medicaid ID
- 00A719820 CA
- Medicare enrollment
- Enrolled (PECOS I20041013000894); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 1998
- 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 2929 Health Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Susan Kit-Sum Chu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A71982Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average gastroenterology physician in 2024
398 Medicare Part D claims for 111 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Pantoprazole Sodium53 claims
- Omeprazole48 claims
- Vemlidy24 claims
- Balsalazide Disodium19 claims
- Tenofovir Disoproxil Fumarate19 claims
- Mercaptopurine18 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): 73.6 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: $140.87
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.
Bills Medicare through one group practice
- Sharp Rees-Stealy Medical Group IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Susan Kit-Sum Chu among 2,140 gastroenterology physician records in California
Susan Kit-Sum 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
- Graduated1998 · median 2002 among the 1,538 with a school on file
- Record last updated2013 · 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 San Diego → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Michael Bennett, MDSan Diego, CA 921231700895927
- Sergio Flores, MDSan Diego, CA 921231588674022
- R Johnson, M.D.San Diego, CA 921231548272446
- Darren Keller, M.D.San Diego, CA 921231013988922
- Hyun Kim, MDSan Diego, CA 921231013023365
- Daniel Lee, M.D.San Diego, CA 921231063522613
- John Person, M.D.San Diego, CA 921231285647297
- Douglas Politoske, MDSan Diego, CA 921231528077740
Common questions
What is Susan Kit-Sum Chu, M.D.'s NPI number?
Susan Kit-Sum Chu, M.D.'s National Provider Identifier (NPI) is 1033127162, issued on Aug 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Susan Kit-Sum Chu, M.D. located?
The NPPES record lists a practice address at 2929 Health Center Dr, San Diego, CA, 92123. Phone: (858) 939-6531. Providers update this record themselves, so call before visiting.
How can I verify Susan Kit-Sum Chu, M.D.'s license?
NPPES lists California license number A71982, 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 Susan Kit-Sum Chu, M.D. prescribe under Medicare Part D?
In 2024, Susan Kit-Sum Chu, M.D. had 398 Medicare Part D claims for 111 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Susan Kit-Sum Chu, M.D.'s MIPS final score?
The 2023 MIPS final score is 73.6 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.