The 20 Best Toxic Megacolon Doctors Near Me in Chicago, IL

Find the Top Toxic Megacolon Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 21 doctor with experience in Toxic Megacolon near Chicago, IL. Of these, 14 are Experienced and 7 are Advanced.

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21 providers found
    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 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.

    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 practicing medicine in Northbrook, Illinois. Dr. Chiao is rated as an Experienced 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 Irritable Bowel Syndrome (IBS), Heartburn, Benign Esophageal Stricture, Colonoscopy, and Gastrectomy. Dr. Chiao is board certified in American Board Of Internal Medicine.

    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. She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Ogilvie Syndrome, Retroperitoneal Inflammation, Cholecystitis, Small Bowel Resection, and Gallbladder Removal. Dr. Tyson is board certified in American Board Of Surgery.

    Learn about our expert tiers
    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 practicing medicine in Chicago, Illinois. Dr. Venetos is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 49 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Protein Deficiency, Esophagitis, Colonoscopy, and Gastrostomy. Dr. Venetos is board certified in American Board Of Internal Medicine.

    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 practicing medicine in Oak Lawn, Illinois. Dr. Atassi is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 61 other conditions, according to our data. His clinical expertise encompasses Acute Pancreatitis, Intestinal Cancer, Swallowing Difficulty, Hemorrhoidectomy, and Gastrectomy. Dr. Atassi is board certified in American Board Of Internal Medicine, Gastroenterology.

    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 practicing medicine in Chicago, Illinois. Dr. Hoentjen is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Viral Gastroenteritis, Colitis, Crohn's Disease, Endoscopy, and Colonoscopy.

    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 practicing medicine in Peoria, Illinois. Dr. Baldwin 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, 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 practicing medicine in Burr Ridge, Illinois. Dr. Micic is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses 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 practicing medicine in Chicago, Illinois. Dr. Mcconnie is rated as an Advanced 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, 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. She has been practicing medicine for over 17 years. Dr. Chatterjee is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Myositis, COVID-19, Severe Acute Respiratory Syndrome (SARS), Vitrectomy, and Endoscopy.

    Advanced in Toxic Megacolon
    General Surgery
    Advanced in Toxic Megacolon
    General Surgery

    Northwestern Memorial Hospital

    251 E Huron St, 
    Chicago, IL 
    Languages Spoken:
    English

    Marjorie Liggett is a General Surgeon practicing medicine in Chicago, Illinois. Dr. Liggett 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, Traumatic Brain Injury, Ileostomy, and Gallbladder Removal.

    Advanced in Toxic Megacolon
    General Surgery
    Advanced in Toxic Megacolon
    General Surgery

    Western Illinois Surgical Associates S.C.

    515 E Grant St Ste 211, 
    Macomb, IL 
    Languages Spoken:
    English

    James Gonzales is a General Surgeon practicing medicine in Macomb, Illinois. Dr. Gonzales is rated as an Advanced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Ogilvie Syndrome, Hernia, Gallbladder Disease, Endoscopy, and Hernia Surgery.

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

    OSF Medical Group - Skilled Nursing

    2265 West Altorfer Drive, 
    Peoria, IL 
    Experience:
    17+ years
    Languages Spoken:
    English, Hindi

    Moni Roy is a primary care provider, practicing in Internal Medicine in Peoria, Illinois. She has been practicing medicine for over 17 years. Dr. Roy is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. She is also highly rated in 9 other conditions, according to our data. Her clinical expertise encompasses Subareolar Abscess, Septic Arthritis, Infectious Arthritis, Endoscopy, and Ureteroscopy. Dr. Roy is board certified in American Board Of Internal Medicine.

    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. He is also highly rated in 21 other conditions, according to our data. His clinical expertise encompasses Lung Metastases, Multisystem Inflammatory Syndrome in Children (MIS-C), COVID-19, 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. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Chronic Cough, Vertigo, Empyema, and Fainting.

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

    Lundholm Surgical Group LTD

    1340 Charles St Ste 100, 
    Rockford, IL 
    Languages Spoken:
    English

    Jason Klovning is a General Surgeon practicing medicine in Rockford, Illinois. Dr. Klovning is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Stomach Cancer, Gallstones, Choledocholithiasis, Hernia Surgery, and Gastrostomy.

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

    Naperville Surgical Associates Ltd

    10 Martin Ave Ste 225, 
    Naperville, IL 
    Languages Spoken:
    English
    Offers Telehealth

    Vicente Arcos is a General Surgeon practicing medicine in Naperville, Illinois. Dr. Arcos is rated as an Experienced provider by MediFind in the treatment of Toxic Megacolon. His clinical expertise encompasses Colorectal Cancer, Lynch Syndrome, Familial Colorectal Cancer, Hemorrhoidectomy, and Hernia Surgery.

    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 practicing medicine in Quincy, Illinois. Dr. Bonanni is rated as an Experienced 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 Obesity, Obesity in Children, Heartburn, Sleeve Gastrectomy, 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. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Sclerosing Mesenteritis, Necrosis, Viral Gastroenteritis, Colonoscopy, and Endoscopy.

    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 practicing medicine in Maywood, Illinois. Dr. Naik 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 Ulcerative Colitis, Crohn's Disease, Viral Gastroenteritis, Endoscopy, and Kidney Transplant.

    Showing 1-20 of 21

    Last Updated: 04/28/2026

    When should I see a Toxic Megacolon doctor near Chicago, IL?

    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 near Chicago, IL?

    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 near Chicago, IL?

    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 near Chicago, IL?

    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 near Chicago, IL?

    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 near Chicago, IL?

    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 near Chicago, IL?

    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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