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Dr. Rai is considered a national thought leader and expert in the field of Gastroenterology and liver disease. He was named a Baltimore Magazine top doctor in 2016, 2017 and 2019, 2021, 2022 and a Washingtonian Magazine top doctor in 2018 and 2020.

Dr. Rai currently serves as the medical director at the gastro center of Maryland. He has served on the medical faculty at Johns Hopkins University in the division of Gastroenterology & Hepatology for more than 12 years, where he served as Medical Director of adult liver transplantation. He is a Board-Certified Gastroenterologist & Hepatologist, with over 22 years of experience. He completed his Gastroenterology & Hepatology Fellowship at Johns Hopkins University in 1996 and completed an additional year of Advanced Fellowship at Johns Hopkins University.

Dr. Rai presents regularly at national and regional meetings and has received many awards including Excellence in Clinical Research Award from the American College of Gastroenterology, Passano Clinician Scientist Award from Johns Hopkins University, Industry Research Scholar Award & Astra-Merck Award from the American Digestive Health Foundation, among others. He has published dozens of scholarly articles in peer reviewed journals and authored many chapters for medical textbooks. He has performed over 100,000 procedures in this field and pioneered new and innovative medical techniques.

Josh Rosenbloom, DO, is a board-certified gastroenterologist and hepatologist at the Gastro Center of Maryland in Columbia, Lutherville, and Annapolis, Maryland. He is committed to providing his patients with the best possible personalized care in a calming and professional environment.

Dr. Rosenbloom received his medical degree from Des Moines University. After graduating, he continued his medical education at the St. John Providence health system through Michigan State University, completing a residency in internal medicine and a fellowship in gastroenterology. He also participated in published research studies on nutrition, weight loss, hepatitis C, and improving colonoscopy preparation.

Dr. Rosenbloom specializes in endoscopy , including colorectal cancer screenings, weight loss assistance, pain and symptom management, and nutrition. Given his interests in these areas , he has taken a special focus on performing both Orbera and Spatz bariatric balloon insertions

Approaching his 5th year at Gastro Center of Maryland, Dr. Rosenbloom is experienced in treating a wide array of gastrointestinal, liver, and pancreatic diseases. He most frequently treats GERD, irritable bowel syndrome (IBS), ulcerative colitis, Crohn’s disease, constipation, liver disease, celiac disease, among others.

Eduardo Castillo, MD, is a board-certified physician, with specialties in both gastroenterology and hepatology. Dr. Castillo is committed to treating his patients with an exemplary level of care in a family atmosphere and is proud to offer his skills at the Gastro Center of Maryland located in Columbia and Olney, Maryland.

Originally from Lima, Peru, Dr. Castillo received his medical degree from Lima’s prestigious Universidad Peruana Cayetano Heredia. He then traveled to Detroit, Michigan, for an internship, residency, and fellowship at the Henry Ford Hospital, where he served as chief medical resident of internal medicine and chief fellow for gastroenterology.

Dr. Castillo has conducted a wide range of research on digestive issues, as well as liver cancer, cirrhosis, microscopic colitis, and peptic ulcer disease. In addition to being widely published, Dr. Castillo has presented his findings at national medical conferences. He’s also a member of the American Medical Association, the American Gastroenterological Association, and the American College of Gastroenterology, and is board-certified in internal medicine, gastroenterology, and hepatology.

Dr. Castillo has a special interest in treating and preventing colon cancer, as well as treating hepatitis C, GERD, inflammatory bowel disease, and clostridium difficile infection.

Dabo Xu, MD, is a board-certified physician in gastroenterology, hepatology, and internal medicine at the Gastro Center of Maryland, with locations in Annapolis, Columbia, Olney, Riverdale, Timonium and Gaithersburg, Maryland.

Dr. Xu treats a wide variety of conditions at the practice, including gastroesophageal reflux disease (GERD), ulcerative colitis and Crohn’s disease, irritable bowel syndrome (IBS), celiac disease, colon cancer, liver disease, and other gastrointestinal conditions. 

Dr. Xu completed his medical residency at St. Agnes Hospital, as well as a gastroenterology fellowship at the University of Michigan. He has conducted clinical and translational research on several topics, such as GERD, intestinal inflammation, liver diseases and cancers, and gastrointestinal pharmacology. His works were published in the most prestigious gastroenterology journals and presented at national and international medical conferences.

He has more than 20 years of clinical experience in gastroenterology and hepatology. Dr. Xu has a special interest in preventive care, often working alongside patients to prevent disease and improve their quality of life through precise and effective personalized treatments.

With a passion and dedication to patient experiences, Dr. Xu believes it’s important to build relationships with those in his care and enjoys helping patients find better health and wellness.

Farzin Rashti, MD, FACP, is Board Certified in Gastroenterology & Hepatology and Internal Medicine and is dedicated to offering his patients superior personalized care in a respectful and supportive environment. He sees his patients at Gastro Center of Maryland’s office in Riverdale, Maryland.

Dr. Rashti works toward developing a partnership with his patients and forms a unique connection, which allows for a more individualized and targeted treatment plan.

Dr. Rashti received his medical degree from the Howard University College of Medicine. He completed an internship year at the Los Angeles County University of Southern California Medical Center and completed his Internal Medicine residency and Gastroenterology and Hepatology Fellowship at Medstar Georgetown University Hospital/Washington Hospital Center in Washington, DC.

Dr. Rashti has authored numerous scholarly articles and book chapters and has presented his research at national gastroenterology medical conferences. He has helped design and establish protocols for Fecal Microbiota Transplantation for the treatment of recurrent Clostridium Difficile infections. He is a Fellow of the American College of Physicians and is a member of the American Medical Association, American Gastroenterological Association, and American College of Gastroenterology.

He treats patients with a wide variety of gastrointestinal disorders including Crohn’s Disease and Ulcerative Colitis (Inflammatory Bowel Disease), acid reflux and GERD, Irritable Bowel Syndrome, constipation, liver disease, biliopancreatic disorders, Celiac Disease, and Clostridium Difficile infections, in addition to many other ailments. Dr. Rashti specializes in performing advanced endoscopic procedures including Endoscopic Retrograde CholangioPancreatography (ERCP), Single Balloon Enteroscopy, Transoral Incisionless Fundoplication (TIF), Overstitch (endoscopic suturing), and the removal of advanced lesions.

Dr. Mamunes, MD, is one of the skilled gastroenterologists practicing at Gastro Center of Maryland, which has locations in Columbia, Annapolis, Olney, Riverdale, and Lutherville, Maryland. 

Dr. Mamunes grew up in Maryland, attending the University of Maryland, College Park and subsequently completing his medical degree at the University of Maryland School of Medicine. There he graduated summa cum laude and was elected to the Alpha Omega Alpha medical honor society. He then completed his residency in Internal Medicine and fellowship in Gastroenterology and Hepatology at Vanderbilt University Medical Center. During this time, he contributed to multiple research papers published in peer-reviewed medical journals, spanning topics from endoscopic practices to inflammatory bowel disease. He is currently a member of the American Gastroenterological Association (AGA) and American College of Gastroenterology (ACG).

Dr. Mamunes treats a wide range of gastrointestinal and liver disorders including inflammatory bowel disease (IBD), irritable bowel syndrome (IBS), constipation, acid reflux, fatty liver disease, colon cancer screening, celiac disease, and eosinophilic esophagitis. He is skilled in endoscopy (EGD), colonoscopy, and video capsule endoscopy.

In his free time, Dr. Mamunes enjoys hiking, music, and spending time with his wife and dog

Dhruv Lowe, MD, is an experienced, board-certified physician specializing in Gastroenterology, Hepatology, and Internal Medicine. He sees patients at Gastro Center of Maryland's location in Riverdale and Gaithersburg, Maryland.

With a passion for providing exceptional patient care, Dr. Lowe treats a wide range of gastrointestinal conditions, such as acid-reflux disease, irritable bowel syndrome, ulcerative colitis, Crohn's disease, eosinophilic esophagitis, gastritis, celiac disease, liver disease, and other common gastrointestinal ailments utilizing the latest advancements in the field.

Dr. Lowe approaches each patient as a unique individual, tailoring treatment plans to their specific needs. He values a patient-centered approach and strives to establish strong doctor-patient relationships built on trust, empathy, and respect. His goal is to empower patients with the information and resources they need to make informed decisions about their health.

Dr. Lowe earned his medical degree from Maulana Aazad Medical College in New Delhi, India, a leading medical institute in the country. Following that, he completed his residency in Internal Medicine and a fellowship in Gastroenterology and Hepatology at SUNY Upstate Medical University. His extensive training has equipped him with a comprehensive understanding of the field and a commitment to providing evidence-based medical care.

Passionate about advancing medical knowledge, Dr. Lowe has presented at national gastroenterology conferences and has authored numerous review articles and clinical research papers in esteemed peer-reviewed publications.

During his free time, Dr. Lowe enjoys playing tennis, hiking and exploring new food places with his wife and kids.

If you're seeking compassionate, personalized care for your gastrointestinal health, Dr. Lowe is ready to provide exceptional medical expertise and support on your journey to wellness.

Dr. Thi Khuc, MD, is a board-certified physician specializing in Gastroenterology and Hepatology at Gastro Center of Maryland's location in Riverdale, Maryland. Trained with expertise in evidence-based medicine and clinical research by national and international authorities in the field, Dr. Khuc is committed to providing quality, personalized patient care. Dr. Khuc values her patients’ opinions in the medical decision-making process.

Dr. Khuc completed her medical degree at the University of Virginia, followed by an Internal Medicine residency at Loma Linda University in California. Thereafter, she completed her Gastroenterology and Hepatology fellowship under the Clinical Scholars Program at the University of Maryland and Mercy Medical Center in Baltimore, MD. She was elected as a 2023 American Gastroenterological Association (AGA) Innovations Fellow for the Center for GI Innovation and Technology and is currently a member of the AGA and American College of Gastroenterology (ACG).

Dr. Khuc is skilled in colonoscopy, endoscopy, video capsule endoscopy and esophageal manometry and breath testing interpretation. She treats a wide variety of gastrointestinal disorders including colorectal cancer screening, irritable bowel syndrome (IBS), acid reflux (GERD), peptic ulcer disease, microscopic colitis, eosinophilic esophagitis (EoE), constipation, infectious diarrheal disorders, and inflammatory bowel disease (IBD).

In her spare time, Dr. Khuc enjoys painting, traveling, and trying new ice cream flavors with her family and friends.

Pia Prakash, MD, is a leading physician at the Gastro Center of Maryland in Columbia and Olney, Maryland. She is board certified in both gastroenterology and hepatology and is passionate about offering her patients personalized, compassionate care that meets their treatment goals.

Dr. Prakash studied medicine at George Washington University School of Medicine in Washington D.C. After graduating, she completed a residency in internal medicine and a fellowship in gastroenterology, both at George Washington University. Dr. Prakash has also participated in a number of research studies, primarily focusing on colon cancer, inflammatory bowel disease (IBD), women’s health, and the impacts of celiac disease.

Now at the Gastro Center of Maryland, Dr. Prakash treats a wide variety of conditions, including acid reflux, Crohn’s disease and ulcerative colitis, irritable bowel syndrome (IBS), celiac disease, colon cancer, hemorrhoids, and constipation. She also specializes in the placement of Orbera intragastric balloon for weight loss. Additionally, she frequently treats acute and chronic liver disease. Dr. Prakash specializes in the use of capsule endoscopy in diagnosis, also known as PillCam®.

Christopher F. Schultz, MD, is a board-certified gastroenterologist at Anne Arundel Gastroenterology Associates, P.A. in Annapolis, Odenton and Bowie, Maryland. His special interests include general gastroenterology and diseases of the liver.

Dr. Schultz completed his undergraduate studies at Muhlenberg College in Allentown, Pennsylvania, and was elected to the Phi Beta Kappa national honor society. He received his medical degree from the Rutgers Robert Wood Johnson Medical School in New Brunswick, New Jersey.

After completing his residency training in internal medicine at Thomas Jefferson University Hospital in Philadelphia, Dr. Schultz pursued his fellowship training in gastroenterology at the University of Pennsylvania. Upon graduation, Dr. Schultz joined the Department of Medicine faculty at the University of Pennsylvania and served as an assistant professor of medicine until joining Anne Arundel Gastroenterology Associates, P.A. 

As a skilled and experienced gastroenterologist, Dr. Schultz has authored scientific papers, lectured extensively, and conducted research in the field of gastroenterology and hepatology. 

Dr. Schultz currently resides in Baltimore, Maryland.

living in and around Annapolis, Odenton, and Greenbelt, Maryland.

Raza Hasan, MD, is a highly skilled gastroenterologist at Anne Arundel Gastroenterology Associates, P.A. He is proud to provide compassionate, dedicated care to patients living in and around the Pasadena, Maryland, area. Dr. Hasan's particular areas of interest include gastrointestinal motility disorders, esophageal disease, and colon cancer prevention. 

Originally from Baltimore, Maryland, Dr. Hasan attended an accelerated six-year combined bachelor and medical degree program at the University of Missouri-Kansas City. He was elected into the Alpha Omega Alpha Honor Medical Society and subsequently graduated magna cum laude.

Dr. Hasan completed his internship and residency at Thomas Jefferson Medical Center in Philadelphia, Pennsylvania, and his fellowship at Loyola University Medical Center in Chicago, Illinois. 

In his free time, Dr. Hasan loves to travel abroad and has a checklist of trying to swim in every large body of water in the world.

Dr. Hasan is currently accepting new patients and welcomes new patients to Anne Arundel Gastroenterology Associates, P.A. Schedule an appointment by calling or booking a consultation online today.

Praveena G. Velamati, MD, is a board-certified gastroenterologist at Anne Arundel Gastroenterology Associates, P.A., serving patients in Annapolis and Odenton, Maryland.

Dr. Velamati completed an accelerated bachelor's and medical degree program at Eastern Virginia Medical School, followed by her internal medicine residency at Carolinas Medical Center in Charlotte, North Carolina. 

She then pursued her gastroenterology fellowship at Johns Hopkins Bayview Medical Center in Baltimore, Maryland, where she served as chief fellow during her final year and received the Service Excellence Award for outstanding patient care and compassion. While at Johns Hopkins, Dr. Velamati also published scientific papers in the fields of digestive diseases and hepatology. 

Dr. Velamati specializes in general gastroenterology with a focus on women’s health issues. Board certified in gastroenterology, she was voted Top Docs from 2015-2016 for gastroenterology by What’s Up? Magazine – Annapolis by area physicians.

Dr. Velamati has lived in the area for over 10 years with her husband and two children. She enjoys traveling, gardening, and football.

Christopher F. Schultz, MD, is a board-certified gastroenterologist at Anne Arundel Gastroenterology Associates, P.A. in Annapolis, Odenton and Bowie, Maryland. His special interests include general gastroenterology and diseases of the liver.

Dr. Schultz completed his undergraduate studies at Muhlenberg College in Allentown, Pennsylvania, and was elected to the Phi Beta Kappa national honor society. He received his medical degree from the Rutgers Robert Wood Johnson Medical School in New Brunswick, New Jersey.

After completing his residency training in internal medicine at Thomas Jefferson University Hospital in Philadelphia, Dr. Schultz pursued his fellowship training in gastroenterology at the University of Pennsylvania. Upon graduation, Dr. Schultz joined the Department of Medicine faculty at the University of Pennsylvania and served as an assistant professor of medicine until joining Anne Arundel Gastroenterology Associates, P.A. 

As a skilled and experienced gastroenterologist, Dr. Schultz has authored scientific papers, lectured extensively, and conducted research in the field of gastroenterology and hepatology. 

Dr. Schultz currently resides in Baltimore, Maryland.