Dr. Susan Kit-Sum Chu, MD

  • San Diego, CA
  • Gastroenterologist
NPI1033127162PAC ID7315907425
Medicare services, 2024
653
Medicare patients, 2024
101
Part D claims, 2024
398
Publications
1
MIPS score, 2024
89
Practice address
5651 Copley Dr, San Diego, CA 92111
Practice phone
Call (858) 262-6666
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Sharp Rees-Stealy Medical Group, Inc

San Diego, California

See all 4 affiliations

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Dr. Susan Kit-Sum Chu is a gastroenterologist in San Diego, California

Dr. Chu practices at Sharp Rees-Stealy Medical Group, Inc in San Diego, California.

Dr. Chu's NPI, 1033127162, was assigned on August 4, 2006. Dr. Chu graduated from Medical College Of Wisconsin in 1998. Dr. Chu holds California license A71982.

NPI and contact details
Medicare PAC ID
7315907425
NPI enumeration date
August 4, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(858) 262-6666
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
54
Medical school graduation
1998

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Susan Kit-Sum Chu practices at Sharp Rees-Stealy Medical Group, Inc in San Diego, California

Dr. Chu's primary practice is Sharp Rees-Stealy Medical Group, Inc, at 5651 Copley Dr, San Diego, CA 92111 in San Diego County. The practice phone is (858) 262-6666.

  • Sharp Rees-Stealy Medical Group, Inc
    5651 Copley Dr, San Diego, CA 92111 · San Diego CountyPhone(858) 262-6666

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Susan Kit-Sum Chu is affiliated with 3 sites of care and 1 medical group

Dr. Chu's primary practice is Sharp Rees-Stealy Medical Group, Inc in San Diego, California. Dr. Chu is also affiliated with Sharp Memorial Hospital. The medical group on file is Sharp Rees-Stealy Medical Group. Dmand AI also links Dr. Chu to 1 more group practice or clinic, named with a free account.

See all 4 affiliations for Dr. Chu

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Susan Kit-Sum Chu's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chu practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Sharp Rees-Stealy Medical Group, IncAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Susan Kit-Sum Chu is one of 1,977 gastroenterologists in California

Gastroenterology is Dr. Chu's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Chu is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Chu is licensed in California.

Specialties and state licenses

  • Gastroenterology, CaliforniaPrimaryLicense A71982 · 2000 to 2026 · taxonomy 207RG0100X

Clinical focus

Dmand AI lists acid reflux, chronic inflammatory bowel disease (IBD), cirrhosis of the liver, fatty liver, gastroduodenitis and intestinal diverticulosis among the conditions Dr. Chu treats.

Gastroenterologists near Dr. Chu

Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Susan Kit-Sum Chu billed Medicare for 653 services in 2024

CMS data shows 653 Medicare services from Dr. Chu across 7 procedure codes in 2024, for 101 Medicare patients. Medicare paid $28,249 for them. Every service was in an office.

Medicare services, 2024653
Medicare patients101
Paid by Medicare$28,249
Procedure codes7

Dr. Chu's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 6112024: 42331%
Tests and treatments
2023: 1522024: 9140%
Other services
2023: 832024: 6423%
Surgery
2023: 802024: 6025%
Office and hospital visits
2023: 712024: 1579%

Dr. Chu compared with the California median for gastroenterologists, 2024

  • Dr. Chu
  • California median
Medicare services
653vs 58611% above
Medicare patients
101vs 30267% below
Part D claims
287vs 38024% below

Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.

Dr. Chu's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Chu

Need commercial claims for Dr. Chu?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chu and other gastroenterologists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Susan Kit-Sum Chu treated 101 Medicare patients in 2024, average age 73

CMS counts 101 Medicare patients who saw Dr. Chu in 2024. The largest group is 65 to 74, with 56 patients. 64% of them have high cholesterol, and 59% have high blood pressure. Their average risk score is 1.15, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Chu's median patient age at 63, with 60% women.

Medicare patients, 2024101
Average age73
Average risk score1.15

Dr. Chu's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Chu's Medicare patients by sex, 2024

  • Women5554%
  • Men4646%

Chronic conditions among Dr. Chu's Medicare patients, 2024

  1. High cholesterol64%
  2. High blood pressure59%
  3. Arthritis42%
  4. Diabetes29%
  5. Chronic kidney disease24%
  6. Anxiety22%
  7. Depression20%
  8. Ischemic heart disease20%

Share of Medicare patients with each condition. A patient can have several.

Dr. Chu's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 63

Patient panel by sex, all payers

  • Women60%
  • Men39%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Susan Kit-Sum Chu wrote 398 Medicare Part D claims in 2024

In 2024, Dr. Chu wrote 398 Medicare Part D claims for 111 patients. 80% of them were for generic drugs. CMS names the drug for 287 of them, across 13 drugs with 11 or more claims each, at $74,177 in total drug cost. In 2023, CMS named 344 claims across 16 drugs.

Part D claims, 2024398
Drugs named by CMS13
Total drug cost$74,177
Part D patients111

Dr. Chu's Part D claims by kind of drug, 2024

  • Generic319 claims80%
  • Brand-name79 claims20%

Dr. Chu's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3442024: 28717%

Drugs named by CMS: 13 in 2024, 16 in 2023.

See all prescribing by Dr. Chu

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Susan Kit-Sum Chu scored 89 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Chu for performance year 2024, reported as part of a group. Dr. Chu accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chu as offering telehealth. CMS counts 64 procedures of colonoscopy by Dr. Chu, more than 69% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Chu's MIPS scores, performance year 2024

  • 89of 100Final score
  • 81of 100Quality
  • 99of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 82of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Chu ranks in Medicare procedure volume

Colonoscopy
69th percentile64 procedures
Upper gastrointestinal (GI) endoscopy for acid reflux
55th percentile30 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

For MedTech and pharma teams

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Dr. Susan Kit-Sum Chu has 1 publication on record

Dmand AI links 1 paper to Dr. Chu. Dr. Chu's most frequent co-author is Felix W. Leung, MD.

Papers1

Dr. Chu's most frequent co-authors

  • Felix W. Leung, MD1 shared paper

Recent publications by Dr. Chu

See all 1 publications and co-authors

See who Dr. Chu researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chu works with, so you can find a warm path to the right gastroenterologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Susan Kit-Sum Chu received $1,625 in industry payments from 2016 to 2024

CMS Open Payments shows 18 general payments to Dr. Chu from 8 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $453.

General payments to Dr. Chu by program year, 2016 to 2024

Companies that paid Dr. Chu the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Chu

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Susan Kit-Sum Chu graduated from Medical College Of Wisconsin

Dr. Chu graduated from Medical College Of Wisconsin in 1998.

  1. Medical schoolMedical College Of Wisconsin
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Susan Kit-Sum Chu accepts plans from 6 insurance carriers

Dr. Chu is in network with 6 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 4. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare

Plan types Dr. Chu accepts, by number of carriers

  1. HMO4
  2. POS4
  3. Medicare3
  4. EPO2
  5. PPO2
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Susan Kit-Sum Chu's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Susan Kit-Sum Chu

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Susan Kit-Sum Chu's NPI number?

Dr. Susan Kit-Sum Chu's NPI number is 1033127162. It was assigned on August 4, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Susan Kit-Sum Chu?

Dr. Susan Kit-Sum Chu is a gastroenterologist in San Diego, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Susan Kit-Sum Chu practice?

Dr. Chu practices at 5651 Copley Dr, San Diego, CA 92111. Dr. Chu's primary practice is Sharp Rees-Stealy Medical Group, Inc in San Diego, California. Dmand AI also links Dr. Chu to 1 group practice or clinic.

What is Dr. Susan Kit-Sum Chu's office phone number?

The practice phone on file for Dr. Chu is (858) 262-6666.

What is Dr. Susan Kit-Sum Chu's medical license number?

Dr. Chu holds California license A71982.

Which hospitals is Dr. Susan Kit-Sum Chu affiliated with?

Dr. Chu is affiliated with Sharp Memorial Hospital.

What medical group is Dr. Susan Kit-Sum Chu part of?

Dr. Chu is linked to Sharp Rees-Stealy Medical Group.

Does Dr. Susan Kit-Sum Chu accept Medicare?

Yes. CMS data shows Dr. Chu billed Medicare for 653 services in 2024, and Dr. Chu accepts Medicare assignment.

Does Dr. Susan Kit-Sum Chu offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Chu as offering telehealth services.

What is Dr. Susan Kit-Sum Chu's MIPS score?

Dr. Chu's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Susan Kit-Sum Chu see?

CMS counts 101 Medicare patients who saw Dr. Chu in 2024, with an average age of 73.

Is Dr. Susan Kit-Sum Chu board certified?

Yes. Dr. Chu is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Dr. Susan Kit-Sum Chu bill to Medicare?

In 2024, Dr. Chu's most billed Medicare services were injected or infused drug (J2250), special service (99153) and medicare service (G0500).

Where did Dr. Susan Kit-Sum Chu go to medical school?

Dr. Chu graduated from Medical College Of Wisconsin in 1998.

What drugs does Dr. Susan Kit-Sum Chu prescribe most?

In 2024 Medicare Part D data, Dr. Chu's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole and Vemlidy.

Has Dr. Susan Kit-Sum Chu received payments from drug or device companies?

CMS Open Payments shows $1,625 in general payments to Dr. Chu from 8 companies from 2016 to 2024. The largest total came from Abbvie Inc.

How long has Dr. Susan Kit-Sum Chu been practicing?

Dr. Chu graduated from medical school in 1998, 28 years ago.

Does Dr. Susan Kit-Sum Chu do research?

Dmand AI links 1 publication to Dr. Chu.

Who does Dr. Susan Kit-Sum Chu publish with?

Dr. Chu's most frequent co-authors are Felix W. Leung, MD (1 shared paper).

What insurance does Dr. Susan Kit-Sum Chu accept?

Dr. Chu is in network with 6 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 4. Check the plan with the practice before a visit.

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