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Office Building Hall

Our office will be CLOSING PERMANENTLY

effective June 1, 2024

We will continue to see scheduled patients until 5/31/24 (Friday).

Please call us (661)863-9988 for further details.

Thank you for your understanding during this difficult time.

Meet The Team

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Chrystina Castellon, MD

Dr. Castellon completed her MD from New York Medical College, followed by a residency in Internal Medicine where she became chief resident in 2018. Her passion for patient care led her to specialize in Hematology-Oncology, completing her fellowship in 2021 at Boston University and Rhode Island Hospital. Before joining us in August 2023, Dr. Castellon made significant contributions at The Oncology Institute of Hope and Innovation in Downey. Her California roots and strong affinity for warm weather drew her back after 14 years on the East Coast. With family in Los Angeles, she's excited to settle in California.

Elizabeth Leynes-Le, MD

Elizabeth Leynes-Le, MD

CEO/President

Erica Commaiani, RN

Erica Commaiani, RN

Oncology Nurse

Erica Caton

Erica Caton

Reception Clerk

Vu Phung, MBA, MHA

Vu Phung, MBA, MHA

Director of Operations

Linh Phung, RN

Linh Phung, RN

Oncology Nurse

Vanesa De Santiago

Vanesa De Santiago

Medical Assistant

Thomas Vu, RN

Thomas Vu, RN

Nursing Manager

Ana Rivera

Ana Rivera

Authorizations Clerk

Monserrat Guillen

Monserrat Guillen

Medical Assistant

Our Pharmacy Partner - Inovia Pharmacy

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Yasser Haykal, RPH

Pharmacist

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Amer Jawich, RPH

Pharmacist

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Alya Czar

Chemo Technician

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John Montoya

Chemo Technician

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