Stanislav Lazarev
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Stanislav Lazarev, MD

Radiation Oncology

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About Me

Stanislav (Stas) Lazarev, MD is an assistant professor in the Department of Radiation Oncology at Mount Sinai and New York Proton Center. Dr. Lazarev's clinical practice is focused on the personalized treatment of pediatric malignancies, tumors of the central nervous system, including primary and metastatic brain tumors, metastatic spine tumors, and leptomeningeal disease, as well as treatment of primary liver and thoracic tumors with proton beam therapy. His research interests include re-irradiation of brain tumors, proton cranio-spinal irradiation for leptomeningeal disease, and as well as the role of proton radiation therapy for pediatric tumors.  He is an active member of ASTRO, PTCOG, PROS/SIOP, PNOC, and Cure4Kids Initiative (The St. Jude International Outreach Program). He is a co-investigator in a number of prospective studies examining safety and efficacy of proton radiotherapy. He sees his patients at Mount Sinai Hospital and New York Proton Center. He is actively involved in mentoring and teaching trainees, especially residents and medication students. He is a recipient of the 2022 Association of Residents in Radiation Oncology (ARRO) Educator of the Year Award.

Dr. Lazarev graduated magna cum laude from University of California--Berkeley with a BA in Biochemistry and Molecular Biology, and received his medical degree from the University of Vermont College of Medicine where he also was inducted into the Alpha Omega Alpha National Honor Medical Society. He completed medicine internship at Highland Hospital in Oakland, California, and radiation oncology residency at the Icahn School of Medicine at Mount Sinai. He served as chief resident in the period 2018-2019. He has published numerous peer-reviewed papers on a broad range of oncological topics, and presented his work at national conferences.

Dr. Lazarev is fluent in English, Russian, Spanish, Portuguese, and proficient in French.

English, Russian, Portuguese, Spanish
ASSISTANT PROFESSOR | Radiation Oncology
Hospital Affiliations
  • Mount Sinai Queens
  • The Mount Sinai Hospital