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John Kempen, MD

Enriched profile

Director of Epidemiology for Ophthalmology, Massachusetts Eye and Ear; Professor of Ophthalmology, Harvard Medical School · Massachusetts Eye and Ear

ORCID↗NPI↗
✓ Full profile
Region🇺🇸 Boston, MA · Northeast · United StatesSpecialtyOphthalmologyFocusOcular Diseases and Behçet’s Syndrome+4
Active KOLfindmyKOL type: EliteLatest publication2026Online presenceNone verifiedPayments2021–2021NIH funding2017–2026

John Kempen is Director of Epidemiology for Ophthalmology, Massachusetts Eye and Ear; Professor of Ophthalmology, Harvard Medical School at Massachusetts Eye and Ear. OpenAlex indexes 341 publications with 43,661 citations (h-index 74); ClinicalTrials.gov lists 3 registered studies with this person as an investigator. By OpenAlex citation count, this profile ranks in the top 1% of Ophthalmology profiles in the findmyKOL directory.

Data verified 8 Oct 2026

Overview

Updated 14 Oct 2026

John Kempen, MD, is Director of Epidemiology for Ophthalmology, Massachusetts Eye and Ear. The public record shows 341 publications with 43,661 citations (h-index 74), centered on Ocular Diseases and Behçet’s Syndrome, Ocular Infections and Treatments, Glaucoma and retinal disorders. It also documents an investigator role on 3 registered clinical trials, industry payments reported by 1 companies, 5 NIH-funded awards (2017–2026).

  • Most recent indexed publication: 2026 · Ocular immunology and inflammation
  • Top research focus: Ocular Diseases and Behçet’s Syndrome
  • 3 registered trials on ClinicalTrials.gov
  • Open Payments reporting from 1 companies

Generated from the cited public record · current as of 14 Oct 2026. Every fact links its source below.

Indications focus

from trials led + research topics
Trachoma2 trialsTrichiasis2 trialsDry Eye / Uveitis1 trialUveitis1 trialEyelid Diseases1 trialMacular Degeneration (AMD)Glaucoma

Research focus

OpenAlex concept fingerprint
Ocular Diseases and Behçet’s SyndromeOcular Infections and TreatmentsGlaucoma and retinal disordersRetinal Diseases and TreatmentsOphthalmology and Visual Impairment Studies

Works with

trial sponsors and companies reporting payments
Gilead Sciences, Inc.Clinical trials—Industry payments1JHSPH Center for Clinical TrialsClinical trials1Industry payments—Massachusetts Eye and Ear InfirmaryClinical trials1Industry payments—University of PennsylvaniaClinical trials1Industry payments—

Scholarship

indexed output and impact (OpenAlex)
View publications ↓
341publications

Distinct works indexed by OpenAlex, matched via ORCID; 38 in PubMed.

43,661citations

Total citations across indexed works.

74h-index

Hirsch index (OpenAlex). i10-index 196.

Clinical & industry

trials, payments and federal funding
3clinical trials

Investigator role on registered studies.

View trials ↓
1companies · 2021–2021

Companies reporting payments to CMS. Facts, not judgments.

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5NIH grants · 2017–2026

Federally funded research awards.

View funding ↓

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.

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Clinical trials

Updated 14 Oct 2026

Listed as an investigator on 3 registered studies on ClinicalTrials.gov. The most recent:

Industry payments

Updated 14 Oct 2026

1 company reported payments to CMS in program years 2021–2021. These are public disclosures, not judgments. The latest:

NIH funding

Updated 14 Oct 2026

5 NIH research awards on record, funded 2017–2026 per NIH RePORTER. The latest:

Publications

Updated 14 Oct 2026

Their five most recent publications, matched to their ORCID record and linked to PubMed.

Network

Updated 14 Oct 2026

The people this person publishes with most, by number of co-authored papers. Names link to their own profile when we have one.

Douglas A. Jabs120Jennifer E. Thorne102James Todd Rosenbaum65Eric B. Suhler59Charles Stephen Foster57Grace A. Levy-Clarke54Robert Burton Nussenblatt47Sapna S. Gangaputra46Vishali Gupta45Rupesh V. Agrawal38Hatice Nida Sen35Janet T. Holbrook32Carlos Eduardo Pavesio29David Steven Friedman29Serge Resnikoff28Michael M. Altaweel27Jyotirmay Biswas27James P. Dunn27Konrad Pesudovs27Ebenezer Daniel27Lucia Sobrin27Debra Anne Goldstein26Hugh Ringland Taylor25Moncef Khairallah25Maxwell Pistilli24Rupert Bourne24Alejandra de‐la‐Torre24Nirali P. Bhatt24Craig W. Newcomb24Maria Vittoria Cicinelli23Elizabeth A. Sugar23Padmamalini Mahendradas23Quan Dong Nguyen23Seth Flaxman22Janet L Leasher22Sofia N. Androudi22Jost Bruno Jonas22Jalal Arabloo21Aniruddha Kishandutt Agarwal21Tasanee Braithwaite21

Background & recognition

Updated 14 Oct 2026

Credentials, appointments and honors, newest first, each linked to the public source it came from.

Education

degrees and training on record

Editorial & leadership roles

journal and society appointments

Secondary affiliations

appointments beyond the home institution

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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