Medical Review Board

Trust and accuracy are important, especially during times of uncertainty. That’s why our content is reviewed by at least one of our Medical Review Board members, a highly qualified team of well-recognized doctors in various disciplines in and around oncology.

We have composed this board to ensure the safety and confidence of our community, alleviating concerns of validity and accuracy. Our board verifies that articles containing medical information reflect the latest in evidence-based research and health information.

In addition to ensuring content quality, the Medical Review Board members will also participate with our Community through various forums, including seminars, panel discussions, and designated Office Hours.

Medical Review Board

Meet our Medical Review Board experts

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Eric Zhou, PhD

Clinical Psychologist

Dr. Eric Zhou is an Assistant Professor of Psychiatry at Harvard Medical School. He has served as a staff psychologist at the Dana-Farber Cancer Institute and Boston Children’s Hospital for over 10 years. He completed his internship in Behavioral Medicine at the Warren Alpert Medical School of Brown University.

Dr. Zhou has expertise in helping cancer patients and survivors improve their quality of life, both during and following treatment. In particular, his interests are in the domain of sleep health. Dr. Zhou has been funded to conduct his research by the National Cancer Institute, American Cancer Society, Patient-Centered Outcomes Research Institute, among other organizations. This work has resulted in more than 80 peer-reviewed publications in journals such as JAMA Psychiatry and Cancer.

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Michael Guerrera, MD

Pediatric Oncologist

Dr. Michael F. Guerrera, M.D., currently acts as the Director of the Comprehensive Hemostasis and Thrombosis Program at Children’s National Hospital, where he has practiced for almost 10 years. Dr. Michael’s dedication to pediatrics after he completed his Pediatric residency at Connecticut Children’s Medical Center (University of Connecticut Program) and fellowship in Pediatric Hematology Oncology at Children’s National Medical Center.

Along with his commitment to the practice of medicine, Dr. Michael supports the medical community through education. Dr. Michael received a Certificate in Adult Education from the George Washington University School of Education and served as the Pediatric Hematology Oncology fellowship director for eight years, remaining involved in fellow education and research oversight.

With over 20 years of experience in hematology, bleeding and thrombotic disorders, Dr. Michael has earned many prestigious recognitions, including 2018 Physician of the Year from the National Hemophilia Foundation (NHF), Northern Virginia Magazine Top Doctor in 2020 and 2019, and Washingtonian Top Doctor for the past five years. Dr. Michael is thrilled to bring his expertise and dedication to the OneVillage team.

As an elected member of the Region III/MidAtlantic oversight committee for the CDC/HRSA Hemophilia Treatment Center Grants and an active member of the Institutional Review Board, Dr. Micheal brings important experience that informs his passion for joining out Medical Review Board team.

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Michelle Kirschner, RN, ANCP

Director, Cancer Survivorship Program

Michelle Kirschner has over 30 years of clinical experience as a Nurse Practitioner. She joined the University of Cancer Center Survivorship Program in April 2016 as the first dedicated survivorship provider and currently serves as Director of Program Development for Survivorship and Supportive Services. She cares for a diverse cancer population in the Consultative Survivorship Clinic. Michelle also assisted in creating a Neuro-Oncology Survivorship clinic and the Cancer Cognitive Clinic where she is part of the clinical team. Michelle is a member of the Cancer Related Cognitive Impairment Collaborative through the National Cancer Institute.

In her leadership role she collaborates with oncology and referral providers in the development of innovative systems to optimize delivery and ongoing quality improvement of survivorship care. Michelle is also responsible for championing survivorship research and education. She has advanced knowledge of use of patient reported outcomes, metrics, creating customized EPIC tools, Learning Health System concepts and use of implementation science clinical environments.

On the national level, Michelle serves in the core leadership for The Cancer Survivorship Provider Network (CSPN). This organization is the only survivorship focused organization linking both survivorship health care providers and researchers throughout the nation. She is the head of the education committee and organizes monthly educational speakers to foster the growth of survivorship as a specialized area of practice.

Michelle frequently speaks on topics such as addressing the global supportive care needs of cancer survivors along with building survivorship and supportive care services.

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Tori Croog, MD

Radiation Oncologist

Victoria J. Croog, M.D. currently works in the Department of Radiation Oncology at the Johns Hopkins Kimmel Cancer Center at Sibley Memorial Hospital, as well as a clinical associate in the Department of Radiation Oncology at The Johns Hopkins Hospital. Dr. Croog is board certified in radiation oncology by the American Board of Radiology.

Dr. Croog has expertise in breast cancer, gastrointestinal cancer, gynecologic cancer, brain cancer and tumors of the central nervous system. She earned her medical degree from Harvard Medical School and completed a residency in radiation oncology at Memorial Sloan-Kettering Cancer Center.

Dr. Croog is involved with several committees at Sibley Memorial Hospital, including the Medical Executive Committee, the IRB/Research Review Committee, the Cancer Committee and the Radiation Safety Committee. She is also a member of the American Society of Clinical Oncology and the American Society of Radiation Oncology.

Dr. Croog has been published in numerous peer-reviewed journals and has presented research at various conferences, such as the American Society of Clinical Oncology’s annual meeting.

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Timothy Brennan, MD

Director, Addiction Institute

Dr. Brennan is the Chief of Clinical Services for the Addiction Institute of Mount Sinai and oversees addiction services across all campuses of the Mount Sinai Health System. He is also the Director of the Fellowship in Addiction Medicine Program at the Icahn School of Medicine at Mount Sinai.

Dr. Brennan completed his Fellowship in Addiction Medicine at The Addiction Institute, a Fellowship in Medical Ethics at Harvard Medical School, a Residency in Pediatrics at New York Presbyterian Hospital / Weill Cornell Medical College and internship in Internal Medicine at Georgetown University Hospital. He received a BS in Foreign Service from Georgetown University, and a combined MD/MPH from Tulane University School of Medicine and School of Public Health and Tropical Medicine. Dr. Brennan is Board Certified in Pediatrics by the American Board of Pediatrics and Board Certified in Addiction Medicine by the American Board of Preventive Medicine.

Dr. Brennan has spoken at a variety of state and national levels about addiction policy issues, particularly as related to addiction education and addiction in young adults. He is the co-editor of Lippincott's "Essentials of Addiction Medicine", and was appointed by Governor Cuomo to serve on the Medical Review Board at the New York State Justice Center. Dr. Brennan is the Vice President for Medical and Academic Affairs at the American College of Academic Addiction Medicine and on the Board of Directors for the National Association for Children of Addiction.

Dr. Brennan has specific interest and expertise in addiction education for physicians, addiction pharmacotherapy, and national drug policy.

A frequent contributor in the media regarding addiction issues, Dr. Brennan has been featured in the New York Times, the Wall Street Journal, the PBS NewsHour, CBS News, Good Morning America, and NPR.