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    Dr. Hamed Khosravi, MD

    Dr. Hamed Khosravi is a board certified Medical Oncologist and has been treating cancer patients for over 15 years. He founded Northern Virginia Hematology Oncology Associates in 2004 to provide cutting-edge cancer care to the residents of Prince William County. He is the recipient of numerous awards and has been recognized as TOP DOCTORS by Northern Virginia Magazine and Patient’s choice awards. He is currently chairman of the Department of Medicine and the Cancer Committee at Sentara Northern Virginia Medical Center, dedicated to improving cancer care in the community; and an active member of the medical staff at Prince William Hospital.

    He is a fellow of the American Society of Clinical Oncology and the American Society of Hematology.

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    Dr. Kang


    Dr. Kang received her medical degree from Seoul National University School of Medicine in Seoul, South Korea. She completed her internal medicine residency at Presbyterian Hospital of Dallas, Texas and has trained in hematology and oncology at Baylor College of Medicine in Houston, Texas. Dr. Kang is board certified by American Board of Internal Medicine and is board eligible in hematology and oncology. She is a member of the American Society of Clinical Oncology and the American Society of Hematology. Dr. Kang provides general medical oncology and hematology services.

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    Kelly DeWyer

    Nurse Practitioner

    Kelly received her Master’s in Nursing from Vanderbilt University in Nashville, TN and has been a nurse practitioner at Northern Virginia Hematology & Oncology Associates since 2015. Previously she worked in surgical oncology at Washington Hospital Center. She is a member of the American Nurses Association, Oncology Nursing Society, and Sigma Theta Tau International Honor Society in Nursing. She is passionate about diligent cancer screening, pain and symptom management, and patient empowerment.

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    Ronnie Owen, RN, BSN, OCN


    I’m a graduate of George Mason University’s school of nursing and am certified in Oncology. I have been taking care of hematology, cancer, and hospice patients in the community since 2005. I am a breast cancer survivor since 2002 and pink is my favorite color! I am passionate about giving high quality compassionate care.

    Email: Nurse@novahemonc.comcastbiz.net

    Phone: 703-491-5600

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    Helen Detuermann, RN


    I have worked with Oncology and Hematology patients since I first started nursing in 2009. I pride myself in being a compassionate advocate for my patients, and I enjoy having the privilege of being able to help them navigate through each step of their cancer journey. I have a passion for improving overall wellness through holistic medicine!

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    You will see me at the front desk. I am happy to assist you in any way I can!

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    Michelle Dickison

    Pharmacy Technician/Nursing Assistant

    Hi! My name is Michelle and I have worked for Northern Virginia Hematology Oncology Associates since 2011. I mix the drugs used to treat the patients in the infusion center. Other skills I have are starting IV’s, drawing blood, and assisting nurses by hanging IV medications. I have been passionate about health care since I was 16. I am also a CPR instructor and an EMT (Emergency Medical Technician). I enjoy helping others feel better! If you have any questions for me you can call or email me.

    Email: Nurse@novahemonc.comcastbiz.net

    Phone: (703) 491-5600

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    Melissa Villlatoro

    Medical Assistant

    Hello I’m Melissa!! I am a certified Medical Assistant. I love my job. I enjoy helping my patients every day. I am fluent in Spanish and English and I’m here to help you! Hablo español!

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    Romelia Hashida

    Medical Assistant

    I check in patients, get vital signs, and assist doctors with examinations. You will also see me in the infusion center giving shots, drawing blood, and starting IV’s. I am fluent in English and Spanish. In my spare time I like to spend time with my family and friends! The beauty of my job is I learn something new every day! Hablo español!

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    Brandy Wortham

    Medical Assistant

    I am a certified medical assistant and a certified phlebotomist. I have been in health care since 2010. I have a passion for helping people and I love making patients smile. You will see me in all three of our offices!

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    Ofelia Corpuz


    Hi, I am Ofelia and I do billing and work in the front office. I am happy to help you in any way I can. If I do not know the answer to your question then I will make it a priority to find the answer for you! I also speak Tagalog.

    Email: Billing@novahemoc.comcastbiz.net

    Phone: 703-491-5600

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    Full Time Phlebotomist

    We have a full time phlebotomist in our office that is experienced in difficult blood draws. We can send your labs and urine samples to your approved lab sites.