A girl smiles at her older brother

Pediatric Care to Build a Strong Body and Mind

Your child has amazing hopes and dreams. We want to help them get there — and watch them grow and flourish. The trusted pediatric care team at AdventHealth Ottawa, formerly Ransom Memorial Health, is here for every bump in the road.

Count on us to care for your child through well-child visits, sports physicals, minor illnesses, minor injuries, chronic and complex illnesses, mental health conditions, asthma, emergency care and so much more. We make your child’s health our top priority.

We’re here to help you find the right physician or a location that’s convenient for you.

Comprehensive Pediatric Care Under One Roof

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Helps Kids Stay Active and Healthy

At an early age, it’s important to help kids build the foundation for a healthy lifestyle. That means developing healthy eating and exercise habits that will carry them through life. The team at AdventHealth Ottawa believes that staying active is important for the development of a healthy heart, lungs and mind, and keeps muscles and bones strong.

Here are a few reasons why it’s important to help kids become and stay active:

  • Active children are more likely to become active adults
  • More physical activity in children is associated with higher test scores in reading and math
  • Regular exercise promotes self-efficacy with regard to health and self-image
A portrait picture of Dr. Koster

About Dr. Koster

Chris Koster, MD, FAAP, is a Board-certified pediatrician with AdventHealth Ottawa. Dr. Koster is a caring, competent physician with a reputation for great patient care. He earned his medical degree from the University of Kansas School of Medicine and completed his pediatrics residency at Children's Mercy Hospital. He is a fellow of the American Academy of Pediatrics. Prior to joining AdventHealth in 2017, Dr. Koster was a pediatric hospitalist at Lawrence Memorial Hospital and an outpatient pediatrician at PANDA Pediatrics in Lawrence.

Dr. Koster’s clinic is located at the AdventHealth Ottawa Health Park.

AdventHealth Children’s Care


“I’ve made caring for children my life’s passion. I’m a parent, too, so I get it. Parents want the best for their family, and I come to work every day with that in mind — doing what’s best for children.”

Author name Chris Koster

Author title MD, FAAP

The Most Compassionate Support

  • Asthma Care
  • Circumcision for Newborns
  • Diagnosis and Treatment of Acute (sudden) Illness or Injury
  • Immunizations
  • Lactation Support and Medicine for Mother and Infant
  • Medical Tests
  • Mental Health Evaluation and Treatment (ADHD, Anxiety, Depression)
  • Newborn Care
  • Screenings: Dental, Hearing, Lead, Nutrition, and Vision
  • Sick Care and Injuries
  • Sport and Camp Physicals
  • Sports Medicine
  • Teen Reproductive Health
  • Treatment of Chronic and Recurrent Health Conditions
  • Well-child Care (Routine Checkups)
Doctor checking the arm of a young cheerleader.

Children’s Health Care You Can Count On

When you need extra care and support to keep your kids safe and healthy, children’s care team at AdventHealth Ottawa will be there for you.

Now Offering Vaccinations

We offer vaccinations for both private insurance and Medicaid/uninsured

We can also offer “catch up vaccine schedules” for children whose vaccinations have been delayed

AdventHealth Ottawa is a VFC (Vaccines for Children) Provider!

An young, injured basketball player is seen by her doctor

Sports Physicals

Click below to download the 2019 PPE Physical Form

Find Children's Care at AdventHealth Ottawa

Location Type
Doctor with Child and Family

Children’s Health Care You Can Count On

You didn't see this coming. But now that the journey with your child's complex health issues has begun, there’s nothing you won’t do to ease the way. At AdventHealth, we’re right there with you. As your child’s dedicated pediatric care team, we’re here to provide a way forward that helps your little girl or boy live a full and joyful life.