The 20 Best Colonoscopy Doctors near Glen Burnie, 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.

Gastroenterologist Saowanee Ngamruengphong specializes in the endoscopic diagnosis and management of gastrointestinal malignancies, premalignant and malignant lesions in the gastrointestinal tract (e.g., early gastric cancer, Barrett's esophagus-associated neoplasia), esophageal cancer, colon polyps or early colorectal cancer, and pancreatic and biliary disease. Dr. Ngamruengphong earned a medical degree from Chulalongkorn University and completed residency training at the Texas Tech University Health Sciences Center. She undertook fellowship training in gastroenterology at the Mayo School of Graduate Medical Education and further fellowship training in therapeutic endoscopy at The Johns Hopkins Hospital. Her research interests include endoscopic resection and the management of precancerous or cancerous gastrointestinal lesions. Dr. Ngamruengphong is a member of several professional organizations, including the Thai Medical Council, the American College of Gastroenterology and the American Gastroenterological Association. Videos Endoscopic Submucosal Dissection (ESD) — Eileen’s Story Recent News Articles and Media Coverage A Rare, Stomach-Saving Endoscopic Procedure, Inside Tract (Spring 2021) Case Presentation: ESD-TAMIS, Inside Tract (Spring 2019) Innovative Approaches to Colorectal Surgery Benefit Patients, Surgery (Winter 2019) For Colorectal Polyps: Early Detection and Minimally Invasive Endoscopic Resection, Inside Tract (Winter, 2019) The Cutting Edge of Endoscopic Resection, Inside Tract (Spring, 2017) Stomach Cancer: Know Your Risks & Treatment Options, Johns Hopkins Surgery (4/26/2017). Dr. Ngamruengphong is rated as an Advanced provider by MediFind in Colonoscopy. She is also highly rated in 41 other conditions, according to our data. Her clinical expertise encompasses Achalasia, Stomach Cancer, Pancreatic Pseudocyst, Endoscopy, and Gastric Bypass. Dr. Ngamruengphong 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.

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.

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.

Dr. Akshintala received his medical degree from the Andhra Medical College in India in 2011. Following this, he completed a post-doctoral research fellowship in Gastroenterology at Johns Hopkins Hospital where he established himself as a dedicated researcher. Dr. Akshintala completed his internship and residency training in Internal Medicine at the University of Pittsburgh Medical Center in 2016. He completed his fellowship in Gastroenterology at Johns Hopkins Hospital in 2019. Dr. Akshintala then completed additional fellowships in Advanced Endoscopy and Medical Pancreatology at the Johns Hopkins Hospital in 2021. As of July 1, 2021, Dr. Akshintala is an Assistant Professor of Medicine in the Division of Gastroenterology at Johns Hopkins Hospital. Dr. Akshintala’s research is focused on the medical as well as endoscopic evaluation and treatment of inflammatory disorders of the pancreas. He is also interested in developing new devices and technologies for the care of patients with gastrointestinal disorders. Dr. Akshintala has conducted multi-national randomized-controlled trials and has won numerous awards at major national and international conferences for his research. He also has authored more than 60 original articles, editorials, book chapters and review articles. Dr. Akshintala has received grant funding from the American Society for Gastrointestinal Endoscopy (ASGE) and the Maryland State to support his research. As an innovator, Dr. Akshintala has patented new therapies for gastrointestinal bleeding and pancreas necrosis, a complication of acute pancreatitis. An internationally recognized researcher conducting multi-national clinical trials, Dr. Akshintala holds an Adjunct Assistant Professor position at the Asian Institute of Gastroenterology in India, one of the largest gastroenterology hospitals in the world. Dr. Akshintala is a Ph.D. candidate with the Dutch Pancreatitis Study Group in the Netherlands, who have been pioneered landmark clinical trials related to pancreatitis. Dr. Akshintala offers in-person clinic visits at the Baltimore location and also provides telemedicine visits for patients located in Maryland, Washington, D.C. and Virginia. Dr. Akshintala 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 Hereditary Pancreatitis, Acute Pancreatitis, Chronic Pancreatitis, Endoscopy, and Lithotripsy. Dr. Akshintala is board certified in American Board Of Internal Medicine.

Maria Oliva is a Pediatric Gastroenterologist practicing medicine in Baltimore, Maryland. Dr. Oliva is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Viral Gastroenteritis, Crohn's Disease, Hemorrhagic Proctocolitis, Gastrostomy, and Colonoscopy. Dr. Oliva is board certified in American Board Of Pediatrics.

Dr. Nimgaonkar is gastroenterologist and a medical technology researcher at Johns Hopkins University. He is an assistant professor of medicine, a medical director at the Center for Bioengineering Innovation and Design in the JHU Biomedical Engineering department and an adjunct faculty at the JHU Carey Business School. He leads numerous translational technology research projects at Johns Hopkins in the areas of gastrointestinal and metabolic diseases. His particular interest is to investigate the physiology behind various interventions to treat metabolic diseases such as diabetes and obesity and apply various engineering tools to develop novel therapies for these diseases. He has been inventor on many technologies and a recipient of numerous awards including the AGA-Boston Scientific career development technology & innovation award and the CIMIT-Johnson & Johnson Young Clinician award. His work has been supported by grants from both foundational ​and federal (NIH, NSF) agencies. Recent News Articles and Media Coverage AGA - Boston Scientific Career Development Technology & Innovation Award, News Medical (December 5, 2014) Update on AGA - Boston Scientific Career Development Technology & Innovation Award, GI & Hepatology News (April 6, 2015) Pumped, Inside Tract (Winter 2016) Advanced POC Testing Devices Open New Avenues for Diagnostics, GEN Exclusives (November 22, 2016) A Multi-Biomarker Blood Test Clinically-Proven for Early Detection of Col0rectal Cancer PRWeb (May 2, 2017) Genetic Cancer Risk Test for 98 Geners, 24 Hereditary Cancers Bypassing Bypass Surgery, Inside Tract (Spring 2017) Despite Theranos, Real, Capital-Efficient Innovation Exists For Blood Tests, Life Science Leader (June 28, 2018) A Pill to Treat Diabetes, Scientific American (November 21, 2017) GI leader to know: Dr. Ashish Nimgaonkar of Johns Hopkins Medicine, Becker's Healthcare (August 31, 2018) Physician innovator working to bring new tech to patients, thanks to AGA funding, American Gastroenterological Association (April 9, 2019) AGA's featured researcher Dr. Ashish Nimgaonkar, Becker's Healthcare (April 17, 2019) Lab Website Ashish Nimgoankar Lab The Ashish Nimgoankar Lab is interested in translational technology development and image-guided therapies. Dr. Nimgaonkar is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Obesity, Achalasia, Gastrointestinal Bleeding, Endoscopy, and Gastric Bypass. Dr. Nimgaonkar is board certified in American Board Of Internal Medicine.

Chady Atallah is a General Surgeon practicing medicine in Baltimore, Maryland. Dr. Atallah 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 Familial Colorectal Cancer, Colorectal Cancer, Anal Cancer, Colonoscopy, and Osteotomy.

Dr. Nancy Li Schoenborn is an associate professor of medicine at Johns Hopkins University School of Medicine. Her clinical expertise is geriatric medicine and gerontology. Dr. Schoenborn earned her M.D. from Johns Hopkins University School of Medicine. She completed her residency in medicine and a fellowship in geriatric medicine and gerontology from Johns Hopkins Bayview Medical Center. Dr. Schoenborn is nationally and internationally renowned for her research on incorporating patient perspectives and overall health trajectories in individualized decision-making and communication with older patients. Her research has been funded by the National Institute on Aging, the American Cancer Society, the American Geriatrics Society, and the John A. Hartford Foundation. Her research findings have been published in high impact journals such as JAMA Internal Medicine and JAMA Oncology. She was named the Outstanding Junior Investigator of the Year by the American Geriatrics Society in 2019. Dr. Schoenborn is rated as an Experienced provider by MediFind in Colonoscopy. Her clinical expertise encompasses Dementia, Familial Hypertension, Hypertension, Colonoscopy, and Endoscopy. Dr. Schoenborn is board certified in American Board Of Internal Medicine.

John Affronti is a Gastroenterologist practicing medicine in Baltimore, Maryland. Dr. Affronti is rated as an Experienced provider by MediFind in Colonoscopy. His clinical expertise encompasses Childhood Volvulus, Portal Hypertension, Indigestion, Endoscopy, and Gastrectomy. Dr. Affronti 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.

Kunmi Majekodunmi is a primary care provider, practicing in Internal Medicine in Glen Burnie, Maryland. Dr. Majekodunmi is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 53 other conditions, according to our data. His clinical expertise encompasses Paraplegia, Diverticular Disease, Obesity, Endoscopy, and Gastrostomy.

Nnaemeka Agajelu is a primary care provider, practicing in Internal Medicine in Glen Burnie, Maryland. Dr. Agajelu is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 34 other conditions, according to our data. His clinical expertise encompasses Lung Metastases, Type 2 Diabetes (T2D), Osteomyelitis in Children, Endoscopy, and Gastrostomy.

Alok Gupta is a General Surgeon practicing medicine in Glen Burnie, Maryland. Dr. Gupta is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Gallbladder Disease, Gallstones, Choledocholithiasis, Hernia Surgery, and Colostomy.

Alif Manejwala is a Gastroenterologist practicing medicine in Glen Burnie, Maryland. Dr. Manejwala is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Chronic Erosive Gastritis, Esophagitis, Endoscopy, and Gastrostomy.