Oncologist and Hematologist | Concord, Vallejo, Brentwood, Walnut Creek, and Fairfield

An expert and compassionate physician, your MDSOG oncologist and hematologist counsels you about state-of-the-art treatments, focusing on whole person care.

Oncologists and Hematologists serving you with expertise and compassion


Elizabeth A. Odumakinde, MD

Elizabeth A. Odumakinde, MD

Elizabeth A. Odumakinde, MD

Born in Nigeria, Elizabeth A. Odumakinde, M.D. immigrated to California as a young woman. She performed her premedical course work at Diablo Valley College in Pleasant Hill, California and at the University of California, Berkeley. She received a Doctorate of Pharmacy from the School of Pharmacy at the University of California, San Francisco. Dr. Odumakinde later attended medical school at the University of California, Davis; she performed her internship and residency at the Veterans Administration Medical Center in Martinez, California. She served as a fellow in hematology and oncology at the University of California, Davis. Dr. Odumakinde was instrumental in establishing the Sutter Solano Cancer Center program, where she later served as Medical Director.


Beverly F. McLeod, MD

Beverly F. McLeod, MD

Beverly F. McLeod, MD

Beverly F. McLeod, M.D. received her medical degree from the University of California, San Francisco. She completed her internship at Highland General Hospital in Oakland, California, and her residency in internal medicine at the Veterans Administration Medical Center in Martinez, California. She completed a fellowship in hematology and oncology at the University of California, Davis Medical Center. Dr. McLeod worked as the Medical Director for the Adult Sickle Cell Program at Alta Bates-Herrick Hospital in Berkeley, California, for two years. 

Prior to joining Mount Diablo Solano Oncology Group, Dr. McLeod worked for over 14 years as a staff medical oncologist in the oncology department at Kaiser Permanente Medical Center in Martinez and Walnut Creek. While at Kaiser, she served on the Breast Cancer Task Force and on the Quality Peer Review Committee. She currently serves on the Institutional Review Committee for the John Muir Hospital located in Concord, and the Cancer Committee at Sutter Solano Cancer Center. 


Lesley C. Martin, MD

Lesley C. Martin, MD

Lesley C. Martin, MD

Lesley C. Martin, M.D. was raised in southern Ohio, but moved to California early in her college career. She obtained a master's degree in mathematics prior to attending medical school. She attended the Joint Medical Program of the University of California, Berkeley and the University of California, San Francisco, obtaining both a master's degree in health science and a medical degree. Her thesis involved describing the lived experience of women with cancer. Her internship, residency and fellowship were performed at the University of California, Davis Medical Center. She also served as Chief Resident for that training program.


Yelena Krupitskaya, MD

Yelena Krupitskaya, MD

Yelena Krupitskaya, MD

Originally from Saint Petersburg, Russia, Dr. Yelena Krupitskaya received her MD degree from the Albert Einstein School of Medicine in New York and completed both her internal medicine internship and residency training at Montefiore Medical Center, University hospital of Albert Einstein. She went on to complete her medical oncology and hematology fellowship at Stanford Medical Center where she also worked on designing clinical trials of novel therapies. Dr. Krupitskaya is a principal author of four publications and an abstract presented at the American Society of Clinical Oncology annual meeting. She also speaks fluent Russian and conversational Spanish.


MDSOG has physicians that are board-certified in internal medicine, hematology and medical oncology. Our physicians are members of the following organizations.

American Society of Clinical Oncology logo

American Society of Clinical Oncology logo

American Society of Hematology logo

American Society of Hematology logo

American Medical Association logo

American Medical Association logo

Eastern Coop Oncology Group logo

Eastern Coop Oncology Group logo

National Surgical Adjuvant Breast Project logo

National Surgical Adjuvant Breast Project logo

Alameda Contra Costa Medical Association logo

Alameda Contra Costa Medical Association logo



Call us to set up an appointment

(925) 674-2100 Concord 

(707) 551-3333 Vallejo 

mail@mdsogroup.com