Contact Us

To schedule an appointment for:

  • Patients who have NOT been seen at the Hemostasis and Thrombosis Center:
    Call: 323-361-4100

  • Returning patients:
    Call: 323-361-4151

If you have a question for your physician, nurse, physician assistant, social worker or psychologist:
Call: 323-361-4141

For general questions:
Call: 323-361-4141
Email: HTCinfo@chla.usc.edu

Night or weekend questions:
Call: 323-660-2450
Ask for the Hematologist on call.


Hemophilia and Thrombosis Clinic

4650 Sunset Blvd. MS# 54
Los Angeles, CA 90027
Located on the 5th Floor of the Outpatient Tower at Children’s Hospital Los Angeles.


Hemophilia Clinic

Tuesday, 9 a.m. – 12 p.m.; 1 p.m. – 4:30 p.m.

Thursday, 1 p.m. – 4:30 p.m.


Thrombosis Clinic

Thursday, 1 p.m. – 4:30 p.m.


Hemophilia Orthopaedic Clinic

Located on the 4th Floor of the Outpatient Tower

2nd Tuesday in the months of February, April, June, August, October and December
1 p.m. – 4 p.m.

Need a referral from a Hemostasis and Thrombosis Center physician to attend this clinic.

For all patients, please arrive 1 hour before your appointment and bring your insurance card.