To contact the Michael Hoefflin Foundation for Children’s Cancer, please call or email our office directly.

If you are a MHF Patient Family or social worker, please contact:
Lety Garcia or Anita Seibert.

If you are interested in volunteering, please email


Gillian Stone
Executive Director
Extension 3180

Shaunie LeBouef
Office Manager
Extension 3811

Lety Garcia
Patient Family Liaison
Extension 3812

Anita Seibert
Outreach Program Coordinator
Extension 3813

** Effective 7/19/2019:
26027 Huntington Lane, #F
Santa Clarita, CA 91355

Office Hours
Monday – Thursday
Closed on Fridays
9:00AM – 4:00 PM