Sioux City, Iowa

Velocity Clinical Research, Sioux City

Velocity's research site in Sioux City frequently conducts clinical trials for a broad range of investigational treatments. The studies at this site explore vaccines and medicines developed to treat migraines, diabetes, acne, depression, high cholesterol, and other conditions. Acquired by Velocity in 2022, this location was founded in originally in Dakota Dunes in 2005 and later moved as part of Meridian Clinical Research.

Located near several major highways and roads, the site is easily accessible to thousands of patients. All trials conducted at the site are performed in accordance with ICH and FDA guidelines, and in compliance with GCP. The Sioux City team is committed to being a resource for study participants, to providing the highest quality of patient care with compassion and kindness, and to advancing medicine through research.

Velocity Clinical Research, Sioux City
4802 Sunnybrook Drive, Sioux City, IA 51106

Phone: (712) 639-6300


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Portrait Of Medical Team Standing Outside Hospital

About Velocity Clinical Research

100,000+ people have a joined a study at Velocity

Many people enjoy the study experience and have joined several clinical trials at Velocity.

Velocity has decades of research experience

With sites that were established as long ago as 1986, Velocity has experts who have supported clinical trials for decades.

Velocity studies are led by healthcare professionals

All clinical trials conducted at Velocity are overseen by the U.S. Food and Drug Administration (FDA).

Our experienced research team in Sioux City

Every clinical trial is overseen by a Principal Investigator – a physician who is responsible for the rights, safety and welfare of the study participants. All physicians at Velocity are board certified in their specialty area(s) and all research staff is trained in clinical research regulations, including GCP and HIPAA. Our clinical research team in Sioux City is dedicated to conducting quality research in a professional and caring environment.

  • David Ensz, MD

    Principal Investigator
    David Ensz, MD specializes in family practice, obstetrics, pediatrics, and sports medicine. Board certified in family medicine, Dr. Ensz received his medical degree from University of Nebraska Medial School in Omaha, NE and completed a family medicine residency at University of Nebraska Medical School.

  • Tavane Harrison, ARNP

    Sub Investigator

  • Stacie Webner, ARNP

    Sub Investigator

  • Tonya Grosvenor-Nelson

    Site Director

  • Janet Otto

    Site Manager

Complete the form to start your clinical trial journey in Sioux City

Beyond helping advance medicine, you may also:

  • Get care from a local doctor at no cost
  • Learn about new medicines in development
  • Receive study-related medical exams at no cost
  • Get paid for participating (amounts differ for each study)

After you submit your info, a Velocity staff member will review your info. They will contact you to talk about the study, or others that may be right for you.

Health insurance is generally not needed to join a clinical trial.

Remember, there is never an obligation to join — we're here to help you make the best decision.

Submit your info

Sponsors and CROs

From the leading pharma companies, to the most pioneering biotech startups, Velocity supports those who are exploring new frontiers in human health. Whether you’re ready to conduct a single-site study or a complex, high-volume clinical trial, trust Velocity.

clinical research team

It all starts with people like you.

Without clinical trial participants, it would not be possible to create new medicines, treatments, and cures.