David Portnoy is an Oncology physician affiliated with West Cancer Center. OpenAlex indexes 50 publications with 2,330 citations (h-index 17).
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
7945 Wolf River Blvd
Germantown, TN 381381762
Telephone
901-683-0055Registry record last updated 2 May 2018.
Industry payments
40 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- PFIZER INC.Program year20258 payments
- Gilead Sciences, Inc.Program year20253 payments
- Merck Sharp & Dohme LLCProgram year20253 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
56%PD-1 inhibitor24.6%Pembrolizumab76%Nivolumab25%Part B, office-administered≥57 patientsLeukocyte Growth Factor7.5%Filgrastim75%Eflapegrastim-xnst26%Part B, office-administered≥20 patients+ 16 more classes in this area
Blood & clotting
23.2%Erythropoiesis-stimulating Agent14.9%Darbepoetin alfa100%Part B, office-administered≥50 patientsIron, parenteral preparations8.2%Ferric carboxymaltose81%Ferric derisomaltose19%Part B, office-administered≥34 patients+ 1 more class in this area
Other
7.8%Kinase inhibitor7.4%Trilaciclib100%Part B, office-administered≥11 patientsFolate Analog0.4%Leucovorin calcium100%Part B, office-administered≥26 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.
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.
Ari Vanderwalde, MD
West Cancer Center
Daniel Vaena, MD
West Cancer Center
Gregory Vidal, MD
West Cancer Center
Noam Vanderwalde, MD
West 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.”