Gerald Appel, MD
Enriched profileCo-Director of Clinical Nephrology; Professor of Clinical Medicine · Columbia University Irving Medical Center
Gerald Appel is Co-Director of Clinical Nephrology; Professor of Clinical Medicine at Columbia University Irving Medical Center. OpenAlex indexes 27 publications with 2,099 citations (h-index 15); ClinicalTrials.gov lists 3 registered studies with this person as an investigator.
Data verified 14 Aug 2026
Overview
Updated 31 Aug 2026
Gerald B. Appel, MD, is Co-Director of Clinical Nephrology at Columbia University Irving Medical Center / NewYork-Presbyterian Hospital. The public record shows 27 publications with 2,099 citations (h-index 15), centered on Renal Diseases and Glomerulopathies, Amyloidosis: Diagnosis, Treatment, Outcomes, Complement system in diseases. It also documents an investigator role on 3 registered clinical trials, industry payments reported by 18 companies, 1 NIH-funded awards (1985–2002).
- Most recent indexed publication: 2025 · Journal of the American Society of Nephrology
- Top research focus: Renal Diseases and Glomerulopathies
- 3 registered trials on ClinicalTrials.gov
- Open Payments reporting from 18 companies
Generated from the cited public record · current as of 31 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; 1 in PubMed.
Total citations across indexed works.
Hirsch index (OpenAlex). i10-index 18.
Clinical & industry
trials, payments and federal fundingContact
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 31 Aug 2026
Listed as an investigator on 3 registered studies on ClinicalTrials.gov. The most recent:
- Lupus Nephritis Biomarker Study: Baseline Characteristics of Patients
Sponsor: Columbia University
- Eculizumab Therapy for Dense Deposit Disease and C3 Nephropathy
Sponsor: Columbia University
- Treatment of Resistant Nephrotic Syndrome With ACTH Gel (ACTHAR)
Sponsor: Columbia University
Industry payments
Updated 31 Aug 2026
18 companies reported payments to CMS in program years 2021–2025. These are public disclosures, not judgments. The latest:
- Calliditas Therapeutics US Inc.Program year2025103 payments$150,165openpaymentsdata.cms.gov ↗
- GlaxoSmithKline, LLC.Program year202520 payments$25,300openpaymentsdata.cms.gov ↗
- Travere Therapeutics, Inc.Program year202519 payments$13,401openpaymentsdata.cms.gov ↗
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.
Nervous system
100%gamma-Aminobutyric Acid A Receptor Positive Modulator100%Zolpidem Tartrate100%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
Updated 31 Aug 2026
1 NIH research award on record, funded 1985–2002 per NIH RePORTER. The latest:
- EVALUATE RENAL PROTECTIVE EFFECTS OF LOSARTAN IN NIDDM
Columbia University Health Sciences
FY2002$192,910M01RR000645 - EVALUATE RENAL PROTECTIVE EFFECTS OF LOSARTAN IN NIDDM
Columbia University Health Sciences
FY2001$192,910M01RR000645 - EVALUATE RENAL PROTECTIVE EFFECTS OF LOSARTAN IN NIDDM
Columbia University Health Sciences
FY2001M01RR000645
Publications
Updated 31 Aug 2026
Their five most recent publications, matched to their ORCID record and linked to PubMed.
- Natural History and Clinicopathological Associations of TRPC6-Associated Podocytopathy.
Journal of the American Society of Nephrology
Article2025
Most-cited works
by citation count (OpenAlex)- 01Proliferative Glomerulonephritis with Monoclonal IgG Deposits421 citations2009
- 02Renal Monoclonal Immunoglobulin Deposition Disease391 citations2001
- 03
- 04
- 05Pathology after Eculizumab in Dense Deposit Disease and C3 GN154 citations2012
Network
Updated 31 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 31 Aug 2026
This person's own public accounts first, then places where others mention them. Two different things, listed separately.
Owned accounts
public accounts run by this person- Doximity
doximity.com/pub/gerald-appel-md
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →doximity.com ↗
Mentions by others
where others cite or feature them- Other
en.wikipedia.org/wiki/Gerald_B._Appel
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 →en.wikipedia.org ↗ - Other
recruit.cumc.columbia.edu/investigatortrials/609
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 →recruit.cumc.columbia.edu ↗
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 31 Aug 2026
Credentials, appointments and honors, newest first, each linked to the public source it came from.
Education
degrees and training on record- 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 →recruit.cumc.columbia.edu ↗
- BA
Cornell University (Phi Beta Kappa, completed in three years with distinction)
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 →recruit.cumc.columbia.edu ↗ - Board Certified
Internal Medicine
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →doctors.columbia.edu ↗ - Board Certified
Nephrology
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →doctors.columbia.edu ↗
Editorial & leadership roles
journal and society appointments- President
New York Society of Nephrology
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 →nephcure.org ↗ - Chair
Council on Glomerulonephritis, National Kidney Foundation (US)
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 →recruit.cumc.columbia.edu ↗ - Medical Advisory Board
National Kidney Foundation of NY/NJ
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →nephcure.org ↗
Awards & honors
honors on the public record- 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 →recruit.cumc.columbia.edu ↗
- 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 →recruit.cumc.columbia.edu ↗
- National Kidney Foundation Lifetime Achievement Award (2005)
'foremost academic nephrologist of the past twenty-five years'
2005verifiedCorroborated 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 →en.wikipedia.org ↗
Secondary affiliations
appointments beyond the home institution- Director
Glomerular Kidney Disease Center, Columbia University
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 →recruit.cumc.columbia.edu ↗ - 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 →doctors.columbia.edu ↗
- Scientific Advisory Board
NephCure Kidney International
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 →nephcure.org ↗
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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