Ali Rahimian is a primary care provider, practicing in Family Medicine in Vienna, Virginia. Dr. Rahimian is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Type 2 Diabetes (T2D).

Christopher O'connor is a Cardiologist in Falls Church, Virginia. Dr. O'connor is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Heart Failure, Cardiogenic Shock, Heart Failure with Preserved Ejection Fraction (HFpEF), Heart Bypass Surgery, and Percutaneous Coronary Intervention (PCI).

Fred Taweel is a primary care provider, practicing in Internal Medicine in Reston, Virginia. Dr. Taweel is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are High Cholesterol, Striatonigral Degeneration Infantile, Vertigo, and Nasal Polyps. Dr. Taweel is currently accepting new patients.

Dennis Sager is a primary care provider, practicing in Internal Medicine in Reston, Virginia. Dr. Sager is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Glossitis, Pernicious Anemia, Chronic Cough, and Lewy Body Dementia (LBD).

Shruti Tiwari is a Hematologist Oncology specialist and a Hematologist in Reston, Virginia. Dr. Tiwari is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Breast Cancer, HER-2 Positive Breast Cancer, Paget Disease of the Breast, and Intraductal Papilloma. Dr. Tiwari is currently accepting new patients.

Ravneet Grewal is a Hematologist and an Oncologist in Reston, Virginia. Dr. Grewal is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Deep Vein Thrombosis, Pulmonary Embolism, Gastric Lymphoma, and Waldenstrom Macroglobulinemia. Dr. Grewal is currently accepting new patients.

Sharon Freeman is a Nurse Practitioner in Reston, Virginia. Ms. Freeman is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Myeloproliferative Neoplasms (MPN), Febrile Neutropenia, Vitamin B12 Deficiency, and Smoldering Multiple Myeloma. Ms. Freeman is currently accepting new patients.

Kevin Diasti is a Hematologist Oncology specialist and a Hematologist in Reston, Virginia. Dr. Diasti is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are HER-2 Positive Breast Cancer, Triple-Negative Breast Cancer, Iron Deficiency Anemia, and Paget Disease of the Breast. Dr. Diasti is currently accepting new patients.

Mei-hwa Firestone is a Hematologist Oncology specialist and a Hematologist in Reston, Virginia. Dr. Firestone has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Paget Disease of the Breast, Breast Cancer, Pleuropulmonary Blastoma, and Lung Cancer. Dr. Firestone is currently accepting new patients.

Rajiv Aggarwal is a primary care provider, practicing in Family Medicine in Reston, Virginia. Dr. Aggarwal is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are High Cholesterol, Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Thrombectomy. Dr. Aggarwal is currently accepting new patients.

Julie Littlejohn is a Nurse Practitioner in Reston, Virginia. Ms. Littlejohn is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Opioid Induced Constipation, Smoldering Multiple Myeloma, Febrile Neutropenia, and Pediatric Low-Grade Glioma (pLGG). Ms. Littlejohn is currently accepting new patients.

Gauthami Gondy is a primary care provider, practicing in Internal Medicine in Ashburn,, Virginia. Dr. Gondy is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and High Cholesterol.

"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.

Christopher Duke, MD is a second-generation physician and native Washingtonian. His parents practiced medicine in Washington for four decades. Chris has practiced internal medicine here for 30 years. He attended George Washington University for his undergraduate and medical degrees. He completed Internal Medicine training at Penn State University. Chris practices evidence-based medicine while emphasizing empathy for his patients and their families. He personally knows and refers patients to the many outstanding specialists in Washington. He is excited to team with his patients to optimize their health and enjoyment of life. He has taught medical students at George Washington as an associate professor of medicine. He has been recognized by Washingtonian Magazine as a “Top Doctor” including in 2022. Outside of work, he enjoys traveling with wife Lilian and children Jacqueline and James. He loves attending Notre Dame football games and spoiling his pugs- Mini and Rockne! LinkedIn https://www.linkedin.com/in/christopher-duke-md-1126314. Dr. Duke is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Rabson-Mendenhall Syndrome, Vitamin B12 Deficiency, Subacute Combined Degeneration, and Cellulitis.

Pranitha Naini is an Oncologist and a Hematologist in Potomac Falls, Virginia. Dr. Naini 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, Pulmonary Embolism, Lung Cancer, and Pleuropulmonary Blastoma. Dr. Naini is currently accepting new patients.

Benson Yu is a primary care provider, practicing in Geriatrics and Internal Medicine in Fairfax, Virginia. Dr. Yu is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Vitamin B12 Deficiency, Postmenopausal Osteoporosis, Osteoporosis, and Familial Combined Hyperlipidemia. Dr. Yu is currently accepting new patients.

Sree Gogineni is a Bariatric Medicine specialist and a Public Health and Preventive Medicine provider in Vienna, Virginia. Dr. Gogineni is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Obesity in Children, Hypertension, Obesity, and Vitamin D Deficiency. Dr. Gogineni is currently accepting new patients.

Robert Reid is a Hematologist and an Oncologist in Fairfax, Virginia. Dr. Reid 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, Breast Cancer, Hormone Replacement Therapy (HRT), and Salpingo-Oophorectomy.

Naveen Doki is a Hematologist Oncology specialist and a Hematologist in Fairfax, Virginia. Dr. Doki is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Vitamin B12 Deficiency, Iron Deficiency Anemia, Homocystinuria, and Childhood Iron Deficiency Anemia. Dr. Doki is currently accepting new patients.

Nicole Thomas is a Rheumatologist in Fairfax, Virginia. Dr. Thomas has been practicing medicine for over 18 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Osteoporosis, Postmenopausal Osteoporosis, Rheumatoid Arthritis (RA), and Ankylosing Spondylitis.