Brian Lacy, MD
Enriched profileConsultant and Professor of Medicine, Division of Gastroenterology and Hepatology · Mayo Clinic
Brian Lacy is Consultant and Professor of Medicine, Division of Gastroenterology and Hepatology at Mayo Clinic. OpenAlex indexes 367 publications with 17,238 citations (h-index 55); ClinicalTrials.gov lists 9 registered studies with this person as an investigator. By OpenAlex citation count, this profile ranks in the top 10% of Gastroenterology profiles in the findmyKOL directory.
Data verified 14 Aug 2026
Overview
Updated 27 Aug 2026
Brian E. Lacy, PHD; MD, is Consultant and Professor of Medicine, Division of Gastroenterology and Hepatology at Mayo Clinic, Jacksonville, FL. The public record shows 367 publications with 17,238 citations (h-index 55), centered on Gastrointestinal motility and disorders, Gastroesophageal reflux and treatments, Helicobacter pylori-related gastroenterology studies. It also documents an investigator role on 9 registered clinical trials, industry payments reported by 13 companies.
- Most recent indexed publication: 2026 · Therapeutic advances in gastroenterology
- Top research focus: Gastrointestinal motility and disorders
- 9 registered trials on ClinicalTrials.gov
- Open Payments reporting from 13 companies
Generated from the cited public record · current as of 27 Aug 2026. Every fact links its source below.
Indications focus
from trials led + research topicsResearch focus
OpenAlex concept fingerprintDrugs & molecules
across trials, industry payments and publicationsWorks with
trial sponsors and companies reporting paymentsScholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex, matched via ORCID; 17 in PubMed.
Total citations across indexed works.
Hirsch index (OpenAlex). i10-index 142.
Clinical & industry
trials, payments and federal fundingFederally funded research awards.
Contact
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
Updated 27 Aug 2026
Listed as an investigator on 9 registered studies on ClinicalTrials.gov. The most recent:
- Diaphragmatic Breathing for the Treatment of Bloating and Distension
Sponsor: Mayo Clinic
Industry payments
Updated 27 Aug 2026
13 companies reported payments to CMS in program years 2021–2025. These are public disclosures, not judgments. The latest:
- Eli Lilly and CompanyProgram year20254 payments$11,475openpaymentsdata.cms.gov ↗
- GlaxoSmithKline, LLC.Program year20253 payments$11,200openpaymentsdata.cms.gov ↗
- Ferring Pharmaceuticals ASProgram year20251 payment
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
62.8%Proton pump inhibitor32.6%Esomeprazole Magnesium100%Part D<11 patientsSerotonin-3 Receptor Antagonist30.2%Ondansetron Odt100%Part D<11 patientsNervous system
37.2%Other antidepressants37.2%Mirtazapine100%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
We didn't find any NIH-funded research awards for this person in NIH RePORTER. Why? →
Publications
Updated 27 Aug 2026
Their five most recent publications, matched to their ORCID record and linked to PubMed.
- Tenapanor is associated with earlier and sustained symptom relief in IBS-C: a post hoc analysis.
Therapeutic advances in gastroenterology
Article2026 - Comparison of High-Resolution Anorectal Manometry and Magnetic Resonance Defecography in Patients With Obstructive Defecation: Are Both Tests Necessary?
Neurogastroenterology and motility
Article2025 - Burden of illness and treatment attitudes among participants meeting Rome IV criteria for irritable bowel syndrome: A nationwide survey in the United States.
Neurogastroenterology and motility
Article2024 - Treatment for chronic idiopathic constipation: Use and satisfaction from a nationwide survey of US participants.
Neurogastroenterology and motility
Article2024 - A novel pilot study to evaluate the efficacy and safety of a wireless patch system in patients with chronic nausea and vomiting.
Neurogastroenterology and motility
Article2024
Most-cited works
by citation count (OpenAlex)- 01Bowel Disorders2,812 citations2016
- 02ACG Clinical Guideline: Management of Irritable Bowel Syndrome822 citations2020
- 03
- 04
- 05Mechanisms, Evaluation, and Management of Chronic Constipation628 citations2020
Network
Updated 27 Aug 2026
The people this person publishes with most, by number of co-authored papers. Names link to their own profile when we have one.
Online presence
Updated 27 Aug 2026
This person's own public accounts first, then places where others mention them. Two different things, listed separately.
Mentions by others
where others cite or feature them- Other
gastrogirl.com/podcast/what-you-need-to-know-about-ibs
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →gastrogirl.com ↗ - Other
gi.org/tag/brian-lacy
- Apple Podcasts
podcasts.apple.com/us/podcast/medically-refractory-gastroparesis-w-dr-brian-lacy/id1585711586
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →podcasts.apple.com ↗
We list an account only when the public record ties it to this person. verified means we've confirmed the match in more than one place; provisional means it looks right but we're still confirming.
Background & recognition
Updated 27 Aug 2026
Credentials, appointments and honors, newest first, each linked to the public source it came from.
Education
degrees and training on record- M.D.
University of Maryland School of Medicine (Baltimore)
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →theromefoundation.org ↗ - Ph.D.
Cell Biology, Georgetown University
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →theromefoundation.org ↗ - Board certified
Gastroenterology and Hepatology
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →theromefoundation.org ↗ - provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →virtual.gastro.org ↗
- Internal Medicine residency and Gastroenterology fellowship
Dartmouth-Hitchcock/Mary Hitchcock Memorial Hospital
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →pri-med.com ↗
Editorial & leadership roles
journal and society appointments- Former Editor-in-Chief
Clinical and Translational Gastroenterology
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →mayoclinic.org ↗ - Co-Chairman
Rome IV Committee on Functional Bowel Disorders (Rome Foundation)
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →theromefoundation.org ↗
Secondary affiliations
appointments beyond the home institution- Program Director
GI Fellowship, and Associate Program Director for Scholarly Activities, Medical Residency Program, Mayo Clinic Jacksonville
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →theromefoundation.org ↗ - Former Section Chief of Gastroenterology and Hepatology and Professor of Medicine
Geisel School of Medicine at Dartmouth / Dartmouth-Hitchcock Medical Center (Lebanon, NH), prior to Mayo Clinic move …
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →dartmed.dartmouth.edu ↗ - Scientific Advisory Board
Biomerica
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →biospace.com ↗
Media & interviews
press, podcasts and appearances- verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →gastrogirl.com ↗
- verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →emoroiddigestpodcast.podbean.com ↗
- "What You Need to Know About IBS"
Gastro Girl podcast, IBS Awareness Month interview
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →gastrogirl.com ↗
Every item links to where we found it. verified means we've confirmed it in more than one place; provisional means we found it and are still confirming.
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