Top experts by indication / Cardiology
Most active experts in Pulmonary Hypertension
2026 edition, data as of October 26, 2026
313 key opinion leaders in the directory are tagged to Pulmonary Hypertension. 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. 58 of the 313 people tagged to this indication have this count on record; the 25 highest are listed. Source: ClinicalTrials.gov.
| # | Expert | trials |
|---|---|---|
| 1 | Rajan SaggarUniversity of California, Los Angeles, CA | 7 trials |
| 2 | Roham ZamanianStanford University School of Medicine, CA | 6 trials |
| 3 | Aaron WaxmanBrigham and Women's Hospital, MA | 5 trials |
| 4 | Marc SimonUniversity of California, San Francisco, CA | 5 trials |
| 5 | Eric AustinVanderbilt University Medical Center, TN | 4 trials |
| 6 | Nicholas HillTufts Medical Center, MA | 4 trials |
| 7 | Lisa MielniczukMayo Clinic, MN | 3 trials |
| 8 | Sudarshan RajagopalNC | 3 trials |
| 9 | Yogesh ReddyMN | 3 trials |
| 10 | Peter LearyUniversity of Washington Medical Center, WA | 3 trials |
| 11 | Barry BorlaugMayo Clinic, MN | 3 trials |
| 12 | Yuchi HanThe Ohio State University, OH | 3 trials |
| 13 | Anna HemnesVanderbilt University Medical Center, TN | 3 trials |
| 14 | Robert BaughmanUniversity of Cincinnati College of Medicine, OH | 3 trials |
| 15 | Kurt PrinsUniversity of Minnesota, MN | 2 trials |
| 16 | Steven AbmanUniversity of Colorado School of Medicine, CO | 2 trials |
| 17 | Ashwin RavichandranAscension St. Vincent Indianapolis, IN | 2 trials |
| 18 | Corey VentetuoloBrown University Health, RI | 2 trials |
| 19 | Harrison FarberTufts Medical Center, MA | 2 trials |
| 20 | Hilary DubrockMayo Clinic, MN | 2 trials |
| 21 | Victor TapsonInari Medical, CA | 2 trials |
| 22 | Marc SemigranMassachusetts General Hospital, MA | 1 trial |
| 23 | Myung ParkTX | 1 trial |
| 24 | Muhammad TariqNC | 1 trial |
| 25 | Maya GuglinRutgers, NJ | 1 trial |
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. 18 of the 313 people tagged to this indication have at least 2 registered trials in it and this count on record; the 18 highest are listed. Source: OpenAlex.
| # | Expert | citations |
|---|---|---|
| 1 | Barry BorlaugMayo Clinic, MN | 55,517 citations |
| 2 | Victor TapsonInari Medical, CA | 55,237 citations |
| 3 | Steven AbmanUniversity of Colorado School of Medicine, CO | 36,146 citations |
| 4 | Nicholas HillTufts Medical Center, MA | 28,650 citations |
| 5 | Harrison FarberTufts Medical Center, MA | 19,363 citations |
| 6 | Anna HemnesVanderbilt University Medical Center, TN | 12,964 citations |
| 7 | Aaron WaxmanBrigham and Women's Hospital, MA | 12,010 citations |
| 8 | Eric AustinVanderbilt University Medical Center, TN | 11,171 citations |
| 9 | Roham ZamanianStanford University School of Medicine, CA | 10,119 citations |
| 10 | Yuchi HanThe Ohio State University, OH | 9,373 citations |
| 11 | Marc SimonUniversity of California, San Francisco, CA | 9,172 citations |
| 12 | Rajan SaggarUniversity of California, Los Angeles, CA | 8,466 citations |
| 13 | Corey VentetuoloBrown University Health, RI | 5,884 citations |
| 14 | Lisa MielniczukMayo Clinic, MN | 5,533 citations |
| 15 | Kurt PrinsUniversity of Minnesota, MN | 2,739 citations |
| 16 | Ashwin RavichandranAscension St. Vincent Indianapolis, IN | 2,656 citations |
| 17 | Peter LearyUniversity of Washington Medical Center, WA | 2,403 citations |
| 18 | Hilary DubrockMayo Clinic, MN | 2,376 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. 16 of the 313 people tagged to this indication have at least 2 registered trials in it and this count on record; the 16 highest are listed. Source: NIH RePORTER.
| # | Expert | awards |
|---|---|---|
| 1 | Steven AbmanUniversity of Colorado School of Medicine, CO | 17 awards |
| 2 | Anna HemnesVanderbilt University Medical Center, TN | 12 awards |
| 3 | Eric AustinVanderbilt University Medical Center, TN | 6 awards |
| 4 | Peter LearyUniversity of Washington Medical Center, WA | 6 awards |
| 5 | Harrison FarberTufts Medical Center, MA | 6 awards |
| 6 | Sudarshan RajagopalNC | 5 awards |
| 7 | Corey VentetuoloBrown University Health, RI | 5 awards |
| 8 | Barry BorlaugMayo Clinic, MN | 5 awards |
| 9 | Kurt PrinsUniversity of Minnesota, MN | 4 awards |
| 10 | Robert BaughmanUniversity of Cincinnati College of Medicine, OH | 4 awards |
| 11 | Aaron WaxmanBrigham and Women's Hospital, MA | 3 awards |
| 12 | Yuchi HanThe Ohio State University, OH | 3 awards |
| 13 | Roham ZamanianStanford University School of Medicine, CA | 2 awards |
| 14 | Yogesh ReddyMN | 1 award |
| 15 | Nicholas HillTufts Medical Center, MA | 1 award |
| 16 | Marc SimonUniversity of California, San Francisco, CA | 1 award |
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. 4 of the 313 people tagged to this indication have at least 2 registered trials in it and this count on record; the 4 highest are listed. Source: Congress abstracts, DOI-verified.
| # | Expert | contributions |
|---|---|---|
| 1 | Yuchi HanThe Ohio State University, OH | 2 contributions |
| 2 | Nicholas HillTufts Medical Center, MA | 1 contribution |
| 3 | Rajan SaggarUniversity of California, Los Angeles, CA | 1 contribution |
| 4 | Marc SimonUniversity of California, San Francisco, CA | 1 contribution |
Emerging
17 of the 313 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.
| Alexandra CornellMerck & Co., OR |
| Lindsay ForbesUniversity of Colorado Anschutz, CO |
| Daniel ForshaChildren's Mercy Hospital, MO |
| Brian FoutyUniversity of South Alabama, AL |
| Grace FreireJohns Hopkins University School of Medicine, FL |
| Garvan KaneMayo Clinic, MN |
| Carolyn LarsenAZ |
| Girish MourAZ |
| Nils NickelTexas Tech University Health Sciences Center, TX |
| Arni NuttingMedical University of South Carolina, SC |
| Prema RamaswamyNY |
| Anthony SalehWeill Cornell Medicine, NY |
| Timothy SlesnickEmory University, GA |
| Laszlo VaszarAZ |
| Elizabeth VolzUniversity of North Carolina at Chapel Hill, NC |
| J. WaldmanUniversity of New Mexico, NM |
| David ZismanCleveland Clinic, FL |
How these tables are computed
The cohort is every profile in the directory tagged to Pulmonary Hypertension, 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 Pulmonary Hypertension profile in the directory