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    Last Updated: 02/22/2026

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    MediFind found 20 doctor with experience in Toxic Megacolon near Illinois, US. Of these, 13 are Experienced and 7 are Advanced.

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    LocationClose
    20 providers found
      James R. O'donnell
      Experienced in Toxic Megacolon
      General Surgery
      Experienced in Toxic Megacolon
      General Surgery

      Advocate Medical Group General Surgery

      9550 W 167th St, 
      Orland Park, IL 
      Languages Spoken:
      English

      James O'donnell is a General Surgeon in Orland Park, Illinois. Dr. O'donnell is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Hernia, Cholecystitis, Gallbladder Disease, Colostomy, and Gastrostomy.

      Hasan B. Alam
      Experienced in Toxic Megacolon
      General Surgery
      Experienced in Toxic Megacolon
      General Surgery
      676 N St Clair St Ste 2320, Arkes Pavilion, 
      Chicago, IL 
      Experience:
      36+ years
      Languages Spoken:
      English
      Offers Telehealth

      Hasan Alam is a General Surgeon in Chicago, Illinois. Dr. Alam has been practicing medicine for over 36 years and is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Traumatic Brain Injury, Choledocholithiasis, Gallstones, Gallbladder Removal, and Appendectomy.

      Gene Chiao
      Experienced in Toxic Megacolon
      Gastroenterology | Pharmacology
      Experienced in Toxic Megacolon
      Gastroenterology | Pharmacology

      Comprehensive Gastrointestinal Health

      40 Skokie Blvd., Suite 110, 
      Northbrook, IL 
      Languages Spoken:
      English
      Offers Telehealth

      Gene Chiao is a Pharmacologist and a Gastroenterologist in Northbrook, Illinois. Dr. Chiao is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Irritable Bowel Syndrome (IBS), Heartburn, Benign Esophageal Stricture, Colonoscopy, and Gastrectomy.

      Learn about our expert tiers
      John Venetos
      Experienced in Toxic Megacolon
      Gastroenterology | Internal Medicine
      Experienced in Toxic Megacolon
      Gastroenterology | Internal Medicine

      John Venetos, MD, Ltd.

      2740 W. Foster Ave., Suite 116, 
      Chicago, IL 
      Languages Spoken:
      English
      Offers Telehealth

      John Venetos is an Internal Medicine specialist and a Gastroenterologist in Chicago, Illinois. Dr. Venetos is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Gastrointestinal Bleeding, Protein Deficiency, Esophagitis, Colonoscopy, and Gastrostomy.

      Experienced in Toxic Megacolon
      Gastroenterology
      Experienced in Toxic Megacolon
      Gastroenterology

      GI Partners Of Illinois, LLC

      9921 Southwest Hwy, 
      Oak Lawn, IL 
      Languages Spoken:
      English
      Offers Telehealth

      Tamer Atassi is a Gastroenterologist in Oak Lawn, Illinois. Dr. Atassi is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Acute Pancreatitis, Intestinal Cancer, Swallowing Difficulty, Hemorrhoidectomy, and Gastrectomy.

      Experienced in Toxic Megacolon
      Gastroenterology
      Experienced in Toxic Megacolon
      Gastroenterology

      Lutheran General Hospital

      1775 Dempster St, 
      Park Ridge, IL 
      Languages Spoken:
      English

      Eli Ehrenpreis is a primary care provider, practicing in Gastroenterologist in Park Ridge, Illinois. Dr. Ehrenpreis is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Sclerosing Mesenteritis, Necrosis, Viral Gastroenteritis, Colonoscopy, and Endoscopy.

      Advanced in Toxic Megacolon
      Gastroenterology
      Advanced in Toxic Megacolon
      Gastroenterology

      Office

      5841 S Maryland Ave Rm M226, 
      Chicago, IL 
      Languages Spoken:
      English

      Frank Hoentjen is a Gastroenterologist in Chicago, Illinois. Dr. Hoentjen is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Viral Gastroenteritis, Colitis, Crohn's Disease, Colonoscopy, and Endoscopy.

      Advanced in Toxic Megacolon
      Gastroenterology
      Advanced in Toxic Megacolon
      Gastroenterology

      Illinois Gastroenterology Institute PLLC

      1001 Main St Ste 500A, 
      Peoria, IL 
      Languages Spoken:
      English

      Terry Baldwin is a Gastroenterologist in Peoria, Illinois. Dr. Baldwin is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Crohn's Disease, Toxic Megacolon, Barrett Esophagus, Endoscopy, and Gastrectomy.

      Advanced in Toxic Megacolon
      Gastroenterology
      Advanced in Toxic Megacolon
      Gastroenterology

      Loyola University Medical Center

      6800 N Frontage Rd, 
      Burr Ridge, IL 
      Languages Spoken:
      English
      Offers Telehealth

      Dejan Micic is a Gastroenterologist in Burr Ridge, Illinois. Dr. Micic is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Ulcerative Colitis, Viral Gastroenteritis, Short Bowel Syndrome, Endoscopy, and Colonoscopy.

      Advanced in Toxic Megacolon
      Pediatric Gastroenterology
      Advanced in Toxic Megacolon
      Pediatric Gastroenterology

      Rush University Medical Center

      1725 W Harrison St, 
      Chicago, IL 
      Languages Spoken:
      English
      Offers Telehealth

      Randolph Mcconnie is a Pediatric Gastroenterologist in Chicago, Illinois. Dr. Mcconnie is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Toxic Megacolon, Fecal Impaction, Colitis, Viral Gastroenteritis, and Colonoscopy.

      Advanced in Toxic Megacolon
      Internal Medicine
      Advanced in Toxic Megacolon
      Internal Medicine

      Osf Saint Francis-Radiation Oncology

      530 NE Glen Oak Ave, 
      Peoria, IL 
      Experience:
      17+ years
      Languages Spoken:
      English

      Tulika Chatterjee is a primary care provider, practicing in Internal Medicine in Peoria, Illinois. Dr. Chatterjee has been practicing medicine for over 17 years and is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. Her top areas of expertise are Myositis, COVID-19, Severe Acute Respiratory Syndrome (SARS), Vitrectomy, and Endoscopy.

      Advanced in Toxic Megacolon
      Gastroenterology
      Advanced in Toxic Megacolon
      Gastroenterology

      University Of Chicago Physicians Group

      180 Harvester Dr Ste 110, 
      Burr Ridge, IL 
      Languages Spoken:
      English

      Jacob Ollech is a Gastroenterologist in Burr Ridge, Illinois. Dr. Ollech is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Viral Gastroenteritis, Colitis, Radiation Enteritis, Ileostomy, and Endoscopy.

      Advanced in Toxic Megacolon
      General Surgery
      Advanced in Toxic Megacolon
      General Surgery
      251 E Huron St, 
      Chicago, IL 
      Languages Spoken:
      English

      Marjorie Liggett is a General Surgeon in Chicago, Illinois. Dr. Liggett is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. Her top areas of expertise are Toxic Megacolon, Traumatic Brain Injury, Ileostomy, and Gallbladder Removal.

      Anna Tyson
      Experienced in Toxic Megacolon
      General Surgery
      Experienced in Toxic Megacolon
      General Surgery

      Endeavor Health Medical Group

      9650 Gross Point Rd., Suite 3900, 
      Skokie, IL 
      Languages Spoken:
      English

      Anna Frances Tyson, MD, a gastrointestinal and general surgeon at Endeavor Health, performs surgical procedures to treat conditions affecting the digestive tract and abdominal organs. Dr. Tyson works with patients to determine the best surgical approach and provides care before, during and after surgery. Dr. Tyson is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. Her top areas of expertise are Ogilvie Syndrome, Retroperitoneal Inflammation, Cholecystitis, Small Bowel Resection, and Gallbladder Removal.

      Experienced in Toxic Megacolon
      Internal Medicine
      Experienced in Toxic Megacolon
      Internal Medicine

      Medical Arts Associates LTD.

      600 John Deere Rd Ste 200, 
      Moline, IL 
      Languages Spoken:
      English

      Ahmed Khalafallah is a primary care provider, practicing in Internal Medicine in Moline, Illinois. Dr. Khalafallah is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Lung Metastases, COVID-19, Multisystem Inflammatory Syndrome in Children (MIS-C), Endoscopy, and Ureteroscopy.

      Experienced in Toxic Megacolon
      Internal Medicine
      Experienced in Toxic Megacolon
      Internal Medicine

      Osf Saint Francis-Radiation Oncology

      530 NE Glen Oak Ave, 
      Peoria, IL 
      Experience:
      17+ years
      Languages Spoken:
      English

      Moni Roy is a primary care provider, practicing in Internal Medicine in Peoria, Illinois. Dr. Roy has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. Her top areas of expertise are Subareolar Abscess, Sepsis, Septic Arthritis, Endoscopy, and Ureteroscopy.

      Experienced in Toxic Megacolon
      Internal Medicine
      Experienced in Toxic Megacolon
      Internal Medicine

      Northwestern Internal Medicine, Endocrinology, And Geriatrics-Deerfield

      350 S Waukegan Rd Ste 200, 
      Deerfield, IL 
      Languages Spoken:
      English

      Victor Levitan is a primary care provider, practicing in Internal Medicine in Deerfield, Illinois. Dr. Levitan is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Chronic Cough, Vertigo, Empyema, and Fainting.

      Experienced in Toxic Megacolon
      General Surgery
      Experienced in Toxic Megacolon
      General Surgery

      Swedishamerican Hospital

      6824 Newburg Rd, Sa Valley, 
      Rockford, IL 
      Languages Spoken:
      English
      Accepting New Patients

      Jason Klovning is a General Surgeon in Rockford, Illinois. Dr. Klovning is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Stomach Cancer, Gallstones, Choledocholithiasis, Hernia Surgery, and Gastrostomy. Dr. Klovning is currently accepting new patients.

      Experienced in Toxic Megacolon
      Bariatric Medicine
      Experienced in Toxic Megacolon
      Bariatric Medicine

      Blessing Hospital

      1107 College Ave, 
      Quincy, IL 
      Languages Spoken:
      English

      Fernando Bonanni is a Bariatric Medicine provider in Quincy, Illinois. Dr. Bonanni is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Obesity, Obesity in Children, Heartburn, Sleeve Gastrectomy, and Gastrectomy.

      Experienced in Toxic Megacolon
      Gastroenterology
      Experienced in Toxic Megacolon
      Gastroenterology

      Loyola University Medical Center

      2160 S 1st Ave, 
      Maywood, IL 
      Languages Spoken:
      English
      Offers Telehealth

      Amar Naik is a Gastroenterologist in Maywood, Illinois. Dr. Naik is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. His top areas of expertise are Ulcerative Colitis, Crohn's Disease, Viral Gastroenteritis, Endoscopy, and Gastrectomy.

      Showing 1-20 of 20

      Last Updated: 02/22/2026

      What is the definition of Toxic Megacolon?

      Toxic megacolon occurs when swelling and inflammation spread into the deeper layers of your colon. As a result, the colon stops working and widens (dilates). In severe cases, the colon may rupture.

      When should I see a Toxic Megacolon doctor in Illinois, US?

      There are various reasons why you may want to see a specialist, such as: 

      • Your primary care provider recommends it. 
      • Your condition requires expert knowledge and specialized care. 
      • Your symptoms persist or worsen despite treatment. 
      • You need specialized testing or procedures. 
      • You want a second opinion.  

      What should I consider when choosing a Toxic Megacolon doctor in Illinois, US?

      It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

      How does MediFind rank Toxic Megacolon doctors in Illinois, US?

      MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

      What types of insurance are accepted by Toxic Megacolon doctors in Illinois, US?

      Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

      How can I book an appointment online with a Toxic Megacolon doctor in Illinois, US?

      MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the Toxic Megacolon doctor search results page. 

      Why is it important to get a second opinion from a different Toxic Megacolon doctor?

      Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

      How can I prepare for my appointment with a Toxic Megacolon doctor in Illinois, US?

      Prepare for your appointment by gathering the following items: 

      • Copies of medical records (dating back at least one year) 
      • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
      • Family history of disease 
      • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
      • Allergies to medications, food, latex, insects, etc.  
      • List of questions and concerns 
      • Your insurance card 

      You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

      What questions should I ask my Toxic Megacolon doctor?

      Here are some sample questions: 

      • Can you explain in simple terms what this condition is and how it’s treated? 
      • What symptoms or side effects should I watch for? 
      • What tests will be involved, and when can I expect results? 
      • Are there other specialists I need to see? 
      • What’s the best way to reach you if I have follow-up questions? 

      How can I learn about the latest clinical trials and research advances my Toxic Megacolon doctor may know about?

      MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

      MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

      Can I filter my search to show male or female Toxic Megacolon doctors in Illinois, US?

      Look for the filter feature on the left side of the Toxic Megacolon doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

      Can I filter my search to find a Toxic Megacolon doctor that offers video calls?

      Look for the filter feature on the left-side of the Toxic Megacolon doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

      Reviewed on: 11/11/24  

      By: MediFind Medical Staff 

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