Meet our Staff

All our physicians are certified by the Board of American Academy of Pediatrics

Jennifer Rousseau, M.D.

Dr Rousseau grew up in Michigan and earned her medical degree at the University of Nevada, Reno, and completed her residency at the University of Texas, Galveston.  Dr Rousseau won the 2017 Rising Star Award in Pediatrics. She is married and has two children and 2 dogs.

Stephen Sitrin, M.D.

Dr. Sitrin earned his Bachelor’s degree from Duke University and his medical degree from SUNY-Upstate.  He completed his training in pediatrics at the University of Wisconsin, Madison. He has been in pediatric practice since 2001.  Dr Sitrin has served as Vice President of the Department of Pediatrics for Unity Hospital.  He lives happily with his wife and twin daughters.  He enjoys hiking, skiing, cooking and reading.  The Sitrin family loves to travel and takes every opportunity to go to exciting new places!

Jennifer Benton, C.P.N.P.

Jennifer grew up in Nevada and has been living in the Twin Cities since 2001. She graduated from the University of Minnesota Twin Cities with both her Bachelor of Science in Nursing and Master of Science in nursing. She has worked in pediatrics for over ten years and has been a Certified Pediatric Nurse Practitioner for the last five years. Jennifer is married and has 3 children.

John Hollerud, M.D.

Dr Hollerud is a Minnesota native who went to the University of Minnesota Medical School and completed his pediatric residency at Children’s Hospital Medical Center of Akron. He has been  with Child and Teen Medical Center since 1983.  His special interests include ADHD, pediatric psychiatry, asthma, infantile colic and feeding problems.  He is a past Unity Pediatric Vice Chair and Chair and was a former member of the Mercy-Unity Foundation Board of Directors.  He currently serves as a member of the Mercy Mother Baby Center Leadership Committee, Children’s Health Network (CHN) Board of Directors, Children’s Health Network (CHN) Clinic Quality Subcommittee Chair and Children’s Professional Staff Executive Committee.  Dr Hollerud is married and has two children.

Molly Wirtz, N.P.

Molly is a native of central Wisconsin. She earned a Bachelor of Science degree from Concordia University Wisconsin in Rehabilitation Science, and Master of Science degree in Nursing from Boston College. She is certified as a Pediatric Nurse Practitioner in primary care through the Pediatric Nursing Certification Board. Molly has a special interest in adolescent medicine and sports medicine. She has previously worked as a nurse with complex care pediatric patients in the Boston area. In her free time Molly enjoys spending time with family and friends, running, baking, traveling, and going on walks with her dog.  

Kaylee M. Adams, DNP, APRN, NNP-BC, CPNP-PC, CLC

Kaylee has lived in Minnesota her entire life. She received her Bachelor of Science degree in Nursing from The College of St. Scholastica, her Doctor of Nursing Practice degree as a Neonatal Nurse Practitioner from Creighton University, and her post-graduate certificate as a Pediatric Nurse Practitioner from the University of Minnesota with an additional certificate in Disability Policy and Services. Kaylee has worked for 10 years in the Neonatal Intensive Care Unit both as a nurse and nurse practitioner. She is passionate about caring for babies, children with complex medical conditions, and neurodevelopment. She is also a Certified Lactation Counselor, with additional training in tethered oral tissues (TOTs). In her free time, Kaylee enjoys yoga, reading, being on the lake, and spending time with her husband and daughter.

Yi Catherine Chang, M.D.

Dr. Chang is a native of Oklahoma, completing a Bachelor’s of Science Degree at the University of Oklahoma and getting her Medical Degree at the University of Oklahoma Health Science Center. She moved to Minnesota to train in general pediatrics at The University of Minnesota. Her special interests include hematology, nephrology, and medical ethics. She is board certified in pediatrics and enjoys caring for children of all ages and looks forward to watching them and their families grow. She was named to Mpls/St. Paul Magazine’s Top Doctors Rising Stars List in 2015, 2016, and 2018. Dr. Chang is married and lives with her husband and three children. She enjoys reading, cooking and baking, going to the theatre and museums, and watching football.

Benjamin Williams, CPNP

Ben was born and raised in Minnesota. He earned his Bachelor of Science in Nursing at Gustavus Adolphus College and his Master of Science in Nursing at the University of Pennsylvania. He has worked in general pediatrics at Mayo Clinic and pediatric allergy/immunology at Nemours A.I. duPont. In his free time Ben enjoys canoeing, kayaking, and backpacking. 

Mental Health Providers:

Elena Geiger-Simpson DNP, APRN, CNP, PMHNP-BC Psychiatry

Areas of interest: Patients from 4 years-adults, anxiety, social anxiety, depression, school issues, ADHD, ASD, trauma, managing health-related behavior, complex medication regimens, Spanish speaking, immigrant population

Robert Van Siclen PhD LP, Child and Adolescent Psychologist

Areas of interest: Patients from 2 years-adults, psychological testing, ADHD, anxiety, depression, social anxiety, school issues, parent coaching, trauma, managing chronic pain, managing health-related behavior, obesity and/or body image issues. Dr. Van Siclen has been with CTMC for over 30 years.

Clinical focus: Psychological testing for ADHD

Robin McLeod, PhD, LP,  Licensed Psychologist

Areas of interest: Patients from 7-22 years of age, teens/emerging adults with depression, anxiety, peer conflicts, parent conflicts, quirky teens, social anxiety, school issues, autism screening, parent coaching, encopresis/enuresis, managing chronic pain, managing health-related behavior, obesity and/or body image issues.

Carolyn Sanchez Hulstrand, MSW, LGSW

Carolyn Sanchez Hulstrand, MSW, LGSW, is a Licensed Graduate Social Worker. Carolyn identifies as biracial, with roots in Mexico and Minnesota; she speaks Spanish fluently, and has provided much needed outreach to the Latinx community. Carolyn has experience working in grade schools supporting students and families with their social and emotional needs, especially during distance learning. She has worked closely with children with disabilities, giving her experience with autism, cognitive delays, ADHD and presentations of complex trauma.  

Carolyn received her Bachelor of Arts degree in English from Hamline University. During her graduate studies at the University of Minnesota, she interned with families who were facing challenges related to early childhood development. She also interned with a community-based program that offered rehabilitation services to adults experiencing severe mental illness. Carolyn believes that recovery is non-linear and looks different for each individual. Her method includes collaborating with clients to best achieve their recovery vision. Carolyn draws from a range of evidence-based interventions, including play therapy, mindfulness, psychoeducation and motivational interviewing. 

Dacia Oberhelman, M.A., Ph.D.

Dr. Dacia Oberhelman is Post-Doctoral Resident at Natalis Counseling and Psychology Solutions. She provides individual psychotherapy and psychological testing services for adolescents and adults at the Natalis University Avenue location both in person and via telehealth. Dacia also provides counseling and psychological testing at Child & Teen Medical Center, an established partnership with Natalis to increase access to behavioral health services in primary care settings for those ages 0-22.

Therapeutic Approach:
Dacia primarily uses a cognitive-behavioral therapy (CBT) and a humanistic approach. She uses evidenced-based approaches while also striving to be open, flexible, and validating. Dacia works to create a space where individuals can evaluate and understand their thoughts, emotions, and behaviors within the contexts of their life. In her work, she aims to emphasize the whole individual to not only understanding a person’s suffering but also their purpose, values, and strengths.
Outside of her clinical work, Dacia enjoys spending time with her family and friends, cooking, reading, and drinking iced coffee.