Ronald Hsu is a Gastroenterology physician. OpenAlex indexes 38 publications with 963 citations (h-index 12).
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Clinical & industry
trials, payments and federal fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
568 N Sunrise Ave Ste 330
Roseville, CA 956613097
Telephone
916-773-6200Provider last certified this registry record 30 Mar 2026.
Industry payments
28 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- ABBVIE INC.Program year202550 payments$25,326openpaymentsdata.cms.gov ↗
- Aimmune Therapeutics, Inc.Program year20254 payments
- Ardelyx, Inc.Program year20253 payments
Payment records matched to this physician's NPI in CMS Open Payments, program years 2021 onward.
Medicare prescribing footprint (2024)
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
84.5%Proton pump inhibitor44.2%Pantoprazole Sodium58%Omeprazole34%Esomeprazole Magnesium9%Part D<11 patientsAminosalicylate13.8%Mesalamine82%Sulfasalazine18%Part D<11 patients+ 5 more classes in this area
Cancer & immunology
6.8%Purine Antimetabolite2.5%Azathioprine100%Part D<11 patientsJAK inhibitor2.5%Rinvoq100%Part D<11 patients+ 1 more class in this area
Cardiovascular
3.4%Bile Acid Sequestrant3.4%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.
- RCPE in association with the American College of Gastroenterology and the Scottish Society of Gastroenterology – Gastroenterology: A global perspective
The Journal of the Royal College of Physicians of Edinburgh
2025 - Comparative management practices of Wilson disease in Californian and Italian providers
Journal of Health Population and Nutrition
2025 - 12130 Polypoid Endometriosis Mimicking Carcinomatosis on Laparoscopy
Journal of Minimally Invasive Gynecology
2024
Similar KOLs
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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, so funding, congress activity and public presence aren't shown. Absence of a section means “not yet looked,” never “none found.”