Primary Care KOLs

15 key opinion leaders work in Primary Care. All 15 have enriched profiles with itemized publications, trials, grants and payments.

Accel Clinical Research, Juan Carlos Rondon and Morton Plant Hospital have the largest Primary Care groups. The five largest institutions account for 33% of the area.

11 (73%) are investigators on registered clinical trials, 44 investigator roles in all. The most common indications in their published and trial work are Type 2 Diabetes, COVID-19 and Heart Failure. The companies that appear most often in their trials and reported payments are Astrazeneca, Merck Sharp & Dohme and Amgen. 1 hold NIH grants on record and 15 have reported industry payments.

The most cited are Michael Hassman, Barbara Rizzardi and Kimball Johnson. Every count comes from public federal and open sources and was last published on November 7, 2026.

15
Key opinion leaders: 15
Enriched profiles: 11
Trial investigators: 44
Trial investigator roles: 1
NIH grants on record: 15
Reported industry payments: November 7, 2026
Data as of

How these numbers are counted: sources and methodology.

By the numbers

$75.6M
Industry payments reported, program year 2025Source: CMS Open Payments

Where the work is

The institutions with the most profiles on this list. Each links to its own page.

Institution	KOLs
1Accel Clinical Research	1
2Juan Carlos Rondon	1
3Morton Plant Hospital	1
4Orlando Health Physician Associates - Downtown Orlando	1
5Velocity Clinical Research	1
6Wellness Medical Group	1

How this list is built

Who is listed: every profile whose published research or registered trial activity places them in Primary Care, read from OpenAlex topics, PubMed and ClinicalTrials.gov. This KOL finder lists the area as a whole, sub-areas included.

How the grid is ordered: enriched profiles first, then by citations on OpenAlex. The directory lists the same people with every filter and sort it offers, including recent and rising activity, and exports the result.

What is never here: scraped contact details, prescription claims data, or a judgment of anyone's influence. Every count on this page is read from a public registry and republished with its source and the date it was last published.

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Profiles

Michael Hassman, DO

Active 2025

Enriched profilePrimary CareAdult MedicineNortheast · NJ

8
publications: 6
h-index: 3
trials

Primary Care KOLs

About this list

By the numbers

Where the work is

How this list is built

Profiles

Michael Hassman, DO

Barbara Rizzardi, MD

Kimball Johnson, MD

Hessam Aazami, MD

Kwabena Ayesu, MD

Saad Usmani, MD

George Konis, MD

Mark Turner, MD

Miguel Trevino, MD

Cory Anderson, MD

Matthew Davis, MD

Michael Jacobs, MD

Bruce Rankin, DO

Juan Rondon, MD

Sarah Smiley, DO

Frequently asked questions