Andrew Giap is a Gastroenterology physician affiliated with Kaiser Permanente Anaheim Medical Center. OpenAlex indexes 41 publications with 463 citations (h-index 9).
Overview
Scholarship
indexed output and impact (OpenAlex)Publications indexed by OpenAlex. Counts exclude supporting files.
Citations across these publications.
H-index from these publications.
Clinical & industry
trials, payments and federal fundingIndustry payments
3 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Cook Medical LLCProgram year20251 payment
- Cook Medical LLCProgram year20241 payment
- Boston Scientific CorporationProgram year20231 payment
Payment records matched to this physician's NPI in CMS Open Payments, program years 2021 onward.
Medicare prescribing footprint (2023)
The drugs this prescriber writes for Medicare patients, grouped by drug class and therapeutic area. Every percentage is a share of their total prescribing, so you can see what they prescribe most. These are proportions, not patient counts or dollar amounts. No condition is inferred: the claims record what was prescribed, never why.
Metabolism & gastrointestinal
95.7%Osmotic Laxative67%Gavilyte-C100%Part D≥182 patientsProton pump inhibitor28.7%Omeprazole82%Pantoprazole Sodium19%Part D<11 patientsCardiovascular
4.3%Bile Acid Sequestrant4.3%Cholestyramine100%Part D<11 patients
Drug classes come from the WHO ATC and U.S. National Library of Medicine (RxClass) classifications; prescribing counts come from the CMS Medicare Part D Prescribers file. Each drug is counted once, under its primary class. Medicare fee-for-service only, so no Medicare Advantage, commercial, or pediatric prescribing is included. CMS publishes this data about 17 months after the fact.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- EMR versus surgery for colon adenomas and early-stage cancers: a comparative effectiveness study
Gastrointestinal Endoscopy
2025 - Safety of uninterrupted anticoagulation in the setting of routine colonoscopy
Gastrointestinal Endoscopy
2025
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A basic profile from our physician directory: identity and practice contact from the federal NPPES registry, research from OpenAlex, trials from ClinicalTrials.gov, payments from CMS Open Payments, shown itemized where we have matched records, as a count where we only have a total. This person hasn't been through our full identity-adjudication pipeline yet. Reviewed account links and congress post links can appear separately. Absence of a section means “not yet looked,” never “none found.”