Jonathan Downie is a Gastroenterology physician affiliated with Massachusetts General Hospital. OpenAlex indexes 44 publications with 563 citations (h-index 10).
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex, matched via ORCID.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Clinical & industry
trials, payments and federal fundingIndustry payments
1 company reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
1 company with payments on record in CMS Open Payments (2021 onward), matched to this physician's NPI. The itemized breakdown by company, amount and year is part of the full profile. Why? →
Medicare prescribing footprint (2023)
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
100%Guanylate Cyclase-C Agonist33.3%Linzess100%Part D<11 patientsSerotonin-3 Receptor Antagonist28.1%Ondansetron Odt100%Part D<11 patients+ 2 more classes in this area
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.
- Natural Language Processing Algorithm Accurately Classifies Diverticulitis-Related Complications and Predicts Long-Term Outcomes
Clinical Gastroenterology and Hepatology
2026 - Genetic contributions to mitochondrial dysfunction in amyotrophic lateral sclerosis etiology
Human Genetics and Genomics Advances
2026 - Droplet vs Picowell: Considerations for Single-cell Transcriptomic Profiling of Human Colon Biopsies
Cellular and Molecular Gastroenterology and Hepatology
2025 - “PIK”ing the Right Patients for Adjuvant Aspirin Therapy for Colorectal Cancer
Clinical Cancer Research
2025
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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.”