John Kempen is an Ophthalmology physician affiliated with Massachusetts Eye and Ear Infirmary. OpenAlex indexes 352 publications with 40,251 citations (h-index 71); ClinicalTrials.gov lists 1 registered study matched to this name. By OpenAlex citation count, this profile ranks in the top 1% of Ophthalmology profiles in the findmyKOL directory.
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
243 Charles St
Boston, MA 021143002
Telephone
617-573-3431Registry record last updated 21 Jul 2022.
Clinical trials
- FLuorometholone as Adjunctive MEdical Therapy for TT Surgery (FLAME) Trial
Sponsor: Massachusetts Eye and Ear Infirmary
- Fluorometholone as Ancillary Therapy for TT Surgery
Sponsor: University of Pennsylvania
- Multicenter Uveitis Steroid Treatment (MUST) Trial
Sponsor: JHSPH Center for 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
1 company reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Gilead Sciences, Inc.Program year20211 payment
Payment records matched to this physician's NPI in CMS Open Payments, program years 2021 onward.
NIH funding
5 NIH research awards on record, funded 2017–2026 per NIH RePORTER. The latest:
- Overcome the barriers of vision care in Africa using smartphones
Schepens Eye Research Institute
FY2026$357,118R33EY034345 - Long-term Follow-up of the Systemic Immunosuppressive Therapy for Eye Diseases Cohort
Massachusetts Eye and Ear Infirmary
FY2025$2,236,075R01EY014943 - Overcome the barriers of vision care in Africa using smartphones
Schepens Eye Research Institute
FY2025$313,856R33EY034345
Awards in the NIH RePORTER records where a principal investigator name matches this physician at an organization in their practice state. Latest award years shown; each row links to the project record on RePORTER.
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.
Neil Bhattacharyya, MD, FACS
Massachusetts Eye and Ear Infirmary
Demetrios Vavvas, MD, PhD
Massachusetts Eye and Ear Infirmary
Evangelos Gragoudas, MD
Massachusetts Eye and Ear Infirmary
Ivana Kim, MD
Massachusetts Eye and Ear Infirmary
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.”