Roderick Rapier is a Gastroenterology physician affiliated with University of California San Diego. OpenAlex indexes 20 publications with 348 citations (h-index 10).
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
4647 Zion Ave
San Diego, CA 921202507
Telephone
619-528-5000Provider last certified this registry record 2 Apr 2026.
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
96.3%Osmotic Laxative46.2%Gavilyte-C100%Part D≥424 patientsProton pump inhibitor35.1%Omeprazole81%Pantoprazole Sodium19%Part D≥79 patients+ 2 more classes in this area
Respiratory
2.6%Corticosteroid2.6%Budesonide Dr100%Part D<11 patientsCancer & immunology
1.1%Interleukin-12 Antagonist1.1%Stelara100%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.
NIH funding
1 NIH research award on record, funded 1999–1999 per NIH RePORTER. The latest:
Awards in the NIH RePORTER records where a principal investigator name matches this physician at an organization in their practice state. Latest award years shown; each row links to the project record on RePORTER.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Disability index in a randomized controlled trial of emergency sclerotherapy versus portacaval shunt for bleeding varices in cirrhosis
The American Journal of Surgery
2012 - A randomized controlled trial of emergency treatment of bleeding esophageal varices in cirrhosis for hepatocellular carcinoma
The American Journal of Surgery
2011
Similar KOLs
Other experts from the same institution or the same specialty.
Robert Weinreb, MD
University of California San Diego
Dilip Jeste, MD
University of California San Diego
Lawrence Eichenfield, MD
University of California San Diego
Stephen Spector, MD
University of California San Diego
Charles Rice, MD
The Rockefeller University
Edward Loftus, MD
Mayo Clinic Rochester
Naga Chalasani, MD
Indiana University School of Medicine
Bruce Sands, MD
Icahn School of Medicine at Mount Sinai
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.”