Andrew Mason is a Gastroenterology physician. ClinicalTrials.gov lists 3 registered studies matched to this name.
Overview
Scholarship
indexed output and impact (OpenAlex)Research metrics aren't shown for this record. Either we found no confident publication match for this name, or more than one physician shares the matched author record. We'd rather show nothing than someone else's numbers. Why? →
Clinical & industry
trials, payments and federal fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
Telephone
Practice address and telephone from the federal NPPES registry.
Sign in to view contact details →Clinical trials
- LCP-Tacro vs. Azathioprine for the Treatment of Autoimmune Hepatitis
Sponsor: Veloxis Pharmaceuticals
- Study of Combivir for Patients With Primary Biliary Cirrhosis
Sponsor: University of Alberta
Registered studies on ClinicalTrials.gov where the overall official or a site investigator name-matches this physician, confirmed against known institution/geography. Latest few shown; the full list is part of the full profile.
Industry payments
10 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- ABBVIE INC.Program year20252 payments
- ABBVIE INC.Program year20242 payments
- Olympus America Inc.Program year20242 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
95.9%Proton pump inhibitor75.2%Omeprazole66%Pantoprazole Sodium27%Esomeprazole Magnesium7%Part D<11 patientsAminosalicylate9.9%Mesalamine65%Balsalazide Disodium36%Part D<11 patients+ 2 more classes in this area
Cancer & immunology
4.1%TNF inhibitor4.1%Humira Pen100%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.
Similar KOLs
Other experts from the same institution or the same specialty.
No other directory profiles share this institution yet.
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.”