Leonard S Sender, MD
Office and Contact Information
CHOC Children's Specialists
1201 W. La Veta Ave.
Orange, CA 92868
phone: (714) 509-8636
fax: (714) 509-8699
map & directions
Physician / Researcher BioLeonard S. Sender, M.D. received his medical education in South Africa at the University of Witwatersrand in Johannesburg and completed his pediatrics internship and residency at the University of California, Irvine (UC Irvine) Medical Center in Orange. His pediatrics hematology/oncology subspecialty training included the Children's Hospital of Los Angeles (CHLA). Dr. Sender is board certified both in Pediatrics and Pediatric Hematology/Oncology. His professional interests are strongly centered on the diagnosis, treatment, and epidemiology of adolescent and young adult cancers (patients between the ages of 15 and 29). Dr. Sender is currently Medical Director of the Cancer Institute at Children's Hospital of Orange County (CHOC); Pediatric Subspecialty Faculty (PSF) Division Chief of Oncology; and Medical Director of Clinical Oncology Services at the UC Irvine Medical Center's Chao Family Comprehensive Cancer Center.
Resident in Pediatrics University of California, Irvine Medical Center,Orange, California
Pediatric Hematology/Oncology Including Hematopoietic Progenitor Cell Transplantation Children’s Hospital Los Angeles, Los Angeles, California
Department of Pediatrics University of California, Irvine Medical Center,Orange, California
- Chief Resident, Pediatrics
Chief Resident, Pediatrics University of California, Irvine Medical Center, Orange, California
- Medical School
Doctor of Medicine University of the Witwatersrand, Johannesburg,7 York Road, Parktown, 2193, South Africa
- Pediatric Hematology/Oncology, Hematology, Pediatrics
Honors and Awards
- Orange County Medical Association’s Physicians of Excellence 2010-2012
Master Campus Plan Update
Video that describes our recent upgrades to the hospital and talks about our plans for expanding the CHOC campus. Highlights include our new PICU and CVICU units, the new Ambulatory Care Center and Pr ...
Give Miracles: Frankie's Story
Frankie Mach, a 20-year-old mother of two found out she had cancer; just days after her daughter's cancer went into remission. As Fox LA's Al Naipo reports, Mach is taking part in a unique treatment p ...
Voices of the Young Adult Cancer Advocate Movement
In this video featuring Dr. Leonard Sender, Medical Director of the CHOC Children's Cancer Institute, young adult cancer survivors deliver the message that young adults do get cancer, and the ...
Clinical Trials - Dr. Leonard Sender
Dr. Sender, Medical Director, Hyundai Cancer Institute at CHOC Children's, describes for us the three phases of clinical trials. ...
Hyundai Donation - Hope on Wheels
Hope On Wheels and Hyundai Motor America presented the second installment of a $10 million commitment to CHOC Children’s to fund groundbreaking cancer research at the Hyundai Cancer Institute at CHOC ...
Hyundai Motor America Donation - CHOC Children's
Hope On Wheels and Hyundai Motor America presented the second installment worth $2 million and part of a $10 million commitment to CHOC Children’s to fund groundbreaking cancer research at the Hyundai ...
Hyundai Cancer Institute: Dr. Sender - No Place Like CHOC
Leonard Sender M.D., Medical Director of the Hyundai Cancer Institute at CHOC Children's, talks about the innovate treatments available at CHOC Children's. ...
Genomic Cancer Research: Dr. Sender - No Place Like CHOC
Leonard Sender M.D., Medical Director of the Hyundai Cancer Institute at CHOC Children's, talks about clinical trials for cancer patients. ...
CHOC Articles & Publications
|Genomic Cancer Research Comes to CHOC Children’s
Physician Connection: Winter 2012
The Hyundai Cancer Institute at CHOC Children’s has enrolled the first patients in a pilot study designed to determine the individual genome profile of a range of pediatric and young adult cancers i...
|Hyundai Gives $10 Million to Drive Customized Cancer Research
Change CHOC, Change the World Campaign Newsletter: Fall 2011
Construction of CHOC Children's new sevenstory hospital tower, designed to provide a flexible platform to serve this region now and into the future, stands more than 70 percent complete....
|National Children’s Study Underway in Orange County
Physician Connection: Summer 2010
University of California, Irvine, in partnership with CHOC Children’s, the Children and Families Commission of Orange County and the Orange County Health Care Agency, was selected to conduct the study...
|CHOC Children's Institutes
CHOC Children's Annual Report: FY 2010
The CHOC Children’s Institutes: Heart, Orthopaedic, and Cancer...
|Adolescent Oncology Unit Opens
Kid's Health (Archive): Summer 2009
"Adolescence is such an important and healthy stage of life. For teens and young adults whose lives have been derailed by cancer, we are trying to recreate and provide an environment in which they can...
|Adolescent Oncology Unit Opens
Physician Connection: Summer 2009
It's goodbye to jungle animals and pastel colors. The new Anaheim Ducks Wing on the CHOC Children's oncology unit is sporting a far more mature vibe....
|Hyundai donates $55,000 to CHOC Children?s Cancer Institute
Children Our Everything: February 2009
In November, Hyundai Motor America donated $55,000 to support programs in the CHOC Children?s Cancer Institute....
|Board Member Spotlight: Jerry Flannery
Children Our Everything: February 2009
?It?s all about the kids.? As a member of the CHOC Children?s Foundation board of directors, that?s how Jerry Flannery sums up his and Hyundai Motor America?s involvement with CHOC Children?s....
|Cancer Institute Overview
Making a Mark: October 2008
About 10,000 children under the age of 15 will be diagnosed with cancer this year, according to the American Cancer Society....
|Tom and Marilyn Braly Support CHOC Oncology Program
Making a Mark: October 2008
Tom and Marilyn later surprised Dr. Sender with a gift of $100,000 to support CHOC?s oncology program and have continued their generosity with two more gifts totaling $65,000 for the AYA program....
|Bridging the Adolescents and Young Adults Cancer Gap
CHOC Articles: August 2008
Article written by Dr. Leonard Sender for HealthNewsDigest.com....
|COG Selects CHOC For Phase I Studies
Physician Connection: Summer 2008
CHOC has been designated as a Phase I clinical trial facility by the Children's Oncology Group (COG), the nation's predominant clinical trials group for children and young adult patients with cancer. ...
|Better Planning for Life After Cancer
Kid's Health (Archive): Spring 2008
Thirty years ago, only 10 to 20 percent of children with cancer, all types combined, survived. Today, about 80 percent of all pediatric cancers are curable....
|Hyundai Raises Awareness for Pediatric Cancer Research
CHOC Children's Annual Report: 2008
Thanks to generous donations from partners like Hyundai Motor America, CHOC and other children?s hospitals across the nation can continue to make progress in the fight against cancer....
|Hugs from Shaun Foundation Honors Teen Shaun Tanner
Making a Mark: October 2007
Seventeen-year-old Shaun Tanner was the typical all-American boy. He attended high school in Huntington Beach, where he won numerous sports and inspirational awards and earned the nickname ?the Ta...
|Former CHOC Patient
10th Anniversary of
Kid's Health (Archive): Winter 2007
In the summer of 2006, former patient Danny Simon wanted to return to CHOC. He didn't need medical attention; he just wanted to celebrate and thank CHOC's medical team for saving his life a ...
|CHOC Oncology Adds Adolescent Wing
Physician Connection: Fall 2006
The CHOC Cancer Institute is adding a new $2.5 million, six-bed wing to the existing oncology unit to better accommodate the needs of adolescents with cancer....
|CHOC Children’s adopts new genome sequencing service
August 15, 2012
The service is part of a study to improve pediatric cancer treatment....
|Hyundai Cancer Institute at CHOC Children’s is First to Utilize Illumina’s RapidTrack Whole Genome Sequencing Service For Cancer Study
August 13, 2012
As part of a pilot study designed to advance personalized treatment for children and teens battling recurrent cancer, the Hyundai Cancer Institute at CHOC Children’s is the first organization to utili...
|CHOC Children's Gala, "Building Bigger Dreams," Lauds New Patient Care Tower
January 30, 2012
CHOC Children's held its fourth annual CHOC Cherishes Children gala on January 21st at the Island Hotel in Newport Beach....
|More than 80 CHOC Children's Doctors Named "Physicians of Excellence"
January 03, 2012
More than 80 CHOC Children's physicians, including specialists and pediatricians, are named "Physicians of Excellence" by the Orange County Medical Association....
|Leonard Sender, M.D., Medical Director of CHOC Children's Cancer Institute, Helps Launch Journal of Adolescent and Young Adult Oncology
March 17, 2011
Dr. Leonard Sender, Medical Director of the CHOC Children's Cancer Institute, is adding the role of Editor-in-Chief of a new journal to his Curriculum Vitae. The Journal of Adolescent and Young Adult...
|More than 60 CHOC Children’s Doctors Named “Physicians of Excellence”
January 04, 2011
More than 60 CHOC Children’s physicians, including specialists and pediatricians, are featured as "Physicians of Excellence" in the January 2011 issue of Orange Coast magazine. The "Physicians of Exc...
|More than 50 CHOC Children's Doctors Named "Physicians of Excellence"
January 04, 2010
The Orange County Medical Association names more than 50 CHOC doctors "Physicians of Excellence."...
|Adolescent and Young Adult Cancer Wing Opens at CHOC Children's Hospital
June 08, 2009
The wish of a teen cancer patient and the promise by his physician are being realized with the opening of the Adolescent and Young Adult (AYA) Cancer Wing at CHOC Children's Hospital...
Dr. Sender strives to give the best care anywhere. ...