Rahel Yirga, MD
Internist
2833 Cleave Dr
Falls Church, VA 22042
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Availability last updated 12/11/2025
Rahel Yirga, MD
Internist
2833 Cleave Dr
Falls Church, VA 22042
Mrs. Jill Forbes, CNP
Internist
2620 Main Line Blvd
Alexandria, VA 22301
Mrs. Jill Forbes, CNP
Internist
700 W Broad St
Falls Church, VA 22046
Office Location(s): Aldie
Other languages spoken: Spanish (fluent)
Double board-certified pediatrician and internal medicine specialist David Rubio, M.D., F.A.A.P., has cared for patients in Northern Virginia for over two decades. He is part of the Virginia Pediatric Group team and sees patients at the practice’s location in Aldie, Virginia.
Dr. Rubio was born in Queens, New York, although he considers South Riding, Virginia, his hometown. He completed a six-year biomedical program with Union College in Schenectady, New York, earning a Bachelor of Science in 1987. He completed his medical degree in 1989 at Albany Medical College, also in New York. He then went on to complete his internal medicine/pediatrics residency training in 1993 at the North Shore University Hospital/Cornell University Medical Center in New York.
Upon residency completion, Dr. Rubio joined the Northern Virginia Primary Care Associates in Annandale until 2008, when he developed and managed his own private pediatrics practice in South Riding. He was board certified by the American Board of Internal Medicine in 1994 and recertified in 2003. Dr. Rubio was also board certified by the American Board of Pediatrics in 1994 and recertified in 2016.
In 2016, Dr. Rubio and his practice joined the Virginia Pediatric Group. He feels it is wonderful to watch the children he's cared for over the years grow and develop. The personal relationships made with families have been extremely rewarding, and he looks forward to doing the same for many years to come.
Dr. Rubio is fluent in Spanish and resides in South Riding with his wife and three children. In his free time, he enjoys sports and music.
Patient Reviews
“Dr. Rubio is the best! We've been with him since before he joined Virginia Pediatrics, and is the only reason we stay with that group. He's patient and answers all of our questions. Always feel better after talking to him about any concerns we may have. The kids really like him too!”
- Karla D.
“Been with Dr. Rubio for over 10 years. He is patient, listens, is understanding, is not forceful with medical advice. Helps you to understand. We have always felt and still feel comfortable with him and his staff.”
- Estelle K.
“Dr. Rubio is an amazing pediatrician. Highly recommended.”
- Victor G.
“Dr. Rubio is the best, super friendly. He didn't rush (like many other places) and he was thorough. Definitely recommend.”
- Kishore K.
Dr. David Rubio, MD
Pediatrician
24560 Southpoint Drive
Suite 150
Aldie, VA 20105
Dr. Seema Chaudhary is a preventive medicine expert and obesity physician at Nova Physician Wellness Center. As a health advocate for the people of Fairfax, Sterling, Woodbridge and Ashburn, Virginia, she has been in clinical practice for about 15 years.
She finished her residency from the University of Florida, Gainesville, and she joined Community Health Center Clearwater so that she could help the poor and underserved population. She moved from Florida to Northern Virginia and worked with Kaiser Permanente for about seven years.
During her tenure at Kaiser, she became more passionate about preventive medicine, especially treating obesity, which is the root cause of most chronic medical illnesses, like diabetes, hypertension, high cholesterol, sleep apnea, heartburn, and arthritis.
Seeing the growing need for weight management expertise, she switched her area of specialty to bariatric medicine. She is now a board-certified obesity medicine specialist and helps patients achieve their healthiest weight, wellness, and a reversal of cardiovascular risk factors.
As a primary care physician, Dr. Chaudhary understands the complexity of chronic medical illness associated with abnormal weight gain. She is comfortable and confident with the treatment of obesity, while also monitoring all associated diseases.
Dr. Chaudhary works closely with her patients and collaborates with primary care physicians to help her patients live happy, healthier lives.
Dr. Seema Chaudhary, MD
Internist
24430 Stone Springs Blvd
Suite 230
Sterling, VA 20166
Ali Rahimian, MD
Internist
8230 Old Courthouse Rd
310
Vienna, VA 22182
Dr. Seema Chaudhary is a preventive medicine expert and obesity physician at Nova Physician Wellness Center. As a health advocate for the people of Fairfax, Sterling, Woodbridge and Ashburn, Virginia, she has been in clinical practice for about 15 years.
She finished her residency from the University of Florida, Gainesville, and she joined Community Health Center Clearwater so that she could help the poor and underserved population. She moved from Florida to Northern Virginia and worked with Kaiser Permanente for about seven years.
During her tenure at Kaiser, she became more passionate about preventive medicine, especially treating obesity, which is the root cause of most chronic medical illnesses, like diabetes, hypertension, high cholesterol, sleep apnea, heartburn, and arthritis.
Seeing the growing need for weight management expertise, she switched her area of specialty to bariatric medicine. She is now a board-certified obesity medicine specialist and helps patients achieve their healthiest weight, wellness, and a reversal of cardiovascular risk factors.
As a primary care physician, Dr. Chaudhary understands the complexity of chronic medical illness associated with abnormal weight gain. She is comfortable and confident with the treatment of obesity, while also monitoring all associated diseases.
Dr. Chaudhary works closely with her patients and collaborates with primary care physicians to help her patients live happy, healthier lives.
Dr. Seema Chaudhary, MD
Internist
8130 Boone Boulevard
Suite 110
Vienna, VA 22182
At McLean Cardiology, we believe that exceptional cardiovascular and internal care begins with a deep understanding of each patient's unique health journey. Led by Dr. Afsane Haddad, a board-certified cardiologist with over 25 years of experience in the Washington, D.C. metropolitan area, our practice offers personalized cardiology services tailored to your individual needs.
Our experienced staff is dedicated to providing seamless support from the moment you walk through our doors, ensuring a smooth, stress-free experience in a calm, professional, and comfortable setting.
At McLean Cardiology, we recognize that your heart is not an isolated organ. We take a comprehensive approach to your health, considering all aspects of your well-being to achieve the best possible outcomes. Our goal is to be your trusted partner in navigating complex cardiac and internal health issues, providing you with the highest standard of care.
Dr. Afsane Haddad is a board-certified cardiologist with a longstanding reputation for clinical excellence and compassionate, patient-focused care. With over two decades of experience in the Washington, D.C. area, she brings a wealth of expertise to her patients and is dedicated to prevention, early detection, and individualized treatment plans.
Dr. Haddad is dedicated to providing compassionate care that addresses both the heart and the whole person.
Education
Board Certification
Affiliations
To deliver the highest standard of care, McLean Cardiology operates as a concierge medical practice, providing proactive and personalized health management. Our Concierge Comprehensive Care Services (CCCS)give patients with priority access to Dr. Haddad, extended appointment times, and advanced preventive screenings typically not covered by insurance. Patients benefit from early detection of health issues, same-day or next-day appointments when needed, and ongoing coordination with other healthcare providers. CCCS is ideal for those seeking more time, more attention, and a more personalized approach to their overall wellness.
To meet different needs and lifestyles, CCCS offers several membership packages.These include focused cardiology care, comprehensive primary + cardiology options, as well as other care packages. No matter which package you choose, you receive a level of attention and access that goes beyond traditional healthcare.
Dr. Afsane Haddad-Mashad, MD
Internist
8230 Boone Blvd
Suite 203
Vienna, VA 22182
Mrs. Jill Forbes, CNP
Internist
900 N. Taylor St.
Arlington, VA 22203
W. Colin Gallahan, MD is a board-certified Gastroenterologist at Richmond Gastroenterology Associates. Dr. Gallahan sees patients at the Midlothian Center office in Chesterfield, Virginia.
He received his undergraduate degree and medical degree from the University of Virginia (UVA). After graduating from medical school, Dr. Gallahan completed his internship and residency in internal medicine at Duke University Medical Center. He completed his fellowship in gastroenterology at Wake Forest University Baptist Medical Center (WFU).
After completing his GI fellowship, he was selected to stay on at WFU to complete an additional year of specialty training in Advanced Endoscopy, with a primary focus on endoscopic ultrasound (EUS). He was fortunate to train with instructors who are nationally recognized experts in Advanced Endoscopy.
Because of his advanced training in endoscopic ultrasound, Dr. Gallahan has a special interest in diagnosing and staging GI cancers and managing pancreas diseases. He also cares for patients with a variety of GI disorders, including inflammatory bowel disease, acid reflux, swallowing disorders, liver disease, and biliary and gallbladder disorders.
Dr. Gallahan is a strong advocate for colon cancer screening. He is skilled in performing endoscopic ultrasound (EUS), colonoscopy, colon polyp removal, upper endoscopy, and ERCP.
He is a member of the American College of Gastroenterology (ACG), the American Society for Gastrointestinal Endoscopy (ASGE), and the American Gastroenterological Association (AGA). He also serves the community as a member of the Richmond Academy of Medicine (RAM).
“Taking care of patients is a great privilege and responsibility. I always try to be as thorough as possible, and my goal is to communicate openly and honestly with my patients. I believe patients will ultimately do better if they understand their illness and treatment plan.”
Dr. Gallahan grew up in the Northern Neck of Virginia. He attended Woodberry Forest School before his time in Charlottesville. Dr. Gallahan is married to a native Richmonder and has three children. He and his family regularly attend Hope Church.
Dr. Gallahan is a huge fan of all sports and avidly follows the Washington Commanders and UVA athletics. He enjoys coaching his children’s sports teams and likes to sneak away to the golf course whenever he can.
Dr. William Gallahan, MD
Internist
1600 Wilkes Ridge Drive
Suite 100
Henrico, VA 23233
Sachit Sharma, MD, is a board-certified gastroenterologist and hepatologist at Richmond Gastroenterology Associates in Richmond, Virginia. Dr. Sharma sees patients at the Midlothian office in N. Chesterfield, Virginia.
Dr. Sharma's medical career began with an MBBS degree from Manipal College of Medical Sciences in Nepal, where he graduated with honors in 2013, supported by a full scholarship from the Ministry of Education and Sports of the Government of Nepal. His clinical acumen was further honed during his Internal Medicine Residency at John H. Stroger Jr. Hospital of Cook County in Chicago, IL, followed by a tenure as Chief Resident at the University of Toledo, OH. Dr. Sharma then worked as a Hospitalist at Promedica Toledo Hospital before completing his Fellowship in Gastroenterology, Hepatology, and Nutrition at Virginia Commonwealth University in July 2024.
His contributions to the field are substantial, with numerous peer-reviewed publications that address diverse topics such as the efficacy of endoscopic techniques, prognostic markers for hepatocellular carcinoma, and the impact of various interventions on gastrointestinal outcomes. Noteworthy publications include systematic reviews and meta-analyses on endoscopic treatments and prognostic factors, reflecting his expertise and ongoing research efforts.
Dr. Sharma's professional affiliations include memberships in the American College of Gastroenterology (ACG), the American Society for Gastrointestinal Endoscopy (ASGE), and the American Gastroenterological Association (AGA). His commitment to the field is also evidenced by his ABIM Board Certification in Internal Medicine and his active involvement in various national and international medical societies.
Fluent in English, Nepali, Hindi, and Urdu, he brings a diverse linguistic and cultural perspective to his practice. Dr. Sharma's dedication to both clinical excellence and research makes him a valuable asset to the gastroenterology community, continuously working towards improving patient outcomes and advancing medical knowledge.
Dr. Sharma resides in the suburbs of Richmond, VA with his family.
Dr. Sachit Sharma, MD
Gastroenterologist
1600 Wilkes Ridge Drive
Suite 100
Henrico, VA 23233
Drew Simmelink, MD, is a board-certified Gastroenterologist at Richmond Gastroenterology Associates. Dr. Simmelink sees patients primarily at the practice’s Hanover office in Mechanicsville, Virginia, but also takes appointments at the West Creek office in Henrico.
Dr. Simmelink received his Bachelor of Science Honors Program degree in Biochemistry and Molecular Biology at the University of Richmond (U of R) in Virginia, achieving Dean’s Honor List all four years of his undergraduate career. He went to Eastern Virginia Medical School (EVMS) to earn his medical doctorate, receiving honors marks in internal medicine training.
Dr. Simmelink completed his internship and residency in internal medicine at Carolinas Medical Center (CMC) in Charlotte, North Carolina, where he was selected to stay for his three-year Fellowship in Gastroenterology and Hepatology.
During the fellowship, Dr. Simmelink gained extensive experience managing complex liver and inflammatory bowel diseases through the CMC liver transplant and inflammatory bowel disease programs. Additionally, he gained insightful experience in motility issues, earning certification from the American Neurogastroenterology and Motility Society (ANMS).
While in his internal medicine residency and gastroenterology fellowship, Dr. Simmelink exhibited an interest in improving patient safety. He also championed increasing population-wide colorectal cancer and hepatitis-C screening rates through quality improvement projects.
Dr. Simmelink is clinically interested in managing a wide variety of digestive diseases, including, but not limited to, inflammatory bowel disease and immune-mediated bowel disorders, Crohn’s disease, ulcerative colitis, Celiac disease, medication-induced conditions, liver disease (alcohol and obesity-induced liver disease), Wilson’s disease, autoimmune hepatitis, hemochromatosis, viral hepatitis, disorders of the gut-brain interaction, IBS, dyspepsia, heartburn and GERD, peptic ulcer disease, constipation, diarrhea, and Barrett’s esophagus.
He is skilled in many GI procedures, including upper endoscopy (EGD), esophageal dilation, Barrett’s esophagus ablation & management, colonoscopy, colorectal cancer screening, colon polyp removal, endoscopic mucosal resection (EMR), endoscopic management of inflammatory bowel disease, enteral access (PEG tube placement), and video capsule endoscopy.
He is a member of the American Society for Gastrointestinal Endoscopy (ASGE), the American Gastroenterological Association (AGA), the American College of Gastroenterology (ACG), and the American College of Physicians (ACP).
Serving his community has always been an integral part of his life, exemplified in achieving the rank of Eagle Scout in the Boy Scouts of America, joining the Alpha Phi Omega national service fraternity in college, to helping out with local support groups for Huntington’s disease and aiding underserved patients through Beyond Clinic Walls during his medical school career.
In his spare time, Dr. Simmelink enjoys landscaping and remodeling homes, playing the piano, enjoying water sports, including swimming & kayaking, experimenting with new recipes from different cultures, and mastering the grill.
Dr. Andrew Simmelink
Gastroenterologist
1600 Wilkes Ridge Drive
Suite 100
Henrico, VA 23233
Mrs. Jill Forbes, CNP
Internist
3821 Wilson Boulevard
Arlington, VA 22203
Hooman Saberinia, MD
Internist
1715 N George Mason Drive
Suite 408
Arlington, VA 22205
Mrs. Jill Forbes, CNP
Internist
11501 Sunrise Valley Drive
Reston, VA 20191
Albert Valente, DO
Internist
3970 Springfield Rd
Glen Allen, VA 23060
Tarique Zahir, MD, is an internal medicine physician at Prosperity Internal Medicine in Reston, Virginia. Dr. Zahir is proud to deliver exceptional medical care to adults, working closely with them to improve their health and quality of life.
Dr. Zahir was born and raised in Beckley, West Virginia. He earned his undergraduate degree from Wake Forest University in Winston-Salem, North Carolina. He then went on to pursue his medical education at the Marshall University Joan C. Edwards School of Medicine in Huntington, West Virginia.
After completing his formal education, Dr. Zahir received internship training from Case Western Reserve University/MetroHealth Medical Center in Cleveland, Ohio. Since practicing internal medicine, he was recognized for being a “Top Doctor” by Northern Virginia Magazine for four years, from 2018-2021. He was also honored with the Washingtonian “Top Doctors Award” for eight years in a row, starting in 2016 through 2023.
At Prosperity Internal Medicine, Dr. Zahir looks forward to meeting you and learning more about your health needs. He aims to ensure your experience is positive and helps you achieve your health goals.
Dr. Tarique Zahir, MD
Internist
11107 Sunset Hills Road
Reston, VA 20190
Taseen Mir, MD, is a family medicine physician at Prosperity Internal Medicine in Reston, Virginia. Dr. Mir is passionate about helping you and your loved ones stay healthy at all times, and partners with you to find the best care plans.
Dr. Mir obtained her bachelor’s degree in psychology from Michigan State University in Lansing, Michigan. She then went on to complete her medical education at St. Matthew’s University School of Medicine in Cambridge, England. After obtaining her doctorate in medicine, she pursued residency training in family medicine at Wayne State University School of Medicine in Detroit, Michigan.
During her time as a physician, she was awarded the “Claire Knighten-Ward Award” for her humanism and excellence. She was also honored by Northern Virginia Magazine and the Washingtonian with a “Top Doctors Award.”
At Prosperity Internal Medicine, Dr. Mir specializes in general practice, as well as allergy treatment and women’s health. She has been practicing family medicine for over fifteen years, and is committed to excellent health outcomes.
Dr. Taseen Mir, MD
Family Physician
11107 Sunset Hills Road
Reston, VA 20190