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Ellen Ritchie, MD

Basic profile

Cornell University

ORCIDNPI
RegionNew York, NY · NortheastSpecialtyMedical OncologyFocusOncology
Last active 2024findmyKOL typefindmyKOL type: our influence ranking, shown when you reveal the full profileLatest publication2024Online presenceNot yet checkedPayments2021 onwardNIH fundingNot yet indexedWhy? →

Ellen Ritchie is an Oncology physician affiliated with Cornell University. OpenAlex indexes 300 publications with 8,172 citations (h-index 41); ClinicalTrials.gov lists 4 registered studies matched to this name.

Overview

Scholarship

indexed output and impact (OpenAlex)
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300publications

Distinct works indexed by OpenAlex, matched via ORCID.

8,172citations

Total citations across indexed works.

41h-index

Hirsch index, productivity × impact (OpenAlex).

Clinical & industry

trials, payments and federal funding
4clinical trials

Investigator role on registered studies.

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8companies · 2021 onward

Companies reporting payments to CMS. Facts, not judgments.

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Contact

The practice address and phone this provider lists in the federal NPPES (CMS) registry.

Practice address

520 East 70th Street, Starr 341
New York, NY 10021

Telephone

212-746-6264

Registry record last updated 16 Sept 2011.

View the NPPES registry record

Clinical trials

2 more trial records behind the reveal.Reveal →

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:

View the CMS Open Payments record ↗

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

    66%
    Kinase inhibitor39.2%
    Jakafi80%Sprycel11%Imatinib Mesylate9%
    Part D<11 patients
    Antimetabolite9.7%
    Hydroxyurea100%
    Part D16 patients

    + 4 more classes in this area

  • Anti-infectives

    18.4%
    Herpesvirus Nucleoside Analog DNA Polymerase Inhibitor8%
    Valacyclovir100%
    Part D12 patients
    Fluoroquinolone Antibacterial4%
    Levofloxacin100%
    Part D<11 patients

    + 2 more classes in this area

  • Blood & clotting

    4.2%
    Factor Xa inhibitor4.2%
    Eliquis100%
    Part D<11 patients
Where care is delivered (Part B)100% facility · 0% office

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.

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.”