The 20 Best Diarrhea Doctors Near Me in Madison, WI

Find the Top Diarrhea Experts and Specialists

The 20 Best Diarrhea Doctors near Madison, WI

Last Updated: 02/22/2026

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MediFind found 96 doctor with experience in Diarrhea near Madison, WI. Of these, 95 are Experienced and 1 are Advanced.

Location
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96 providers found
    Experienced in Diarrhea
    Experienced in Diarrhea

    University Hospital

    600 Highland Ave, 
    Madison, WI 
     (1.6 miles away)
    Languages Spoken:
    English

    Kyle Schoppel is a Pediatrics provider in Madison, Wisconsin. Dr. Schoppel is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Genetic Epilepsy with Febrile Seizures Plus (GEFS+), Infantile Pyloric Stenosis, Aseptic and Alopecic Nodules of Scalp (AANS), and Asthma in Children.

    Amy Daley
    Experienced in Diarrhea
    Geriatrics | Internal Medicine
    Experienced in Diarrhea
    Geriatrics | Internal Medicine
    1211 Fish Hatchery Road, 
    Madison, WI 
     (0.3 miles away)
    Languages Spoken:
    English

    Amy Daley is a board certified internal medicine physician. She obtained her undergraduate degree from the University of Notre Dame in South Bend, IN and earned her medical degree from the University of Nebraska Medical Center-Omaha. She completed her internship and residency at the University of Wisconsin Hospitals and Clinics-Madison. Daley has a specific interest in geriatric medicine.Dr. Daley is board certified by the American Board of Internal Medicine. Dr. Daley is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Sitosterolemia, Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), and Diabetic Nephropathy.

    Orest Kostelyna
    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    SSM Health Dean Medical Group

    1211 Fish Hatchery Road, 
    Madison, WI 
     (0.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Dr. Kostelyna is board certified in internal medicine. He obtained his undergraduate degree from the University of Illinois and received his medical degree from the Loyola University in Chicago. He also completed his internship and residency at Loyola University. Trained in internal medicine, Dr. Kostelyna primarily cares for the geriatric population. He specializes in geriatrics, nursing home care, and hospice care. He is also a Medical Director for SSM Health at Home Hospice Services. In his time away from work, Dr. Kostelyna enjoys spending time with his family. He also enjoys physical fitness, travel, stocks, and the financial markets. Dr. Kostelyna is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Monoclonal Gammopathy of Undetermined Significance (MGUS), Interstitial Lung Disease, Acute Interstitial Pneumonia, and Boils.

    Learn about our expert tiers
    Larry Ozers
    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    SSM Health Dean Medical Group

    1211 Fish Hatchery Road, 
    Madison, WI 
     (0.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Lawrence Ozers is a board certified internal medicine physician. He obtained his undergraduate degree from Northwestern University in Evanston, IL and earned his medical degree and completed his internship at the University of Chicago in Chicago, IL. He completed his residency at the University of Wisconsin Hospitals and Clinics-Madison. Ozers' practice is focused on preventative medicine. Dr. Ozers is board certified by the American Board of Internal Medicine. In his free time, Dr. Ozers enjoys spending time with family, gardening, birding, and hiking. Dr. Ozers is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Diabetic Nephropathy, Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, and Anemia.

    Peggy Simpson
    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    SSM Health Dean Medical Group

    1211 Fish Hatchery Road, 
    Madison, WI 
     (0.3 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Offers Telehealth

    Peggy Simpson is board certified by the American Board of Internal Medicine. She obtained her undergraduate degree from Luther College in Decorah, IA and earned her medical degree from the University of Nebraska College of Medicine in Omaha, NE. She completed her internship and residency at the University of Nebraska Medical Center-Omaha. Dr. Simpson's practice is focused on general internal medicine with a specific interest in women's health. In her free time, Dr. Simpson enjoys hiking, knitting, and cooking. Dr. Simpson is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Sitosterolemia, Type 2 Diabetes (T2D), High Cholesterol, and Low Sodium Level.

    Michael Allan
    Experienced in Diarrhea
    Gastroenterology | Internal Medicine
    Experienced in Diarrhea
    Gastroenterology | Internal Medicine

    SSM Health Dean Medical Group

    700 S. Park St., 
    Madison, WI 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Michael Allan is board certified in gastroenterology and internal medicine. He obtained his undergraduate degree from the University of Wisconsin in Madison, WI and earned his medical degree from the University of Wisconsin School of Medicine and Public Health-Madison. He completed his residency in internal medicine at the University of Michigan Medical Center in Ann Arbor, MI and his fellowship in gastroenterology at Duke University in Durham, NC. Allan's practice is focused on colonoscopies, gastroscopies, ERCP, hepatitis, inflammatory bowel disease, irritable bowel syndrome, and pancreatobiliary disease. Dr. Allan is a member of the American Gastroenterological Society and the American College of Gastroenterology. In his free time, Dr. Allan enjoys travel, running, and home improvement. Dr. Allan is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Juvenile Polyposis Syndrome, Cronkhite-Canada Disease, Attenuated Familial Adenomatous Polyposis, Endoscopy, and Colonoscopy.

    Alexander Larson
    Experienced in Diarrhea
    Gastroenterology | Internal Medicine
    Experienced in Diarrhea
    Gastroenterology | Internal Medicine

    SSM Health Dean Medical Group

    700 S. Park St., 
    Madison, WI 
     (0.9 miles away)
    Languages Spoken:
    English

    "Alexander Larson is board certified in gastroenterology and internal medicine. He obtained his undergraduate degree from the University of Wisconsin-Madison and his master's degree from Northern Michigan University in Marquette, MI. He earned his medical degree from the Medical College of Wisconsin-Milwaukee. Dr. Larson completed his internship and residency in internal medicine and his fellowship in gastroenterology at the University of Michigan Hospital in Ann Arbor, MI. He also completed his fellowship in advanced endoscopy at Mayo Clinic in Rochester, MN. Larson's practice is focused on pancreatic cancer and cysts, cholangiocarcinoma, diseases of the biliary and pancreatic ducts, and endoscopic ultrasounds. Dr. Larson is a member of the American College of Gastroenterology, the American Gastroenterological Association, and the American Society of Gastrointestinal Endoscopy. In his free time, Dr. Larson enjoys CrossFit, barefoot waterskiing, bass guitar, and mountain biking. *Every member of the health care team, from support staff, to nurses, to physician and, most importantly, the patients and their families, are vital to providing and receiving exceptional care. Keeping everyone in the loop and showing respect is how we can achieve a diagnosis and treat the patient in the most effective way possible. Education is key as well as when the patients understand their medical condition or diagnosis, the sooner they can """"own it"""" and take charge.* - Alexander Larson, MD". Dr. Larson is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Familial Pancreatic Cancer, Gardner Syndrome, Pancreatic Cancer, Ileostomy, and Endoscopy.

    Naree Whang
    Experienced in Diarrhea
    Gastroenterology | Internal Medicine
    Experienced in Diarrhea
    Gastroenterology | Internal Medicine

    SSM Health Dean Medical Group

    700 S. Park St., 
    Madison, WI 
     (0.9 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Offers Telehealth

    Naree Whang is an Internal Medicine specialist and a Gastroenterologist in Madison, Wisconsin. Dr. Whang has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Primary Biliary Cholangitis, Familial Adenomatous Polyposis, Reynolds Syndrome, Endoscopy, and Gastrectomy.

    Andrew Walker
    Experienced in Diarrhea
    Gastroenterology | Internal Medicine
    Experienced in Diarrhea
    Gastroenterology | Internal Medicine

    SSM Health Dean Medical Group

    700 S. Park St., 
    Madison, WI 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Andrew Walker is an Internal Medicine specialist and a Gastroenterologist in Madison, Wisconsin. Dr. Walker is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Familial Pancreatic Cancer, Crohn's Disease, Familial Adenomatous Polyposis, Endoscopy, and Gastrectomy.

    Jason Gonzaga
    Experienced in Diarrhea
    Gastroenterology | Internal Medicine
    Experienced in Diarrhea
    Gastroenterology | Internal Medicine

    SSM Health Dean Medical Group

    700 S. Park St., 
    Madison, WI 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jason Gonzaga is an Internal Medicine specialist and a Gastroenterologist in Madison, Wisconsin. Dr. Gonzaga is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Alcoholic Cirrhosis, Ascites, Familial Pancreatic Cancer, Endoscopy, and Colonoscopy.

    Abby Lochmann
    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology

    SSM Health Dean Medical Group

    700 S. Park St., 
    Madison, WI 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Abby Lochmann-Bailkey is a fellowship-trained gastroenterology physician board certified in internal medicine. She obtained her undergraduate degree from the University of Wisconsin-Madison and earned her medical degree from the Medical College of Wisconsin in Wauwatosa, WI. She completed her residency in internal medicine at the University of Wisconsin Hospital and Clinics-Madison and her fellowship in gastroenterology at the University of Cincinnati Medical Center in Cincinnati, OH. Lochmann-Bailkey's practice is focused on women's health, motility, and inflammatory bowel disease. Dr. Lochmann-Bailkey is a member of the American Gastroenterological Association, the American Association for the Study of Liver Diseases, the American Neurogastroenterology and Motility Society, and the American College of Gastroenterology. In her free time, Dr. Lochmann-Bailkey enjoys sewing, spending time with her children, and enjoying the outdoors. I strive to listen to my patients and identify what most concerns them. From there, we work together to address their concerns. - Abby Lochmann-Bailkey, MD. Dr. Lochmann is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Gardner Syndrome, Turcot Syndrome, Familial Adenomatous Polyposis, Endoscopy, and Colonoscopy.

    Geoffrey Dang
    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology

    SSM Health Dean Medical Group

    700 S. Park St., 
    Madison, WI 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    "Geoffrey Dang-Vu is board certified in internal medicine and practicing in gastroenterology. He obtained his undergraduate degree from Washington University in St. Louis, MO and earned his medical degree from Rush Medical College in Chicago, IL. He went on to complete his residency in internal medicine and his fellowship in gastroenterology and hepatology at the Medical College of Wisconsin in Milwaukee, WI. Dr. Dang-Vu's medical interests include Crohn's disease, ulcerative colitis, esophageal motility disorders, gastroesophageal reflux disease, and disorders of defecation. Dr. Dang-Vu is a member of the American Gastroenterological Association and the American Society for Gastrointestinal Endoscopy. In his free time, Dr. Dang-Vu enjoys tennis, soccer, hiking, camping, and cooking. *""I enjoy interacting with my patients and take the time to address their health concerns. Using a holistic approach, I educate them about the condition they are experiencing. We then work together to develop the best care plan possible."" - Geoffrey Dang-Vu, MD*". Dr. Dang is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Turcot Syndrome, Gardner Syndrome, Familial Adenomatous Polyposis, Ulcerative Colitis, and Endoscopy.

    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology

    UW Health Pharmacy Services

    750 University Row, 
    Madison, WI 
     (3.5 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Arnold Wald is a Gastroenterologist in Madison, Wisconsin. Dr. Wald is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Bowel Incontinence, Hemorrhagic Proctocolitis, Ulcerative Colitis, and Crohn's Disease.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Office

    20 S Park St Ste 504, 
    Madison, WI 
     (0.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Elizabeth George is a primary care provider, practicing in Internal Medicine in Madison, Wisconsin. Dr. George is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are X-Linked Hypophosphatemia, Hypophosphatemia, Osteomalacia, and Cirrhosis.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Office

    1102 S Park St Ste 200, 
    Madison, WI 
     (0.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jeremy Smith is a primary care provider, practicing in Internal Medicine in Madison, Wisconsin. Dr. Smith is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Crohn's Disease, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Hypertension.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Dean Health Systems Inc.

    1211 Fish Hatchery Rd, 
    Madison, WI 
     (0.3 miles away)
    Languages Spoken:
    English

    Daniel Staddler is a primary care provider, practicing in Family Medicine in Madison, Wisconsin. Dr. Staddler is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), High Cholesterol, and Sitosterolemia.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Office

    20 S Park St Ste 504, 
    Madison, WI 
     (0.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Joanna Ruchala is a primary care provider, practicing in Internal Medicine in Madison, Wisconsin. Dr. Ruchala is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Milk-Alkali Syndrome, Familial Hypocalciuric Hypercalcemia Type 1, Idiopathic Hypercalciuria, and Hypercalcemia.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    University Of Wisconsin Hospitals & Clinics Authority

    20 S Park St, 
    Madison, WI 
     (0.4 miles away)
    Languages Spoken:
    English

    Deborah Boushea is a primary care provider, practicing in Internal Medicine in Madison, Wisconsin. Dr. Boushea is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Relapsed Refractory Multiple Myeloma (RRMM), Multiple Myeloma, Hypertension, and Familial Hypertension.

    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology

    UnityPoint Health Meriter

    202 S Park St, 
    Madison, WI 
     (0.5 miles away)
    Experience:
    44+ years
    Languages Spoken:
    English

    Gary Griglione is a Gastroenterologist in Madison, Wisconsin. Dr. Griglione has been practicing medicine for over 44 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Barrett Esophagus, Familial Adenomatous Polyposis, Esophagitis, Endoscopy, and Gastrectomy.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    GHC Pharmacy Capitol

    675 W Washington Ave, 
    Madison, WI 
     (0.5 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Deborah Williams is a primary care provider, practicing in Internal Medicine in Madison, Wisconsin. Dr. Williams is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Ballinger-Wallace Syndrome, Myasthenia Gravis, Melorheostosis, and Melorheostosis with Osteopoikilosis.

    Showing 1-20 of 96

    Last Updated: 02/22/2026

    What is the definition of Diarrhea?

    Diarrhea is when you pass loose or watery stool.

    When should I see a Diarrhea doctor near Madison, WI?

    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 Diarrhea doctor near Madison, WI?

    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 Diarrhea doctors near Madison, WI?

    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 Diarrhea doctors near Madison, WI?

    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 Diarrhea doctor near Madison, WI?

    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 Diarrhea doctor search results page. 

    Why is it important to get a second opinion from a different Diarrhea 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 Diarrhea doctor near Madison, WI?

    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 Diarrhea 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 Diarrhea 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 Diarrhea doctors near Madison, WI?

    Look for the filter feature on the left side of the Diarrhea 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 Diarrhea doctor that offers video calls?

    Look for the filter feature on the left-side of the Diarrhea 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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