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Conditions & Advice
Parenting Tips and Advice
From bringing home a new baby to building trust with your teen, our pediatric experts share guidance to help you navigate the ups and downs of parenthood.
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Research & Innovation
It starts with a Q:
For the latest cutting-edge research, innovative collaborations and remarkable discoveries in child health, read stories from across all our areas of study in Q: Advances and Answers in Pediatric Health.
ParentSmart HealthlineTM
Caring pediatric nurses are available 24/7 to help answer your questions.
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Children’s Hospital Colorado
Anschutz Medical Campus
13123 East 16th Avenue
Aurora, CO 80045
Emergency and urgent care locations
In life-threatening emergencies, find the emergency room location nearest you. For non-life-threatening medical needs when your pediatrician is unavailable, visit one of our urgent care locations.
Urgent care locations (hours vary)
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All locations
See a listing of all our Children’s Hospital Colorado locations including inpatient, outpatient, therapy, surgery facilities and more.
Locations near you
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Celia Lenarz-Geisen, MD
Provider's location(s)
Location information is not available.
Insurance plans accepted
We participate with most major health insurance plans and national transplant networks.
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Get to know Celia Lenarz-Geisen, MD
Experience and background
Medical Education 2020
New York University School of Medicine
Residency 2023
University of Colorado School of Medicine
Meet other experts
Megan Louderman, PsyD
Patient ratings and reviews are not available Why?
Mayra Baca Holguin, PNP, MSN
Certified Pediatric Nurse Practitioner
Angela Drelles, CPNP-PC
Certified Pediatric Nurse Practitioner
Patient ratings and reviews are not available Why?
Katherine Huston, MD
Emergency Medicine - Pediatric, Pediatrics
Patient ratings and reviews are not available Why?
Julie Nelson, MD
Neurology - Pediatric, Neurology