Adult & Pediatric

Cedars-Sinai Medical Center

Samuel Oschin Cancer Center

8700 Beverly Boulevard
PACT Building, 4th Floor
Los Angeles, California 90048
United States

Contact Information

Existing patients 310-423-4423
New patients 310-423-4423
Referrals 310-423-4423
Financial liason Patient ServiceL 323 866 8600, Patient Financial Service: 310 423 5071

Designations and Memberships

NCI Designated Comprehensive Cancer Center
1. National Cancer Institute (NCI) Designation 2. American College of Surgeons (ACS) Commission on Cancer (COC) Accreditation 3. Member of the American Society of Clinical Oncology (ASCO) 4. American Society for Radiation Oncology (ASTRO) 5. Partnership with Sarcoma Alliance

Sarcoma Faculty

Medical Director
Leo Mascarenhas Leo.Mascarenhas@cshs.org
Administrative Director
Lakshmi Damerla Lakshmi.Damerla@cshs.org
Surgical Oncologists 6
Orthopedic Oncologists 2
Radiologists 4
Interventional Radiologists 3
Sarcoma Pathologists 2
Physicians
Dr. Jason S. M. Ho, MD – Medical Director of the Sarcoma Program, specializing in orthopedic oncology and the treatment of sarcomas, including soft tissue and bone sarcomas.

Dr. Leo Mascarenhas, MD, MS – A pediatric oncologist specializing in sarcomas, particularly in pediatric populations. He is deeply involved in both clinical care and research.

Dr. Peter J. McKenna, MD – An orthopedic oncologist with expertise in the surgical management of musculoskeletal sarcomas.

Dr. Joshua Ellenhorn, MD, FACS – A surgical oncologist specializing in the treatment of soft tissue and bone sarcomas, particularly in complex and rare cases.

Dr. Daniel C. Allison, MD, FACS – An orthopedic oncologist specializing in musculoskeletal and soft tissue sarcomas, with a focus on surgical treatment.

Dr. John M. O'Keefe, MD – A radiation oncologist with expertise in radiation therapy for sarcoma patients, offering targeted treatments in combination with surgery and chemotherapy.

Dr. Armando E. Giuliano, MD – A surgical oncologist involved in advanced cancer treatments, particularly for soft tissue sarcomas and other solid tumors.

Dr. Earl W. Brien, MD – An orthopedic oncologist who specializes in bone sarcomas and soft tissue tumors. He is also the Surgical Director of the Sarcoma and Bone Tumor Program at Cedars-Sinai.

Sarcoma Information

New cases of sarcoma seen anually 76–100
Average number of sarcoma surgeries per year 1–25
Sarcoma clinical trials actively accruing patients in the past 12 months 6
Proton beam radiation therapy No
Dedicated institutional sarcoma registry No
Multi-disciplinary tumor board Yes

Services Offered

Telemedicine consultations No
Sarcoma patient advocacy group Yes
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