The 20 Best Toxic Megacolon Doctors Near Me in Illinois, US

Find the Top Toxic Megacolon Experts and Specialists

The 20 Best Toxic Megacolon Doctors in Illinois, US

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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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.

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    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.

    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.

    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
    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
    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
    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.

    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.

    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.

    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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