The 20 Best Colonoscopy Doctors near Catonsville, MD

Gastroenterologist Mouen Khashab specializes in therapeutic endoscopy, and he oversees this group of practitioners across the Johns Hopkins enterprise. Nationally and internationally known in the field of interventional endoscopy, Dr. Khashab has contributed immensely to the field’s advancement as a minimally invasive means to treat gastrointestinal and pancreaticobiliary disorders. Dr. Khashab earned his medical degree from the American University of Beirut Faculty of Medicine, and subsequently completed a residency in internal medicine and a fellowship in gastroenterology at Indiana University. He then completed a two-year fellowship at The Johns Hopkins Hospital before joining the faculty in 2011. A busy researcher, Dr. Khashab has published more than 600 papers in peer-reviewed journals. In 2013, he described the procedure called gastric peroral endoscopic myotomy (known as G-POEM) and was able to disseminate and teach it all over the world. Other procedures that he expanded include peroral endoscopic myotomy (POEM), peroral endoscopic myotomy with fundoplication (POEM-F), Zenker’s peroral endoscopic myotomy (Z-POEM) and full thickness resection. In 2022, he received the Master Endoscopist Award from the American Society for Gastrointestinal Endoscopy (ASGE) for his numerous contributions to the field. His procedural expertise includes endoscopic retrograde cholangiopancreatography (ERCP), endoscopic ultrasound (EUS), interventional EUS, submucosal endoscopy, POEM/achalasia, endoscopic mucosal resection, endoscopic submucosal dissection, luminal stenting, large polyp resection and Barrett’s therapy, among others. Dr. Khashab is involved with multiple gastrointestinal societies and has served on many committees, including the ASGE Standards of Practice Committee, which is in charge of formulating guidelines for the practice of endoscopy. He has also served as an associate editor for the journal Endoscopy, a premier journal in the field. Khashab is a highly sought-after speaker at national and international conferences, and he has participated in multiple live endoscopy conferences. Outside of academic medicine, Dr. Khashab is an entrepreneur. His major interest is in new technology and medical devices, and his goal is to disrupt the field by introducing technology that makes endoscopic procedures safer, easier, efficient and more scalable. Dr. Khashab is rated as a Distinguished provider by MediFind in Colonoscopy. He is also highly rated in 53 other conditions, according to our data. His clinical expertise encompasses Achalasia, Pancreatic Pseudocyst, Bile Duct Obstruction, Endoscopy, and Gastric Bypass. Dr. Khashab is board certified in American Board Of Internal Medicine.

Allen Banegura is a Gastroenterologist practicing medicine in Catonsville, Maryland. Dr. Banegura is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 43 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Angiodysplasia of the Colon, Esophagitis, Gastrectomy, and Colonoscopy. Dr. Banegura is board certified in American Board Of Internal Medicine.

Thomas Abernathy is a Gastroenterologist practicing medicine in Catonsville, Maryland. Dr. Abernathy is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 29 other conditions, according to our data. His clinical expertise encompasses Lactose Intolerance, Familial Adenomatous Polyposis, Hemorrhoids, Gastrectomy, and Colonoscopy. Dr. Abernathy is board certified in American Board Of Internal Medicine.

Mukul Khandelwal is a Gastroenterologist practicing medicine in Elkridge, Maryland. Dr. Khandelwal is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Familial Adenomatous Polyposis, Angiodysplasia of the Colon, Endoscopy, and Gastrectomy. Dr. Khandelwal is board certified in American Board Of Internal Medicine.

Hakim Uqdah is an Internal Medicine provider practicing medicine in Catonsville,, Maryland. Dr. Uqdah is rated as an Experienced provider by MediFind in Colonoscopy. His clinical expertise encompasses Arterial Embolism, Necrosis, Pulmonary Embolism, Endoscopy, and Colonoscopy.

Mahmood Solaiman is a Gastroenterologist practicing medicine in Elkridge, Maryland. Dr. Solaiman is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Irritable Bowel Syndrome (IBS), Menetrier Disease, Gastrostomy, and Gastrectomy. Dr. Solaiman is board certified in American Board Of Internal Medicine.

Dr. Shin specializes Barrett's esophagus, pancreatobiliary disease (pancreatic cyst, family history of pancreatic cancer), GI malignancy, and advanced endoscopy, including endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic ultrasound (EUS). Dr. Shin is rated as an Advanced provider by MediFind in Colonoscopy. She is also highly rated in 21 other conditions, according to our data. Her clinical expertise encompasses Pancreatic Cancer, Familial Pancreatic Cancer, Barrett Esophagus, Endoscopy, and Pancreaticoduodenectomy. Dr. Shin is board certified in American Board Of Internal Medicine.

Eric Blum is a Gastroenterologist practicing medicine in Baltimore, Maryland. Dr. Blum is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Familial Adenomatous Polyposis, Viral Gastroenteritis, Colonoscopy, and Endoscopy. Dr. Blum is board certified in American Board Of Internal Medicine.

An expert in foodborne and intestinal infections, Cynthia Sears is a professor of medicine and oncology at the Johns Hopkins University School of Medicine as well as a professor of molecular microbiology and immunology at the Bloomberg School of Public Health. She is the microbiome program leader of the Bloomberg~Kimmel Institute for Cancer Immunotherapy at Johns Hopkins and is director of the Johns Hopkins Germ-free Murine Facility. She is an infectious diseases expert who has focused on gut infections including diarrhea, foodborne illnesses Clostridium difficile (C. diff) and Helicobacter pylori during her career. In the laboratory and in clinical settings, she has studied the pathogenesis of enterotoxigenic Bacteroides fragilis (ETBF) over the past 25 years. The current focus of the Sears laboratory is to determine how the microbiota and specific bacteria contribute to colon carcinogenesis. The Sears laboratory integrates studies in humans and mouse models, employing microbiology, bioinformatics and immunologic methods. Dr. Sears has worked abroad in Thailand, Brazil, Haiti, Bangladesh and Malaysia. Dr. Sears served as associate editor of Clinical Infectious Diseases from 2000 to 2016. She has been an active member of the Infectious Diseases Society of America (IDSA) for more than 20 years, serving the society in numerous capacities, and is currently president of the organization. Dr. Sears received her medical degree from Thomas Jefferson Medical College followed by training in internal medicine at The New York Hospital (Cornell Medical School) in New York City. She trained in infectious diseases at the Memorial Sloan Kettering Cancer Institute and the University of Virginia. Dr. Sears joined the faculty at the Johns Hopkins University School of Medicine in 1988. Dr. Sears is rated as an Advanced provider by MediFind in Colonoscopy. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Viral Gastroenteritis, HIV/AIDS, Periodontitis, Colonoscopy, and Endoscopy. Dr. Sears is board certified in American Board Of Internal Medicine.

Christopher Kim is a Gastroenterologist practicing medicine in Catonsville, Maryland. Dr. Kim is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Intestinal Cancer, Portal Hypertension, Alcoholic Cirrhosis, Endoscopy, and Colonoscopy.

Neeraj Sardana is a Gastroenterologist practicing medicine in Catonsville, Maryland. Dr. Sardana is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 36 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Familial Adenomatous Polyposis, Portal Hypertension, Endoscopy, and Colonoscopy.

Francis Giardiello is a Gastroenterologist practicing medicine in Baltimore, Maryland. Dr. Giardiello is rated as a Distinguished provider by MediFind in Colonoscopy. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Juvenile Polyposis Syndrome, Peutz-Jeghers Syndrome, Colonoscopy, and Endoscopy.

Alexandra (Aly) Strauss is a transplant hepatologist who treats patients with acute and chronic liver disease, such as cirrhosis and liver cancer. Dr. Strauss completed medical school at the University of South Florida (USF), where she continued for internal medicine residency training and served as chief resident. She then went to The Johns Hopkins University for fellowship training in gastroenterology, followed by a fellowship in transplant hepatology. Her research training began when she completed a master’s degree in industrial/systems engineering at USF. Later, at the Johns Hopkins Bloomberg School of Public Health, she earned her Ph.D. in clinical investigation. Dr. Strauss’s research focus is on the use of systems engineering and data science to improve access to liver transplantation. She serves as core faculty in the Johns Hopkins University Malone Center for Engineering in Healthcare and is a faculty member in the Center for Data Science in Emergency Medicine. Recent News Articles and Media Coverage What Does AI Mean for GI, What does AI mean for GI? - American Gastroenterological Association (07/03/2023) Selected Publications Vong, Tyrus, Nicholas Rizer, Vedant Jain, Valerie L. Thompson, Mark Dredze, Eili Y. Klein, Jeremiah S. Hinson, et al. “Automated Identification of Incidental Hepatic Steatosis on Emergency Department Imaging Using Large Language Models.” Hepatology Communications 9, no. 3 (March 1, 2025). https://doi.org/10.1097/HC9.0000000000000638. Mankowski, Michal A., Sunjae Bae, Alexandra T. Strauss, Bonnie E. Lonze, Babak J. Orandi, Darren Stewart, Allan B. Massie, et al. “Generalizability of Kidney Transplant Data in Electronic Health Records - The Epic Cosmos Database vs the Scientific Registry of Transplant Recipients.” American Journal of Transplantation: Official Journal of the American Society of Transplantation and the American Society of Transplant Surgeons, November 15, 2024. https://doi.org/10.1016/j.ajt.2024.11.008. Xu, Jingzhi, Michal Mankowski, Karen B. Vanterpool, Alexandra T. Strauss, Bonnie E. Lonze, Babak J. Orandi, Darren Stewart, et al. “Trials and Tribulations: Responses of ChatGPT to Patient Questions about Kidney Transplantation.” Transplantation 109, no. 3 (March 1, 2025): 399–402. https://doi.org/10.1097/TP.0000000000005261. Strauss AT, Morgan C, El Khuri C, Slogeris B, Smith AG, Klein E, Toerper M, Peterson S, Gurses AP, DeAngelo A, Debraine, A, Levin S, Hinson J. Human-centered design and usability evaluation of LOOP, a patient outcomes-driven feedback platform for emergency medicine clinicians. JMIR Human Factors. 2022;9(1):e30130; *corresponding author. Strauss AT, Yeh J, Martinez D, Yanokyan G, Yoder J, Nehra R, Feller T, Bull-Henry K, Stein E, Hsu L, Al-Grain H, Zabko C, Fain C. A patient-centered framework for health systems engineering in gastroenterology: improving inpatient colonoscopy bowel preparation. BMC Gastroenterol. 2021;21(1):89;. Dr. Strauss is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Hepatitis C, Hepatitis, Liver Failure, Liver Transplant, and Endoscopy. Dr. Strauss is board certified in American Board Of Internal Medicine.

Dr. Nilofer S. Azad is Professor of Oncology at Johns Hopkins University School of Medicine and serves as the Associate Cancer Center Director for Clinical Research for the Johns Hopkins Sidney Kimmel Cancer Center. Dr. Azad earned her medical degree and completed a residency in internal medicine at Baylor College of Medicine in Houston, Texas. She then completed a fellowship in oncology and hematology at the National Institute of Health's National Cancer Institute in Bethesda, Maryland where she served as chief fellow. Dr. Azad’s research focused on early phase drug development and the intersection of moving exciting laboratory findings into patients for new treatment options Dr. Azad joined the faculty at the Kimmel Cancer Center in 2008. Dr. Azad’s clinical expertise is in cancers of the gastrointestinal tract, with a concentration in colorectal cancer, cholangiocarcinoma and pancreaticobiliary tract cancer. Her research efforts are dedicated to developing new drug combinations for patients with advanced cancer. In particular, Dr. Azad’s laboratory and clinical trials explore epigenetic therapy in combination with chemotherapy and immunotherapy to improve survival for patients, as well as molecularly targeted drugs. She is an active clinical trialist, leading multiple clinical trials of molecularly targeted agents for advanced cancer patients. Dr. Azad has received numerous grants for her work from entities such as the NCI (National Cancer Center), American Cancer Society, American Society of Clinical Research, Breakthrough Cancer Foundation, the Lustgarten Foundation, The Gateway Foundation, and the National Comprehensive Cancer Network, among others. She served as Principal for Johns Hopkins on the AACR Stand Up 2 Cancer Colorectal Cancer Dream Team and is a member of the Stand Up 2 Cancer Epigenetics Dream Team, leading the GI cancer initiatives for the group. Dr. Azad is a national leader in GI cancer, including serving as a member of the national NCI Colon Cancer Task Force and as Co-Chair of the Scientific and Medical Advisory Board for the Cholangiocarcinoma Foundation. She has a presidential appointment to the National Cancer Advisory Board. Dr. Azad is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 18 other conditions, according to our data. Her clinical expertise encompasses Cholangiocarcinoma (Bile Duct Cancer), Colorectal Cancer, Pancreatic Cancer, Hepato-Pancreato-Biliary Surgery, and Colonoscopy. Dr. Azad is board certified in American Board Of Internal Medicine.

Dr. John Migaly is a distinguished colorectal surgeon and Chief of the Division of Colorectal Surgery/Ravitch Division at Johns Hopkins Medicine. He specializes in the treatment of colorectal cancer, inflammatory bowel disease, and other benign and complex colorectal conditions. Dr. Migaly is committed to providing advanced, patient-centered care, often using minimally invasive techniques including laparoscopic and robotic surgery, to help reduce recovery time and improve outcomes. Dr. Migaly comes to Johns Hopkins Medicine from the Duke University School of Medicine, serving from 2008-2024 on the surgery faculty treating patients primarily through the Duke Cancer Institute. He was elevated to Program Director of the General Surgery Residency in 2012, and subsequently served as Vice Chair of Education until 2024. His work was critical to the success of the undergraduate, graduate, and continuing medical education missions at Duke Surgery. Dr. Migaly earned his B.A. in Biochemistry from New York University and his medical degree from the New York University School of Medicine. He completed surgical residency and a research fellowship at Temple University Health Sciences Center, and colorectal surgery fellowship at Cleveland Clinic Florida. Dr. Migaly’s career has been marked not only by a complex and high-volume clinical colon and rectal surgery practice, but also a commitment to research and education, supported by greater than 200 publications, book chapters, and presentations. His research is centered around improving practice patterns and outcomes in colorectal cancer care and recovery. His leadership and dedication to advancing the field of colorectal surgery is evident through his service on committees that shape how colorectal care is delivered nationally, via his past and present service on the Program Committee, the Clinical Practice Guidelines Committee and the Diversity and Inclusion Committee of the American Society of Colon and Rectal Surgeons. Videos John Migaly, M.D.Chief of Colorectal Surgery"". Dr. Migaly is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Anal Cancer, Gastrointestinal Fistula, Colostomy, and Ileostomy. Dr. Migaly is board certified in American Board Of Colon And Rectal Surgery and American Board Of Surgery.

Farzin Rashti is a Gastroenterologist practicing medicine in Columbia, Maryland. Dr. Rashti is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Hirschsprung Disease, Gastrointestinal Bleeding, Angiodysplasia of the Colon, Gastrectomy, and Endoscopy. Dr. Rashti is board certified in American Board Of Internal Medicine.

Dr. Pia Prakash is a physician who specializes in both Gastroenterology and Liver Disease. Dr. Prakash received her medical degree from the George Washington University School of Medicine, as well as her Internal Medicine residency and Gastroenterology fellowship. Dr. Prakash has participated in numerous research studies focused on colon cancer, inflammatory bowel disease, women's health, and celiac disease. At the Gastro Center of Maryland, Dr. Prakash treats a variety of gastrointestinal disorders including acid reflux, Crohn's disease, colitis, irritable bowel syndrome, celiac disease, colon cancer, constipation and hemorrhoids along with acute and chronic liver disease. She specializes in the use of the capsule endoscopy, also known as the small bowel pillcam, or PillCam™ SB. She is focused on offering patients personalized treatment goals to meet all of their health care needs. Dr. Prakash is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Chronic Idiopathic Constipation (CIC), Viral Gastroenteritis, Crohn's Disease, Colonoscopy, and Endoscopy.

Dr. Chowdhury specializes in Crohn’s disease, ulcerative colitis and colorectal cancer screening. Her research interests include inflammatory bowel disease and colorectal cancer. Dr. Chowdhury is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Viral Gastroenteritis, Ulcerative Colitis, Crohn's Disease, Endoscopy, and Gastrectomy. Dr. Chowdhury is board certified in American Board Of Internal Medicine.

Dr. Rai was awarded the “TOP DOC” in Gastroenterology award by Baltimore Magazine for 2016. Dr. Rai is a Gastroenterologist & Hepatologist, with over 22 years of experience in this field. He is the Medical Director of Gastro Center of Maryland & Cascades Endoscopy Center and has served on the Medical Faculty at Johns Hopkins University School of Medicine for many years, starting in 1997. He has been in many leadership positions in the Johns Hopkins Division of Gastroenterology & Hepatology, including as the Medical Director, Adult Liver Transplantation and Director, Clinical Effectiveness. He completed his Gastroenterology & Hepatology Fellowship at Johns Hopkins University in 1996 and completed an additional year of Advanced Fellowship at Johns Hopkins University in Transplant Hepatology and Biliary Disorders. Dr. Rai is considered a national thought leader and expert in the field of Gastroenterology and Liver disease and presents regularly at national and regional meetings. He 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 50,000 procedures in this field and pioneered new and innovative medical techniques. Dr. Rai is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Crohn's Disease, Gastric Dysmotility, Colitis, Colonoscopy, and Gastrectomy.

Eduardo Del Castillo is a Gastroenterologist practicing medicine in Columbia, Maryland. Dr. Del Castillo is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Trichohepatoenteric Syndrome, Diarrhea, Gastric Dysmotility, Endoscopy, and Gastrectomy. Dr. Del Castillo is board certified in American Board Of Internal Medicine.