Learn
Our center educates and supports those with bleeding and clotting disorders.
Advance
Find healthy treatment options and comprehensive care.
Discover
Our staff improves outcomes with groundbreaking research.
Connect
Find other families facing similar challenges.
HTC Clinic Update
Our clinic hours are 8 am to 4:30 pm Monday-Friday. Our clinic no longer requires masks for those who are healthy. Be aware that our building is now unlocked and open during business hours. Contact our front desk if you have any questions.
Latest News
Extended Dosing Interval of Emicizumab May Offer Comparable Protection for Hemophilia A Patients
Study Shows Hemlibra Safely Supports Joint Health in Children with Hemophilia A
Biomarin Plans to Sell Rights to Roctavian, FDA Approved Hemophilia A Gene Therapy
Trial Shows Once-Weekly Marstacimab Reduces Bleeding Rates for Hemophilia A and B Patients
Star Therapeutics Gains New Financing to Boost Investigational von Willebrand Disease Therapy
Study Finds Infection is Most Common Cause of Death in Acquired Hemophilia A
Upcoming Events
Dec 24-26: Clinic, Pharmacy, and Admin offices closed for Christmas Holiday
Jan 1: Clinic, Pharmacy, and Admin offices closed for New Year's Day
Jan 9-11: RMHBDA Education Weekend - Bozeman, MT
Jan 11: Hemophilia Alliance 2026 Medical Providers & Business Administrators Meeting - Newport Beach, CA
Jan 19: Clinic, Pharmacy, and Admin offices closed for Martin Luther King Jr. Day
Jan 21: Hemophilia Alliance 2026 Pharmacist CE Conference - Tampa, FL
Jan 24: NBDF Colorado - Rock Climbing Clinic
Jan 28: NBDF Colorado - Education Dinner
See our Events Page for links to details on upcoming events.
Learn about our Clinic
Connect with our Pharmacy
Discover How Research Helps
Contact Us
Contact Us
Clinic Office Hours
8 am to 4:30 pm Monday-Friday by appointment only.
Phone: Mon-Fri 8am-4:30 pm
Main Clinic: 303-724-0724
HTC Pharmacy
Mon-Fri 8:30 am-4:30 pm
Pharmacy: 303-724-0168
A Pharmacist is on-call after-hours.
After Hours
For pediatric and adult patients, call our main number at 303-724-0724 or 1-888-297-0724 and select the appropriate prompts that will direct you to the doctor on call. If there are any technical issues, the direct line for pediatric patients is 720-777-9981 and for adult patients 720-848-0000. Ask to have the Hematology/Oncology Fellow on call paged.
To reach the pharmacy after hours for emergency factor, call our pharmacy number at 303-724-0168 or toll free at 1-888-724-7427. This will connect to our on-call service with instructions on contacting our on-call pharmacist.
If our toll free numbers are not connecting, please contact us directly through the local "303" numbers. Thank you for your patience as we work though this issue.
Welcome to the Hemophilia and Thrombosis Center at the University of Colorado Anschutz Medical Campus. Our center has undergone a variety of transformations over the years and we moved to our current location in 2011.
Our affiliation with Children’s Hospital Colorado allows us to bring the best care and expertise to all who live with bleeding or clotting disorders, including those who have survived pediatric stroke.
We hope you are able to use this website as a tool to find answers and learn more about bleeding and clotting disorders. Our goal is to work with all our patients and their families to empower them with education and strategies to overcome the challenges
they may face.
Dr. Tyler Buckner
Director of the HTC