The 20 Best Toxic Megacolon Doctors in The United States
Find the Top Toxic Megacolon Experts and Specialists
Sullivan Digestive Center
. Dr. Sullivan is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 37 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Swallowing Difficulty, Painful Swallowing, and Gastritis. Dr. Sullivan is board certified in American Board Of Internal Medicine.
Advocate Medical Group General Surgery
James O'donnell is a General Surgeon practicing medicine in Orland Park, Illinois. Dr. O'donnell is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Hernia, Cholecystitis, Gallbladder Disease, Colostomy, and Gastrostomy. Dr. O'donnell is board certified in American Board Of Surgery.
Geisinger Medical Center - Gastroenterology
Danial Shaikh, MD, is an accomplished interventional gastroenterologist specializing in luminal interventions and advanced therapeutic endoscopy. He completed his medical education at Ziauddin University in Karachi, Pakistan, followed by an internal medicine residency and a gastroenterology fellowship at BronxCare Health System, Icahn School of Medicine at Mount Sinai in New York, where he also served as chief resident and chief fellow.|Dr. Shaikh further honed his skills during an advanced endoscopy fellowship at Moffitt Cancer Center, University of South Florida, and later at the Mayo Clinic in Arizona, where he focused on third space endoscopy. His board certifications include gastroenterology and internal medicine.|Fluent in both English and Urdu, Dr. Shaikh has clinical and research interests primarily in third space endoscopy and gastrointestinal oncology. His dedication to advancing the field of endoscopy through patient care, research and education has established him as a respected figure in his specialty. Dr. Shaikh is rated as a Distinguished provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Toxic Megacolon, Saddle Pulmonary Embolism, Ascites, Endoscopy, and Colonoscopy.
Reading Hospital
. Dr. Butts is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Ogilvie Syndrome, Subarachnoid Hemorrhage, Delirium, Splenectomy, and Hernia Surgery. Dr. Butts is board certified in American Osteopathic Board Of Surgery.
Integrated Medical Group PC - Surgery
. Dr. Levan is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Retroperitoneal Inflammation, Gallstones, Choledocholithiasis, Colostomy, and Hernia Surgery. Dr. Levan is board certified in American Board Of Surgery.
Indiana University Health University Hospital
Monika Fischer is a Gastroenterologist practicing medicine in Indianapolis, Indiana. Dr. Fischer is rated as a Distinguished provider by MediFind in the treatment of Toxic Megacolon. She is also highly rated in 29 other conditions, according to our data. Her clinical expertise encompasses Crohn's Disease, Ulcerative Colitis, Viral Gastroenteritis, Colonoscopy, and Endoscopy.
Gastroenterology - Dignity Health - San Luis Obispo, CA
Board Certification: Certified by American Board of Internal Medicine, GastroenterologyFellowship Training: Duke University Medical CenterInternship and Residency: University of California, San Diego Medical CenterMedical School: University of Texas Southwestern Medical SchoolProfessional Memberships: Member, American Gastroenterological AssociationMember and Fellow, American College of Gastroenterology. Dr. Mundorf is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 34 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Lower Esophageal Ring, Benign Esophageal Stricture, Endoscopy, and Colonoscopy. Dr. Mundorf is board certified in Board Certified By American Board Of Internal Medicine, Gastroenterology. Dr. Mundorf is currently accepting new patients.
Pacific Central Coast Health Centers
Dr. Jonathan Riegler is a Board Certified Gastroenterologist. Medical Education: University of Michigan Medical SchoolInternship and Residency: Duke UniversityFellowship: University of California, San FranciscoDr. Riegler's Care Philosophy: “I strive to recognize and understand the complex issues involved in the physician- patient relationship and try to treat patients in the way I'd want me or my family members treated.” When he's not working Dr. Riegler enjoys Cycling and traveling. Dr. Riegler is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 24 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Gastroesophageal Reflux Disease (GERD), Gardner Syndrome, Colonoscopy, and Gastrectomy. Dr. Riegler is board certified in Internal Medicine (Sub: Gastroenterology). Dr. Riegler is currently accepting new patients.
Gastroenterology - Dignity Health - Templeton, CA
Bringing extensive expertise to the Central Coast, Dr. Jeffry Brown is a dedicated gastroenterologist with Dignity Health Pacific Central Coast Health Centers. His robust academic background includes a B.A. in Medical Physics and an M.A. in Biophysics from UC Berkeley. He went on to earn his M.D. from U.C. Davis School of Medicine, then completed his Internal Medicine residency at St. Mary Medical Center in Long Beach, followed by a Gastroenterology fellowship at Harbor-UCLA Medical Center. Dr. Brown previously led Endoscopy Services as Medical Director at Kaweah Delta Medical Center since 2005 and holds a fellowship in Endoscopic Ultrasound. While proficient in general gastroenterology, he has a special interest in the diagnosis and treatment of pancreatic and biliary diseases. In his leisure time, Dr. Brown enjoys biking and golfing. Dr. Brown is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Painful Swallowing, Swallowing Difficulty, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Gastrectomy. Dr. Brown is board certified in Internal Medicine and Internal Medicine (Sub: Gastroenterology). Dr. Brown is currently accepting new patients.
Gastroenterology - Dignity Health - Arroyo Grande, CA
Dr. Quezada earned his Doctor of Medicine degree from TexasA&M Health Science Center College of Medicine. He is Board Certified in Internal Medicine and completed his Internal Medicine and Gastroenterology/Hepatology training from Los Angeles County/University of Southern CaliforniaMedical Center. He’s skilled in general GI procedures as well as EndoscopicRetrograde Cholangiopancreatography (ERCP) and performs this procedure at the French Hospital Advanced GI Lab. While in medical school, Dr. Quezada developed a health care program for medical students to participate in treatment of migrant farm worker patients. Dr. Quezada is fluent in Spanish ❝ My care philosophy is to work with my patients to developtheir health goals and do all that is possible to assist themin achieving those goals.❞—Michael Quezada, MD. Dr. Quezada is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Toxic Megacolon, Gardner Syndrome, Endoscopy, and Gastrectomy. Dr. Quezada is board certified in Internal Medicine and Internal Medicine (Sub: Gastroenterology). Dr. Quezada is currently accepting new patients.
Mercy Health — Maumee Bay General Surgery
Manish Thusay is a Colorectal Surgeon and a General Surgeon practicing medicine in Oregon, Ohio. Dr. Thusay is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Hernia, Diverticular Disease, Malnutrition, Colostomy, and Gastrostomy. Dr. Thusay is currently accepting new patients.
Sansum Clinic Pueblo Multi-Specialty Clinic
Mick Meiselman is a Gastroenterologist practicing medicine in Santa Barbara, California. He has been practicing medicine for over 47 years. Dr. Meiselman is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 53 other conditions, according to our data. His clinical expertise encompasses Pancreatic Pseudocyst, Bile Duct Obstruction, Cholestasis, Pancreatectomy, and Endoscopy.
Jefferson Primary & Specialty Care – Fish Pond Road
Nikhitha Mantri is a Hepatologist and a Gastroenterologist practicing medicine in Sewell, New Jersey. Dr. Mantri is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Toxic Megacolon, DRESS Syndrome, Hereditary Pancreatitis, Endoscopy, and Colonoscopy. Dr. Mantri is board certified in Internal Medicine and Gastroenterology. Dr. Mantri is currently accepting new patients.
Franciscan Digestive Care Associates - Enumclaw
Keith Sun, MD, specializes in gastroenterology. Dr. Sun treats the whole person, not just their digestive condition. He combines scientific knowledge and technical expertise with individualized care, helping patients improve their gut health. He forms partnerships with his patients to create treatment plans that align with their personal goals and values. He prioritizes educating his patients about their conditions and available treatment options, so they can make the best decisions for their health.Dr. Sun is a member of the American College of Gastroenterology, American Gastroenterological Association, American Society for Gastrointestinal Endoscopy, American Medical Association and American College of Physicians.In his free time, Dr. Sun enjoys staying up-to-date with the latest trends in technology, playing video games, gardening, exploring new destinations and spending time with his family.Conditions and procedures:Capsule endoscopyColorectal cancer screening/colonosocopyDiagnostic and therapeutic upper endoscopyGastroesophageal reflux (GERD)General gut healthInflammatory bowel diseaseIrritable bowel syndromeLiver diseasePancreatitisPush enteroscopy. Dr. Sun is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Toxic Megacolon, Gardner Syndrome, Turcot Syndrome, Colonoscopy, and Endoscopy. Dr. Sun is board certified in American Board Of Internal Medicine. Dr. Sun is currently accepting new patients.
WPHPA Digestive Disease & Nutrition
Dr. Ahmed Alemam is a board-certified gastroenterologist with White Plains Hospital Physician Associates. Dr. Alemam is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Toxic Megacolon, Hepatitis A, Anemia, Endoscopy, and Gastrostomy. Dr. Alemam is board certified in American Board Of Internal Medicine.
Beth Israel Deaconess Hospital Plymouth - Surgery
Emmanuel Nwachuku is a Vascular Surgeon practicing medicine in Plymouth, Massachusetts. Dr. Nwachuku is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Toxic Megacolon, Femoral Hernia, and Appendectomy. Dr. Nwachuku is board certified in American Board Of Surgery.
Aurora Gastroenterology
Khaled Alchirazi is a Gastroenterologist practicing medicine in Milwaukee, Wisconsin. Dr. Alchirazi is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Toxic Megacolon, Gastrointestinal Fistula, Hemorrhagic Proctocolitis, and Colitis. Dr. Alchirazi is board certified in .
Meridian Trauma Associates
Nasim Ahmed is a General Surgeon practicing medicine in Neptune, New Jersey. Dr. Ahmed is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Delirium, Subdural Hematoma, Chronic Subdural Hematoma, Craniectomy, and Splenectomy. Dr. Ahmed is board certified in American Board Of Surgery and American Board Of Surgery.
Avon - Richard E. Jacobs Health Center
Anthony Deross is a General Surgeon practicing medicine in Avon, Ohio. He has been practicing medicine for over 32 years. Dr. Deross is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Retroperitoneal Inflammation, Pectus Excavatum, Pectus Carinatum, and Pilonidal Sinus Disease. Dr. Deross is board certified in American Board Of Surgery, 2008.
Banner - University Medicine North
Sasha Taleban is a Gastroenterologist practicing medicine in Tucson, Arizona. Dr. Taleban is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Crohn's Disease, Ulcerative Colitis, Colitis, Endoscopy, and Colonoscopy. Dr. Taleban is board certified in American Board Of Internal Medicine. Dr. Taleban is currently accepting new patients.
Last Updated: 04/28/2026


















