"Shannon C. O'Connor, M.D., is a medical oncologist with Suburban Hospital. She practices out of Maryland Oncology Hematology. Dr. O'Connor has expertise in hematology and medical oncology with a special focus in women's health, including breast cancer and gynecologic cancers. Dr. O'Connor earned her Master's Degree in Physiology at Georgetown University, followed by her medical degree from St. George's University School of Medicine. She completed a residency at Washington Hospital Center, as well as a fellowship in hematology and oncology. Dr. O'Connor is a member of the American Society of Clinical Oncology, the American Society of Hematology, the Montgomery County Medical Society and the American Medical Association. Selected Publications Catlett JP1, Williams SA, O'Connor SC, Krishnan J, Malkovska V. ""Primary lymphoma of bone: an institutional experience."" Leuk Lymphoma. 2008 Nov;49(11):2125-32. doi: 10.1080/10428190802404030.". Dr. O'connor is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Paget Disease of the Breast, Cervical Cancer, Neuroendocrine Carcinoma of the Cervix, and Breast Cancer.

. Dr. Handy is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Spinocerebellar Ataxia Type 12, Spinocerebellar Ataxia Type 15, Spinocerebellar Ataxia Type 8, and Spinocerebellar Ataxia Type 10.

Syed Mahmood is a Hematologist and a Hematologist Oncology provider in Rockville, Maryland. Dr. Mahmood is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Thrombocytopenia, RUNX1 Familial Platelet Disorder, Colorectal Cancer, and Lynch Syndrome.

Douglas Frankel is a primary care provider, practicing in Internal Medicine in Rockville, Maryland. Dr. Frankel is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are High Cholesterol, Papular Urticaria, Obesity, and Familial Combined Hyperlipidemia.

Amit Rajvanshi is a Family Medicine provider in Rockville, Maryland. Dr. Rajvanshi is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Vitamin D Deficiency, Seasonal Affective Disorder (SAD), Vitamin B12 Deficiency, and Muscle Spasms.

"George A. Sotos, M.D., is the chief of hematology and oncology at Suburban Hospital, as well as a member of Suburban's Cancer Committee and the coordinator of Multidisciplinary Cancer Conferences. Dr. Sotos is a partner of Maryland Oncology & Hematology in Rockville, Maryland. Dr. Sotos has expertise in medical oncology and hematology, as well as chemotherapy. Dr. Sotos earned his Master of Science in Physiology from Georgetown University, followed by his medical degree from the Medical College of Virginia. He completed a residency in internal medicine with University of Texas Southwestern Medical Center, followed by a fellowship in medical oncology with the National Cancer Institute of the National Institutes of Health. Dr. Sotos is a fellow of the American College of Physicians, as well as a member of the Montgomery County Medical Society, the Medical and Chirurgical Faculty of the State of Maryland, and the American Society of Clinical Oncology. He is also a member of the oncology specialty panel for Johns Hopkins Medicine's Formulary Management Committee and previously served as a member of Suburban Hospital's Medical Staff Executive Committee, Provider Quality Committee and Physician Advisory Board. Dr. Sotos has been named a Top Doctor by Washington Consumers' Checkbook and a Super Doctor by the Washington Post magazine. Castle Connolly has also named him a Top Doctor in the Washington, D.C., Baltimore and Washington-Baltimore areas. Dr. Sotos has contributed to numerous publications on medical oncology and hematology topics. Selected Publications Rotello, L, Albrant, D, Nossuli, K, Sotos, G, Samet, C, Rainey, T. ""Impact of a Hospital-Wide Pharmacy Implemented Weight-Based Dosing Protocol for Erythropoietin."" Chest, 124:4 (Suppl):182S (Abstract), 2003. Sotos, George A. ""Ars Brevis."" Journal of Clinical Oncology, 2013; 31:14; 1792-1794; http://jco.ascopubs.org/content/31/14/1792.full.pdf+html". Dr. Sotos is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Lung Cancer, Pleuropulmonary Blastoma, Multiple Myeloma, and Endometrial Cancer.

John Wallmark is a Hematologist Oncology provider in Rockville, Maryland. Dr. Wallmark is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Breast Cancer, Paget Disease of the Breast, Multiple Myeloma, and Colorectal Cancer.

Dr. James Xu received a bachelor of science in chemical engineering with a minor in mathematics from Brigham Young University and his medical degree from University of Minnesota. He completed his internal medicine residency at the Yale-New Haven Hospital of Yale University in New Haven, CT, and his hematology and medical oncology fellowship at the New York-Presbyterian Hospital of Columbia University in New York City. Because of his unique background in engineering and medicine, Dr. Xu was the recipient of the American Society of Clinical Oncology-Conquer Cancer Foundation Young Investigator Award in 2011 and Merit Award in 2012. Dr. Xu is a strong advocate of precision medicine and he is the first person to have proposed and preliminarily confirmed the feasibility of using deep sequencing technology to detect genetic mutation in rare cell samples such as circulating tumor cells from cancer patients’ peripheral blood. He has published in peer-reviewed journals in lung, breast, and pancreatic cancers. Dr. Xu is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Pulmonary Embolism, Deep Vein Thrombosis, Protein S Deficiency, and Congenital Antithrombin 3 Deficiency.

Dr. Collier is graduate from Georgetown University Medical School, Washington D.C. and he has been in practice since 2000 in Rockville, MD. Dr. Collier received advanced training in Gastroenterology and Endoscopic Ultrasound from prestigious organizations such as Georgetown University Hospital, Washington Veteran's Hospital and the National Institutes of Health. Dr. Collier's top priority is to advance the delivery of care for patients suffering from digestive health conditions. His goal is to provide high quality patient care, medical diagnosis and the most effective treatment. He is married with three children. For more information on Dr. Collier, visit CapitalDigestiveCare.com. Dr. Collier is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Irritable Bowel Syndrome (IBS), Indigestion, Gastroesophageal Reflux Disease (GERD), Portal Hypertension, and Gastrectomy.

Shahid Shamim is a primary care provider, practicing in Internal Medicine in Rockville, Maryland. Dr. Shamim is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are High Cholesterol, Vitamin D Deficiency, Hypothyroidism, and Obesity in Children.

Eric Pollack is a Gastroenterologist in North Bethesda, Maryland. Dr. Pollack is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Familial Adenomatous Polyposis, Diverticular Disease, and Indigestion.

Petek Donmez is a primary care provider, practicing in Internal Medicine in Rockville, Maryland. Dr. Donmez is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Hypertensive Heart Disease, Enlarged Liver, Cirrhosis, and Viral Pharyngitis.

Hooman Azmi is a primary care provider, practicing in Family Medicine in Rockville, Maryland. Dr. Azmi is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Anemia, Diabetic Hyperglycemic Hyperosmolar Syndrome, Parkinson's Disease, Thalamotomy, and Deep Brain Stimulation.

Gerti Tashko is an Endocrinologist in Rockville, Maryland. Dr. Tashko is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Abdominal Obesity Metabolic Syndrome, Type B Insulin Resistance Syndrome, Mitochondrial Complex V Deficiency, and Cytochrome C Oxidase Deficiency.

Ahmed Heshmat is an Addiction Medicine specialist and a Geriatrics provider in Rockville, Maryland. Dr. Heshmat is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are End-Stage Renal Disease (ESRD), Vitamin B12 Deficiency, Necrosis, and Vitamin D Deficiency. Dr. Heshmat is currently accepting new patients.

Deidra Woods is an Infectious Disease provider in Bethesda, Maryland. Dr. Woods is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Vitamin B12 Deficiency, Vitamin D Deficiency, Cellulitis, and Lymphangitis.

William Peterson is a Neurologist in Bethesda, Maryland. Dr. Peterson is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Vitamin B12 Deficiency, Seizures, Subacute Combined Degeneration, and Progressive Myoclonic Epilepsy.

Chitra Rajagopal is a Hematologist Oncology specialist and a Hematologist in Bethesda, Maryland. Dr. Rajagopal is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Paget Disease of the Breast, Angiosarcoma, Inflammatory Breast Cancer, and Breast Cancer. Dr. Rajagopal is currently accepting new patients.

Dr. Ralph V. Boccia is a hematologist affiliated with Sibley Memorial Hospital, Suburban Hospital, Shady Grove Adventist Hospital, Holy Cross Hospital and MedStar Georgetown University Hospital, where he is a clinical associate professor of medicine for the University, as well as the medical director of the International Oncology Network (ION) Clinical Research Program and the chairman of ION’s Medical Advisory Panel. He practices out of the Center for Cancer and Blood Disorders, of which he is the founder and medical director, located in Bethesda, Maryland and Germantown, Maryland. Dr. Boccia earned his medical degree from the Autonomous University of Guadalajara School of Medicine. He completed a residency in internal medicine at Kern Medical Center, followed by a fellowship in hematology, oncology and bone marrow transplant at the combined UCLA-Veterans Administration Program and The National Cancer Institute at the National Institutes of Health. Dr. Boccia is a member of the American College of Physicians, the American Society of Clinical Oncology, the American Society of Hematology and the American Society for Blood and Marrow Transplantation. Dr. Boccia has been listed as a Top Doctor by Washingtonian Magazine and Consumers’ Checkbook Magazine since 1992. He has also been recognized as a Super Doctor by The Washington Post Magazine and a Regional Top Doctor for Washington, D.C., Baltimore and Washington-Baltimore by Castle Connolly. Dr. Boccia has contributed to various articles with his research, published in journals such as Annals of Internal Medicine, Journal of Clinical Oncology and The Lancet. Recent News Articles and Media Coverage Bladder cancer trends in Montgomery and Prince George's counties: Welcome news - and 3 facts you need to know. NJ.com (08/16/2016) RCCA Expands to Maryland to Become One of the Nation's First Multi-State Oncology/Hematology Physician-Owned and -Operated Networks. OncLive (10/06/2015). Dr. Boccia is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Anemia, Multiple Myeloma, Thrombocytopenia, Adult Immune Thrombocytopenia, and Splenectomy.

Victor Priego is a Hematologist Oncology specialist and an Oncologist in Bethesda, Maryland. Dr. Priego is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Myelodysplastic Syndrome (MDS), Anemia, Hemangioma Thrombocytopenia Syndrome, Thrombocytopenia, and Splenectomy.