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Top experts by indication / Oncology

Most active experts in Rectal Neoplasms

2026 edition, data as of October 26, 2026

339 key opinion leaders in the directory are tagged to Rectal Neoplasms. The tables below rank them by one public measure each: registered trials, citations, NIH awards and congress contributions. Each is a count from a named source, not a judgment about the person, and every row links a profile where the count can be checked.

Most registered trials

Registered clinical trials in this indication on which the person is a listed investigator, counted from ClinicalTrials.gov. 338 of the 339 people tagged to this indication have this count on record; the 25 highest are listed. Source: ClinicalTrials.gov.

#Experttrials
1Marwan FakihCity of Hope, CA22 trials
2Norman WolmarkUniversity of Pittsburgh, PA20 trials
3Josep TaberneroVall d'Hebron Institute of Oncology (VHIO)14 trials
4Leonard SaltzMemorial Sloan Kettering Cancer Center, NY13 trials
5Eric Van CutsemUniversity Hospitals Leuven (UZ Leuven)11 trials
6Heinz-Josef LenzUSC Norris Comprehensive Cancer Center, CA10 trials
7Scott KopetzThe University of Texas MD Anderson Cancer Center, TX10 trials
8Nancy KemenyMemorial Sloan Kettering Cancer Center, NY10 trials
9Johanna BendellPfizer, TN9 trials
10Michael OvermanThe University of Texas MD Anderson Cancer Center, TX8 trials
11Nilofer AzadJohns Hopkins University School of Medicine, MD8 trials
12Kanwal RaghavThe University of Texas MD Anderson Cancer Center, TX7 trials
13Hagen KenneckeOregon Health & Science University (OHSU) Knight Cancer Institute, OR7 trials
14Hedy KindlerUniversity of Chicago, IL7 trials
15Wells MessersmithUniversity of Colorado Cancer Center, CO7 trials
16Jeffrey MeyerhardtDana-Farber Cancer Institute, MA7 trials
17William SchelmanWI6 trials
18Gina BrownNE6 trials
19Olatunji AleseEmory University, GA6 trials
20Tim GretenNational Institutes of Health, MD6 trials
21Al BensonNorthwestern University Feinberg School of Medicine, IL6 trials
22Andrea CercekMemorial Sloan Kettering Cancer Center, NY6 trials
23Peter O'DwyerECOG-ACRIN Cancer Research Group, PA5 trials
24John StricklerNC5 trials
25Henry PitotMN5 trials

Most cited

Citations to the person's whole published record in OpenAlex, not only their work in this indication, among the people with at least two registered trials in it. 100 of the 339 people tagged to this indication have at least 2 registered trials in it and this count on record; the 25 highest are listed. Source: OpenAlex.

#Expertcitations
1Eric Van CutsemUniversity Hospitals Leuven (UZ Leuven)176,402 citations
2Josep TaberneroVall d'Hebron Institute of Oncology (VHIO)129,261 citations
3Norman WolmarkUniversity of Pittsburgh, PA124,155 citations
4Jaffer AjaniThe University of Texas MD Anderson Cancer Center, TX118,781 citations
5Razelle KurzrockMedical College of Wisconsin, WI88,610 citations
6Leonard SaltzMemorial Sloan Kettering Cancer Center, NY86,391 citations
7Yuman FongCity of Hope, CA80,193 citations
8Al BensonNorthwestern University Feinberg School of Medicine, IL74,238 citations
9Richard GoldbergAgenus Inc., WV66,884 citations
10Scott KopetzThe University of Texas MD Anderson Cancer Center, TX59,091 citations
11Heinz-Josef LenzUSC Norris Comprehensive Cancer Center, CA57,638 citations
12Tim GretenNational Institutes of Health, MD54,882 citations
13Jeffrey MeyerhardtDana-Farber Cancer Institute, MA53,998 citations
14Eric ChenUniversity of Hong Kong, TX52,043 citations
15Charles LoprinziMayo Clinic, MN49,105 citations
16Amit SingalUT Southwestern Medical Center, TX48,718 citations
17David HongThe University of Texas MD Anderson Cancer Center, TX47,734 citations
18Peter O'DwyerECOG-ACRIN Cancer Research Group, PA43,318 citations
19Alan VenookUniversity of California, San Francisco, CA43,039 citations
20Jordan BerlinVanderbilt University Medical Center, TN40,633 citations
21Hedy KindlerUniversity of Chicago, IL39,455 citations
22Axel GrotheyWest Cancer Center, TN37,716 citations
23Nancy KemenyMemorial Sloan Kettering Cancer Center, NY37,022 citations
24Rona YaegerMemorial Sloan Kettering Cancer Center, NY36,489 citations
25Herbert HurwitzDuke University, NC35,664 citations

Most NIH awards

NIH awards on the person's record in NIH RePORTER, across all of their funded work, among the people with at least two registered trials in this indication. 77 of the 339 people tagged to this indication have at least 2 registered trials in it and this count on record; the 25 highest are listed. Source: NIH RePORTER.

#Expertawards
1Li LiCA17 awards
2Peter O'DwyerECOG-ACRIN Cancer Research Group, PA15 awards
3Dean BrennerUniversity of Michigan, MI14 awards
4Scott KopetzThe University of Texas MD Anderson Cancer Center, TX13 awards
5Branimir SikicStanford University School of Medicine, CA10 awards
6Amit SingalUT Southwestern Medical Center, TX10 awards
7Adrian DobsJohns Hopkins University School of Medicine, MD9 awards
8Manish ShahWeill Cornell Medicine, NY8 awards
9Al BensonNorthwestern University Feinberg School of Medicine, IL8 awards
10Samir GuptaIndiana University School of Medicine, IN8 awards
11Jordan BerlinVanderbilt University Medical Center, TN8 awards
12David BartlettAllegheny Health Network, PA7 awards
13Herbert HurwitzDuke University, NC6 awards
14Charles RogersAZ6 awards
15Anthony ShieldsMI6 awards
16Norman WolmarkUniversity of Pittsburgh, PA6 awards
17Hedy KindlerUniversity of Chicago, IL6 awards
18John BuattiUniversity of Iowa Health Care, IA6 awards
19Steven AlbertsMayo Clinic, MN6 awards
20Jaffer AjaniThe University of Texas MD Anderson Cancer Center, TX5 awards
21Mace RothenbergMuseum of Medicine and Biomedical Discovery, TN5 awards
22Nilofer AzadJohns Hopkins University School of Medicine, MD5 awards
23Jeffrey MeyerhardtDana-Farber Cancer Institute, MA5 awards
24David HongThe University of Texas MD Anderson Cancer Center, TX4 awards
25Salma JabbourRutgers Cancer Institute of New Jersey, NJ4 awards

Most congress contributions

Congress abstracts and presentations attributed to the person and verified by DOI, across every meeting the directory tracks, among the people with at least two registered trials in this indication. 52 of the 339 people tagged to this indication have at least 2 registered trials in it and this count on record; the 25 highest are listed. Source: Congress abstracts, DOI-verified.

#Expertcontributions
1Josep TaberneroVall d'Hebron Institute of Oncology (VHIO)574 contributions
2Michael OvermanThe University of Texas MD Anderson Cancer Center, TX333 contributions
3Johanna BendellPfizer, TN310 contributions
4Norman WolmarkUniversity of Pittsburgh, PA273 contributions
5James GulleyNational Cancer Institute, MD255 contributions
6Theodore HongMassachusetts General Hospital, MA250 contributions
7Siqing FuThe University of Texas MD Anderson Cancer Center, TX241 contributions
8Cathy EngVanderbilt University Medical Center, TN240 contributions
9Anthony TolcherNEXT Oncology, TX229 contributions
10Marwan FakihCity of Hope, CA228 contributions
11Timothy YapThe University of Texas MD Anderson Cancer Center, TX221 contributions
12Leonard SaltzMemorial Sloan Kettering Cancer Center, NY202 contributions
13Kanwal RaghavThe University of Texas MD Anderson Cancer Center, TX191 contributions
14Manish ShahWeill Cornell Medicine, NY174 contributions
15Dustin DemingUniversity of Wisconsin School of Medicine and Public Health, WI174 contributions
16Axel GrotheyWest Cancer Center, TN169 contributions
17Rona YaegerMemorial Sloan Kettering Cancer Center, NY168 contributions
18Michael PishvaianJohns Hopkins University School of Medicine, DC165 contributions
19Hedy KindlerUniversity of Chicago, IL163 contributions
20Al BensonNorthwestern University Feinberg School of Medicine, IL160 contributions
21Jordan BerlinVanderbilt University Medical Center, TN156 contributions
22Shivaani KummarOregon Health & Science University (OHSU), OR155 contributions
23Elena ChioreanUniversity of Washington, WA154 contributions
24Davendra SohalUniversity of Cincinnati, OH144 contributions
25Andrea CercekMemorial Sloan Kettering Cancer Center, NY142 contributions

Emerging

16 of the 339 carry the Emerging flag: publication and trial activity rising over the recent three years, in the top ten percent for growth among specialty peers at a similar career stage. Listed A to Z, not ranked; the flag is a yes or nothing, never a score. How the flag is computed.

Olivia AranhaWashington University School of Medicine in St. Louis, MO
Fiyinfolu BalogunMemorial Sloan Kettering Cancer Center, NY
Dean BrennerUniversity of Michigan, MI
Cathy EngVanderbilt University Medical Center, TN
Cristina FerroneCedars-Sinai Medical Center, CA
Phillip GarfinJazz Pharmaceuticals, CA
Theodore HongMassachusetts General Hospital, MA
Herbert HurwitzDuke University, NC
Udai KammulaUniversity of Pittsburgh, PA
Samir KhleifGeorgetown University School of Medicine, GA
Heinz-Josef LenzUSC Norris Comprehensive Cancer Center, CA
Wells MessersmithUniversity of Colorado Cancer Center, CO
Michael PishvaianJohns Hopkins University School of Medicine, DC
Jonathan SchoenfeldBrigham and Women's Hospital, MA
Apostolia TsimberidouThe University of Texas MD Anderson Cancer Center, TX
Jennifer WoHarvard University, MA

How these tables are computed

The cohort is every profile in the directory tagged to Rectal Neoplasms, from the person's registered trials and published research. Only indications with at least 200 tagged people get a page; a smaller cohort would say more about the tag than about the people in it. Each table sorts the cohort by one count, highest first, with no weighting, no blending and no editorial pass. Ties are broken by the profile's stable internal id so the same counts always give the same order. A person with no count on record is left out of that table, not ranked last.

Citations, NIH awards and congress contributions are counts over a person's whole record, not their work in this indication alone, so those three tables are limited to the indication's investigators: people with at least 2 registered trials in it. Without that rule the most cited people in a cohort are the ones whose careers span many diseases, which is a fact about their careers, not about this field. The registered-trials table is the indication-scoped count itself and has no such limit.

The counts are recomputed on every publish and the page carries the date of the publish it was built from. Previous editions are superseded, not archived.

What is deliberately absent

Reported industry payments are on every profile but are not a table here: a count of payers is a fact, and ranking people by it reads as a judgment. Prescribing volume is part of the paid workspace. The directory's influence tier is a judgment and never orders a public page. Sources and methodology.

Filter, sort and open every Rectal Neoplasms profile in the directory