John Reagan is an Oncology physician affiliated with Brown University. OpenAlex indexes 190 publications with 2,458 citations (h-index 26); ClinicalTrials.gov lists 2 registered studies matched to this name.
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 fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
593 Eddy St
George Bldg., 3rd Fl. #302
Providence, RI 029034923
Telephone
401-444-5435Registry record last updated 13 Feb 2017.
Clinical trials
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
8 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- E.R. Squibb & Sons, L.L.C.Program year20241 payment
- Janssen Scientific Affairs, LLCProgram year20241 payment
- Celgene CorporationProgram 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.
Cancer & immunology
54%Thalidomide Analog17.4%Lenalidomide64%Revlimid25%Pomalyst11%Part D<11 patientsKinase inhibitor13.4%Brukinsa27%Imatinib Mesylate24%Jakafi20%Sprycel14%Calquence8%Imbruvica8%Part D<11 patients+ 4 more classes in this area
Nervous system
10.1%Opioid Agonist5.9%Oxycodone Hcl60%Oxycontin40%Part D<11 patientsGabapentinoids3.1%Gabapentin100%Part D<11 patients+ 1 more class in this area
Blood & clotting
7%Factor Xa inhibitor3.5%Eliquis100%Part D<11 patientsThrombopoietin Receptor Agonist1.5%Promacta100%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.
Similar KOLs
Other experts from the same institution or the same specialty.
James Klinger, MD
Brown University
Sharon Rounds, MD
Brown University
William Corrao, MD
Brown University
Eric Gartman
Brown University
Carl June, MD
University of Pennsylvania
Rainer Storb
University of Washington
Christina Fitzmaurice, MD
Larry Norton, MD
Memorial Sloan Kettering Cancer Center
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.”