About Us

Preferred Research Partners is comprised of a network of clinical research investigators in multiple therapeutic areas who are dedicated to providing quality care to their research & clinical populations while producing quality data for sponsors & CROs. PRP provides the necessary means to physicians to conduct research at their sites without disruption to their clinical obligations or staff. Our offices are located in the heart of Little Rock, Arkansas – off Financial Center Parkway by Embassy Suites. We welcome visitors to tour our facilities during business hours.

The staff of Preferred Research Partners is comprised of experienced, compassionate people, dedicated to the practice of clinical research. As a participant in a clinical research trial, you will experience excellent care and attention, and will always be treated with the respect that you deserve. Investigators will find the abundance of therapeutic expertise and clinical trial experience they require for dependable, accurate trial results.

PRP office decoration.

Our team includes 4 full-time certified clinical research coordinators, 6 physicians, 3 psychologists and 1 research assistant. We also have PRN staff available depending upon study needs. PRP enjoys a low staff turnover rate, which contributes to its efficient operations and steady growth.  Click below to learn more about:


Paul E. Wylie, MD headshot.

Paul E. Wylie, MD


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Dr. Wylie leads our team of physician investigators & serves as Medical Director for PRP. Dr. Wylie has been practicing medicine since 1989, and is certified by the American Board of Psychiatry and Neurology and the American Board of Sleep Medicine. He is a former Medical Director at St. Vincent Infirmary Sleep Disorders Center, and is currently Medical Director at the Arkansas Center for Sleep Medicine in Little Rock. Dr. Wylie has conducted clinical & device research for over 20 years excelling in recruitment & retention for all of his studies. He is available to investigators at all times to mentor & provide guidance to develop their research practice.

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Amy Kelley, BSN, RN, CCRC headshot.

Amy Kelley, BSN, RN, CCRC

Vice President

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Amy Kelley leads our team of clinical research coordinators. She holds an ACRP Clinical Research Coordination Certification, and has extensive experience in sleep, pharmaceutical, and device trials. Amy will serve as the investigators & sponsors primary point of contact. She works to ensure oversight of the clinical & administrative team as well as overseeing aspects of the clinical trials process such as regulatory, budgets & contracts, marketing & lead development.

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John Tyler Baber, M.D.

Gastroenterology & Hepatology

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Dr. Baber is a Gastroenterologist/ Hepatologist who serves as the Principal Investigator on all GI trials for Preferred Research. He is very involved in recruitment & retention of quality participants leading him to be a top enroller on many trials.

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Kelly Knight, CCRP

Clinical Research Coordinator

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Kelly holds a SoCRA clinical research coordinator certification & has coordinated over 100 trials. She succeeds in providing study support to patients and clinicians alike. Kelly has excelled in clinical trial enrollment & received awards and commendations by sponsors for her work on many studies.

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Jessica Watson, CCRC headshot.

Jessica Watson, CCRC

Clinical Research Coordinator

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Jessica is an ACRP certified clinical research coordinator who excels at patient care & follow-up. She brings to her sites a wealth of knowledge & expertise in the clinical trials process.

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Jessica Woosley

Regulatory Coordinator


Stacy Tierney, RPSGT headshot.

Stacy Tierney, CCRP, RPSGT

Research Coordinator & Polysomnography Technician


Hannah Griggs, RPSGT

Research Assistant & Polysomnography Technician

Joseph Bush, RPSGT headshot.

Joseph Bush, RPSGT

Polysomnography Technician

Emily Knight headshot.

Emily Knight

Research Coordinator


Elise McCormick

Research Assistant

Renea Henderson, DO

Adult, Child & Adolescent Psychiatry


Amber McGuire, APRN



Natasa Jenson, MD headshot.

Natasa Jenson, MD

Emergency Medicine


Hannah Morgan, MS, LAC headshot.

Hannah Morgan, MS, LAC

Psychological Rater

IATA Certified Staff
Private Fully-Equipped Patient Exam Rooms
3-bed, 1-bath Accredited Sleep Lab
Secure Supply and Drug Storage
Laboratory Facilities for Phlebotomy & Sample Processing


We appreciate your interest in Preferred Research Partners’ clinical trials. Feel free to contact us regarding clinical trials at any time as we are always building our database for current and future studies. Our number one concern is providing the highest quality care for our patients.

Please provide the following information so that we can contact you regarding enrolling in our current and upcoming studies, or feel free to contact us at (501) 553-9987.