Pediatrician Staff

Tapac staff standing on lawn

Meet our friendly, experienced pediatricians and staff at TAPAC! Our entire team is dedicated to helping you and your child feel at home from the moment you walk through the door. We’re proud to be members of the Traverse City community and serve the needs of their children.

We pride ourselves in being an exceptional clinic where your kids come first. Our practice works hard to meet the needs of children from infancy through college. Compassionate, knowledgeable and supportive staff is the cornerstone of TAPAC’s quality care. All of our pediatricians and medical staff are highly trained and professional specialists, maintaining the highest level of accreditation in pediatrics to address the special needs of infants, children and teens.

We strive to treat each and every patient as we would want our own children to be treated . Our doctors and staff look forward to building a relationship with you and your family.

  • Dr.
    Sarah Mulder

    Dr. Mulder grew up in central Michigan and graduated from Michigan State University’s College of Human Medicine. She completed her residency at the Cleveland Clinic Children’s Hospital where she stayed on for chief resident position. She has worked caring for children in Traverse City since 2009 and has been with TAPAC since they opened in 2011. Dr. Mulder enjoys caring for newborns and has a special interest in breastfeeding as well as preventative medicine. She also loves her school aged and adolescent patients as well as the special challenges they sometimes present. Like all of the providers at TAPAC, Dr. Mulder understands the importance of child and adolescent mental health and has years of experience caring for patients with ADHD, depression, anxiety and autism. 

    Dr. Mulder lives in Traverse City with her two school aged children. She enjoys reading and music as well as being outside biking with her kids, gardening and running.

  • Kristie Koehler, MD

    Kristie graduated from the University of Virginia School of Medicine in 2007 and completed residency at the University of Arizona in 2010. She is a Board Certified Pediatrician and has been working in a rural community in Northern Michigan for the last 7 years. Kristie has 2 children an older healthy son and a younger daughter with severe epilepsy, global developmental delays, and autism. She specializes in children with complex medical issues because she lives it every day. Kristie also enjoys taking care of teens, and hopes they see her as a safe place where anything is up for discussion.

  • Dr.
    Karla Smith

    Her medical training includes both a pediatric residency and fellowship in pediatric pulmonology at James Whitcomb Riley Hospital for Children at Indiana University. In addition to being board certified in pediatrics, she has also earned certification through the American Board of Pediatrics, Sub-Board of Pediatric Pulmonology from 1992- 2006. Dr. Smith cares for many of our areas’ children with pediatric lung disease. Dr. Smith has one adolescent son.  She enjoys outdoor sports, gardening, and cooking.

  • Dr.
    LuAnn Labian

    Raised in southeast Michigan, Dr. Labian received her undergraduate degree from Michigan State University and her medical degree from Wayne State University. After completing her pediatric residency at Columbus Children’s Hospital through Ohio State University, Dr Labian moved on to practice in Cleveland, OH, Minneapolis, MN, and Princeton, NJ. She is happy to be back in home in Michigan! Dr. Labian brings with her over 20 years of pediatric experience and expertise in adolescent health and nutrition. She is the mother of three daughters and she enjoys the outdoors.

Staff Information

All of our nurses are fully trained pediatric specialists and can answer any of your questions. In addition, nurses can help you schedule your next appointment provide procedure authorizations and specialist referrals as needed.

Our certified biller can answer questions about insurance coverage and assist you in obtaining payment authorization from your provider.

Friendly and knowledgeable receptionists are available keep you and your child at ease during your visit. They have all the information required to ensure a quality visit and assist you with your billing.

Our Location

Find us on the map

Hours of Operation

Our Regular Schedule


8:00 am-12:00 pm

1:00 pm-5:00 pm


8:00 am-12:00 pm

1:00 pm-5:00 pm


8:00 am-12:00 pm

1:00 pm-5:00 pm


8:00 am-12:00 pm

1:00 pm-5:00 pm


8:00 am-12:00 pm

1:30 pm-5:00 pm


9:00 am-12:00 pm



What our patients say about us

  • "Both of my children were patients of TAPAC, and I can only say Very Good Things about all the services offered. Even when my kids were older, they chose to continue to see Dr. Sara Mulder through college, and I'm so grateful for her care of their physical, mental, and emotional needs during this time of growth. Thank you to all of you who make up the amazing team that is TAPAC."
    Carla W.
  • "I really appreciate the trouble they go through to keep the kids safe during this whole covid thing. Separate docs for healthy kids vs sick. Nice front desk staff. have a doc that specializes in asthma."
  • "We have had nothing but great experiences here at TAPAC. This practice is equipped with very knowledgeable clinical staff and very friendly administrative staff. Our son is comfortable here and loves seeing his primary Dr Koehler but has also had great experiences with Dr Stilwell and Dr Mulder."
    TRINH E.
  • "We couldn't be happier with Dr. Mulder. She always takes wonderful care of my kids. Listens to my concerns and never rushes us."
    Katie S.
  • "I was in the area on vacation with a sick kid. They were able to get me in the same day very quickly and help us out. They were very accommodating and helpful."
    Bryant E.