Victor Machicao is a Gastroenterology physician affiliated with The University of Texas Health Science Center. OpenAlex indexes 81 publications with 1,442 citations (h-index 19).
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
6400 Fannin St
Suite 1400
Houston, TX 770301521
Telephone
713-704-3450Registry record last updated 14 Apr 2016.
Industry payments
10 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Medtronic, Inc.Program year20251 payment
- CONMED CorporationProgram year20241 payment
- Sirtex Medical IncProgram year20231 payment
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
55.3%Rifamycin Antibacterial15.3%Xifaxan100%Part D≥26 patientsOsmotic Laxative14.8%Lactulose59%Gavilyte-G23%Constulose18%Part D<11 patients+ 5 more classes in this area
Cardiovascular
34.9%Loop diuretic12.2%Furosemide100%Part D≥46 patientsAldosterone antagonist (MRA)12.1%Spironolactone100%Part D≥31 patients+ 1 more class in this area
Cancer & immunology
6%Purine Antimetabolite4.1%Azathioprine100%Part D≥11 patientsCalcineurin inhibitor1.9%Tacrolimus100%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.
- S2441 Stumped by Stones: A Teaching Point about Symptomatic Choledocholithiasis With Persistently Negative Imaging Findings
The American Journal of Gastroenterology
2024 - S3556 Drug-Induced Autoimmune Hepatitis: A Rare Complication of Infliximab Therapy in the Setting of Inflammatory Bowel Disease
The American Journal of Gastroenterology
2023 - 638. Utility of Recombinant Hepatitis B Vaccine in Pre-liver Transplant Candidates
Open Forum Infectious Diseases
2022
Similar KOLs
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The University of Texas Health Science Center
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Jimmy Espinoza, MD
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Charles Rice, MD
The Rockefeller University
Kris Kowdley, MD
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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.”