About Us

MOASC is a California Non-Profit Mutual Benefit 501(c) 6 Corporation. MOASC was established by a group of oncologists to advance and protect the ability of cancer patients to obtain, and the ability of the oncology physicians to provide, optimal cancer care. The Board of Directors consists of volunteers that are responsible for governing the association. They are the fiduciaries who steer the organization towards a sustainable future by adopting sound, ethical, and legal governance and financial management policies, as well as by making sure the association has adequate resources to advance its mission.


Ashkan Lashkari, M.D.
Lawrence Piro, M.D.
Vice President
Joshua Mansour, M.D.
Kevin Chang, MD

Board of Directors

Edward Alexson, M.D.
Board of Directors
Mary Cianfrocca, D.O., MBA, FACP
Board of Directors
Warren Fong, M.D.
Immediate Past President
Nataliya Mar, M.D.
Board of Directors
Robert Moss, M.D.
Chairman of the Board
Anthony Nguyen, M.D.
Board of Directors
Stavroula “Stevie” Otis, M.D.
Board of Directors
Sumanta Kumar Pal, M.D., FASCO
Board of Directors
Ravi Patel, M.D.
Board of Directors
Vu Phan, M.D.
Board of Directors
Cary Presant, M.D.
Emeritus Chairman of the Board
Michael Schlutz, M.D.
Board of Directors
Kathy Seymour, OCN
Nurse Representative
Darcy Spicer, M.D.
Board of Directors
Sabina Wallach, M.D.
Board of Directors
Jason Zell, DO, MPH
Board of Directors, Fellows Coordinator



The staff at the Medical Oncology Association of Southern California has extensive experience in the medical field, providing a solid foundation on which the company has been able to grow and expand. Our goal is to meet the ever-changing needs of the medical practice community and preserve patient’s access to care, while enabling the physician to practice medicine in a financially sound a stable environment. We are here as your resource for questions concerning practice management, legislative issues, coding, billing, reimbursement and everything else in between.

Nichole A. East, CAE
Executive Director