Breadcrumb
2025 September Faculty Spotlight
Published on September 30, 2025

Dr. Ryan Carnahan
- Hometown: Mitchellville, IA
- Alma mater: The University of Iowa
- Field(s) of Research: Pharmacoepidemiology, Older Adults, Mental Health
- Current Project(s): Iowa Geriatrics Workforce Enhancement Program, PCORnet query fulfillment, Self Monitored
- Topic or title of your current project(s): Iowa Geriatrics Workforce Enhancement Program, PCORnet query fulfillment, Self Monitored Blood Pressure Management Study (co-investigator), BESTMED (comparative effectiveness of second-line diabetes medications), others
What do you tell young researchers or students when the path ahead feels uncertain?
“Life is never certain. Change is the only constant. We have to meet each day as it comes, affect what we can, and accept what we can’t control. If you
meet each day’s challenges and make choices consistent with good values, things will likely work out. Also, don’t be attached to one path. Sometimes
when things don’t go as you’d planned or hoped, they eventually work out better than if they had, at least in the grand scheme of your life. I also have
three quotes:
“Success occurs when opportunity meets preparation.” Zig Ziglar “When you’re going through hell, keep going.” Uncertain who said this
first. “Press on. Nothing in the world can take the place of perseverance.” Calvin Coolidge–there is more to this quote that is worth knowing, but it’s long. “
We’ve know your passcion for music! Has being in a band helped you recharge being in a band helped you recharge outside of work?
“it used to, but with two relatively young children it’s hard to prioritize. I still enjoy playing when I have time.”
If your career were a DAG, what would be the exposure, outcome, and biggest confounder?
“The key exposures were opportunities and mentorship. I couldn’t have had success without help from experienced people. I suppose epidemiology training and recruitment to an epidemiology position could be my confounders, since I was originally planning to be primarily a psychiatric pharmacist. The outcome is to be determined, but I’ve managed to find some success and hopefully have a positive impact on some people.”
If you had to summarize your research philosophy in one prescription label warning, what would it say?
“Warning: Poor study design choices may invalidate your work.”
What project or cause excites you most right now?
“Helping students do high-quality work.”
Describe a piece of your work or an accomplishment that you are most proud of:
“From a project standpoint, I feel like one of my most impactful projects was a dissemination project focused on improving care for people with dementia and behavioral and psychological symptoms. The approach to care that our team developed has seemingly been incorporated into various standards of care. However, I feel it’s most rewarding to watch students grow and know that something I’ve contributed has helped them become successful professionals.”
What is your favorite part of your week?
“The weekend, when I have more time to be with my family, get outside, and exercise. I enjoy work, but it’s nice to recharge.”
If you could design a dream course, what would it cover and why?
“I would enjoy focusing on students developing their projects, because it’s interesting to me and meaningful to them. Structured content is important to develop knowledge, but every project has unique considerations, and students learn from doing projects they care about.”
Which dataset has been your favorite to work with, and what made it special?
“I don’t really have favorites. Every data set has unique advantages and disadvantages. I learned a lot starting out from working with Iowa Medicaid data, so that has a special place in my heart, but there were challenges in getting all the information we wanted from what we were allowed to use.”
Who is your Epi G.O.A.T.? How can we learn more about them?
“I try to learn wherever I find the opportunity and am grateful for many people. Dr. Chrischilles has been an important mentor. I’ve learned a lot from Miguel Hernan’s work and think he provides useful frameworks to design meaningful studies.”
What is something you are thankful for right now?
“My wife and family.”
As Director of Graduate Studies, what skills do you think every public health student should leave with?
“The ability to think critically to keep learning and growing.”
Anything else you would like us to include in your spotlight? (e.g., a good joke, favorite recipe, book recommendation, helpful tip)
“Take care of your own mental and physical health. You can’t pour from an empty cup, and aging will eventually get us all if something else doesn’t first. Exercise, eating well, and nurturing meaningful relationships can extend your health span.”
This or That?
Quiet influence | Loud impact |
Drawing DAGs by hand | Using DAGitty |
Department Head hat Cleaning claims data | Mentor hat Explaining claims data to someone new to Pharmacoepi |
QAT‘s
Quotes of All Time’s
Success occurs when opportunity meets preparation.
Zig Ziglar
When you’re going through hell, keep going.
Anonymous
Press on: nothing in the world can take the place of perseverance. Talent will not; nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not; the world is full of educated derelicts. Persistence and determination alone are omnipotent.
Calvin Coolidge, 30th President of the United States
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