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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, small intestinal bacterial overgrowth (SIBO), 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.

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, Olney, 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.

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

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.

Thomas L. Simcox, MD, is proud to provide comprehensive gastroenterology care at Anne Arundel Gastroenterology Associates, P.A. in Annapolis and Kent Island, Maryland. Board-certified in internal medicine and gastroenterology, Dr. Simcox's areas of interest include acid reflux, gastrointestinal malignancies, and liver disorders.

Born and raised in northern California, Dr. Simcox graduated from the University of California, Davis in 2002 and subsequently spent 18 months in a genetics research lab. He moved to Virginia to attend Virginia Commonwealth University School of Medicine, where he received his medical degree. 

Dr. Simcox completed his internal medicine internship and residency at the University of Maryland Medical Center in Baltimore. He then completed his gastroenterology and hepatology fellowship training with the University of Maryland and the National Institutes of Health Scholars program. Dr. Simcox has presented his research in gastrointestinal disorders at the nation's largest gastroenterology conferences. 

He lives in Annapolis with his wife, who is a pediatrician at Annapolis Pediatrics. He enjoys travel, snow and water sports, and running.

Gowri Kularatna, MD, specializes in gastroenterology at GI Associates of Maryland in Waldorf, Maryland. She has years of experience in the medical field and uses her knowledge to diagnose and treat patients. 

Dr. Kularatna attended Emory University in Atlanta, Georgia, obtaining her bachelor’s degree in biology. She then received her medical degree from the University of Maryland School of Medicine in Baltimore.  

Dr. Kularatna completed her internal medicine residency at Boston Medical Center in Massachusetts and a gastroenterology fellowship at The Barnes-Jewish Hospital through Washington University in St. Louis, Missouri. 

Dr. Kularatna is board-certified in internal medicine and gastroenterology. She is also a professional member of the American College of Gastroenterology and the American Gastroenterology Association.

At GI Associates of Maryland in Waldorf, Dr. Kularatna works closely with patients to ensure she provides expert care. She has a comfortable office setting and takes an evidence-based approach to treat her patients. 

Rufaat Mando, MD, is an experienced gastroenterologist dedicated to providing top-notch care to patients at GI Associates of Maryland in Waldorf, Maryland. Originally from the vibrant city of New Orleans, Louisiana, Dr. Mando pursued his higher education at esteemed institutions.

He earned his degree in Psychology from the Louisiana State University in Baton Rouge, Louisiana, before pursuing his medical degree at Saba University School of Medicine in the Caribbean Netherlands. Dr. Mando further honed his skills and knowledge through a rigorous residency in internal medicine at East Tennessee State University in Johnson City, Tennessee. He then completed a specialized Gastroenterology fellowship at the University of South Alabama in Mobile, Alabama.

With board certifications in internal medicine and gastroenterology, Dr. Mando demonstrates his commitment to maintaining the highest standards of expertise in his field. He is an esteemed member of several professional organizations, including the American College of Gastroenterology, the American Gastroenterology Association, the American Society for Gastrointestinal Endoscopy, and the American Association for the Study of Liver Diseases.

Dr. Mando's leadership is evident as he actively participates in committees at a local hospital which showcases his dedication to driving positive change within the medical community and enhancing patient care. In addition, Dr. Mando places a strong emphasis on collaboration and communication with fellow doctors from diverse medical fields in the area. By fostering these connections, he ensures that his patients have maximum access to comprehensive and specialized care, ultimately prioritizing their well-being and treatment outcomes.

Dr. Mando is well-versed in the management of various gastrointestinal disorders. His particular areas of expertise and interest include inflammatory bowel disease (IBD), hemorrhoid ligation therapy, Gastroesophageal Reflux Disease (GERD), and implementing effective screening programs, such as colon cancer screening.

Patients value Dr. Mando not only for his extensive knowledge and skill but also for his compassionate and patient-centered approach. With a dedication to improving the quality of life for those he serves, he remains committed to delivering exceptional care and empowering his patients to achieve optimal gastrointestinal health.

Khadijat Balogun, MD, is a gastroenterologist at GI Associates of Maryland. She offers compassionate and effective care to patients at the Waldorf, Maryland, office. 

Dr. Balogun obtained her medical degree from SUNY Downstate Medical Center in Brooklyn, New York. She completed her internal medicine residency at SUNY Downstate Medical Center and a three-year fellowship program at Albany Medical Center in New York. 

Dr. Balogun is board-certified in internal medicine as well as gastroenterology. She is a professional member of the American Gastroenterological Association, the American College of Gastroenterology, and the American Society for Gastrointestinal Endoscopy.

Dr. Balogun cares for patients with a wide range of issues, including colon cancer screening, gastroesophageal reflux disease, Barrett’s esophagus, liver disease, women’s health, irritable bowel syndrome, and inflammatory bowel disease (Crohn’s disease and ulcerative colitis).

Dr. Balogun aims to provide the highest medical care to all her patients in a safe and friendly environment.

Lornette Mills, MD, is a respected gastroenterologist serving patients at GI Associates of Maryland in Waldorf, Maryland. She specializes in internal medicine and gastroenterology and enjoys working closely with her patients to ensure optimal health. 

In 1993, Dr. Mills received her medical degree from the Jacobs School Of Medicine And Biomedical Sciences in Buffalo, New York. In 1996, she completed her internal medicine residency program at George Washington University Hospital in Washington, DC. She then finished her gastroenterology fellowship program at SUNY Health Science Center in Brooklyn in 1999. 

Before joining her current practice, Dr. Mills practiced for two years in Prince Frederick, Maryland. This experience makes her an excellent addition to the GI Associates of Maryland team. 

At the practice, Dr. Mills provides compassionate and effective care. She takes the time to listen to her patients and doesn't rush through her appointments. You're in good hands with Dr. Mills.