The 20 Best Gastrointestinal Fistula Doctors Near Me in Upland, CA

Find the Top Gastrointestinal Fistula Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 31 doctor with experience in Gastrointestinal Fistula near Upland, CA. Of these, 25 are Experienced, 5 are Advanced and 1 are Distinguished.

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31 providers found
    Experienced in Gastrointestinal Fistula
    General Surgery
    Experienced in Gastrointestinal Fistula
    General Surgery

    Upland Surgical Associates

    901 San Bernardino Rd, 
    Upland, CA 
     (0.6 miles away)
    Experience:
    28+ years
    Languages Spoken:
    English

    Donna Dudziak is a General Surgeon practicing medicine in Upland, California. She has been practicing medicine for over 28 years. Dr. Dudziak is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. She is also highly rated in 12 other conditions, according to our data. Her clinical expertise encompasses Hernia, Gallbladder Disease, Cholecystitis, Hernia Surgery, and Colostomy. Dr. Dudziak is board certified in American Board Of Surgery.

    Experienced in Gastrointestinal Fistula
    General Surgery
    Experienced in Gastrointestinal Fistula
    General Surgery

    Upland Surgical Associates

    811 E 11th St, 
    Upland, CA 
     (0.6 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English

    Adam Sugihara is a General Surgeon practicing medicine in Upland, California. He has been practicing medicine for over 17 years. Dr. Sugihara is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Cellulitis, Cholecystitis, Retroperitoneal Inflammation, Hernia Surgery, and Gastrostomy. Dr. Sugihara is board certified in American Board Of Surgery.

    Experienced in Gastrointestinal Fistula
    General Surgery
    Experienced in Gastrointestinal Fistula
    General Surgery

    Upland Surgical Associates

    510 N 13th Ave, 
    Upland, CA 
     (0.9 miles away)
    Experience:
    30+ years
    Languages Spoken:
    English

    Bryce Beseth is a General Surgeon practicing medicine in Upland, California. He has been practicing medicine for over 30 years. Dr. Beseth is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 39 other conditions, according to our data. His clinical expertise encompasses Gangrene, Choledocholithiasis, Necrosis, Hernia Surgery, and Colostomy. Dr. Beseth is board certified in American Board Of Surgery.

    Learn about our expert tiers
    Experienced in Gastrointestinal Fistula
    Surgical Oncology
    Experienced in Gastrointestinal Fistula
    Surgical Oncology

    City Of Hope Upland

    1100 San Bernardino Rd Ste 1100, 
    Upland, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Bradford Kim is a Surgical Oncologist practicing medicine in Upland, California. Dr. Kim is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Stromal Tumor, Stomach Cancer, Pancreatic Cancer, Hepatectomy, and Pancreaticoduodenectomy.

    Experienced in Gastrointestinal Fistula
    Internal Medicine
    Experienced in Gastrointestinal Fistula
    Internal Medicine

    Premiere Medical Group Of California

    901 San Bernardino Rd Ste 101, 
    Upland, CA 
     (0.9 miles away)
    Languages Spoken:
    English

    Ythanh Nguyen is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. She is also highly rated in 26 other conditions, according to our data. Her clinical expertise encompasses Peptic Ulcer, Sepsis, Necrosis, Endoscopy, and Colonoscopy.

    Experienced in Gastrointestinal Fistula
    General Surgery
    Experienced in Gastrointestinal Fistula
    General Surgery

    ABC Surgery

    557 N Central Ave, 
    Upland, CA 
     (0.9 miles away)
    Languages Spoken:
    English

    Farabi Hussain is a General Surgeon practicing medicine in Upland, California. Dr. Hussain is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Hypovolemic Shock, Ogilvie Syndrome, Colostomy, and Hernia Surgery.

    Experienced in Gastrointestinal Fistula
    General Surgery
    Experienced in Gastrointestinal Fistula
    General Surgery

    Anthony S. Oh, MD A Medical Corporation

    4950 San Bernardino St, 
    Montclair, CA 
     (3.1 miles away)
    Experience:
    30+ years
    Languages Spoken:
    English

    Anthony Oh is a General Surgeon practicing medicine in Montclair, California. He has been practicing medicine for over 30 years. Dr. Oh is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Gallstones, Choledocholithiasis, Gallbladder Disease, Colostomy, and Gastrostomy. Dr. Oh is board certified in American Board Of Surgery.

    Experienced in Gastrointestinal Fistula
    Gastroenterology
    Experienced in Gastrointestinal Fistula
    Gastroenterology

    Carlos R. Vigil DO A Professional Corp.

    7974 Haven Ave Ste 210, 
    Rancho Cucamonga, CA 
     (4.0 miles away)
    Languages Spoken:
    English

    Hussein Abidali is a Gastroenterologist practicing medicine in Rancho Cucamonga, California. Dr. Abidali is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 44 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Hiatal Hernia, Congenital Diaphragmatic Hernia, Endoscopy, and Gastrostomy.

    Experienced in Gastrointestinal Fistula
    General Surgery
    Experienced in Gastrointestinal Fistula
    General Surgery

    Faculty Physicians And Surgeons Of Llusm

    8599 Haven Ave, Suite 102and210, 
    Rancho Cucamonga, CA 
     (4.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jazmin Cole is a General Surgeon practicing medicine in Rancho Cucamonga, California. Dr. Cole is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Hernia, Umbilical Hernia, Gastrointestinal Fistula, Lump in the Abdomen, and Gastrostomy.

    Experienced in Gastrointestinal Fistula
    Intensive Care Medicine
    Experienced in Gastrointestinal Fistula
    Intensive Care Medicine

    Jagtar Dhadwal M.D. Inc.

    160 E Artesia St Ste 310, 
    Pomona, CA 
     (5.2 miles away)
    Languages Spoken:
    English

    Onaona Gurney is an Intensive Care Medicine provider practicing medicine in Pomona, California. Dr. Gurney is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. She is also highly rated in 6 other conditions, according to our data. Her clinical expertise encompasses Chronic Subdural Hematoma, Gastrointestinal Perforation, Delirium, Orchiectomy, and Hip Replacement.

    Experienced in Gastrointestinal Fistula
    General Surgery
    Experienced in Gastrointestinal Fistula
    General Surgery

    Inland Valley Hematology Oncology Associates

    1910 Royalty Dr, 
    Pomona, CA 
     (5.7 miles away)
    Languages Spoken:
    English

    Sana Qureshi is a General Surgeon practicing medicine in Pomona, California. Dr. Qureshi is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Hernia, Juvenile Angiofibroma, Gastrointestinal Perforation, and Pilonidal Sinus Disease.

    Advanced in Gastrointestinal Fistula
    Gastroenterology | General Surgery
    Advanced in Gastrointestinal Fistula
    Gastroenterology | General Surgery

    Vinod Garg, MD Inc

    250 W Bonita Ave, 
    Pomona, CA 
     (5.9 miles away)
    Experience:
    47+ years
    Languages Spoken:
    English

    Vinod Garg is a General Surgeon and a Gastroenterologist practicing medicine in Pomona, California. He has been practicing medicine for over 47 years. Dr. Garg is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Gangrene, Choledocholithiasis, Cellulitis, Hernia Surgery, and Gastrostomy. Dr. Garg is board certified in American Board Surgery.

    Distinguished in Gastrointestinal Fistula
    Gastroenterology | Internal Medicine
    Distinguished in Gastrointestinal Fistula
    Gastroenterology | Internal Medicine

    Citrus Valley Gastroenterology A California Medical Corporation

    415 W Route 66, 
    Glendora, CA 
     (12.9 miles away)
    Experience:
    23+ years
    Languages Spoken:
    English
    Offers Telehealth

    Patrick Truong is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Glendora, California. He has been practicing medicine for over 23 years. Dr. Truong is rated as a Distinguished provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 61 other conditions, according to our data. His clinical expertise encompasses Painful Swallowing, Swallowing Difficulty, Gastrointestinal Bleeding, Gastrectomy, and Gastrostomy. Dr. Truong is board certified in American Board Of Internal Medicine.

    Experienced in Gastrointestinal Fistula
    Family Medicine
    Experienced in Gastrointestinal Fistula
    Family Medicine

    Office

    1770 N Orange Grove Ave Ste 101, 
    Pomona, CA 
     (5.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    James Meyers is a primary care provider, practicing in Family Medicine in Pomona, California. Dr. Meyers is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Obesity, Sepsis, Glucocorticoid-Remediable Aldosteronism, and Endoscopy.

    Experienced in Gastrointestinal Fistula
    Internal Medicine
    Experienced in Gastrointestinal Fistula
    Internal Medicine

    Platinum Digestive Health

    250 W Bonita Ave, 
    Pomona, CA 
     (5.9 miles away)
    Experience:
    19+ years
    Languages Spoken:
    English

    Bhaveshkumar Patel is an Internal Medicine provider practicing medicine in Pomona, California. He has been practicing medicine for over 19 years. Dr. Patel is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 69 other conditions, according to our data. His clinical expertise encompasses Swallowing Difficulty, Painful Swallowing, Bile Duct Obstruction, Endoscopy, and Gastrostomy. Dr. Patel is board certified in American Board Of Internal Medicine.

    Experienced in Gastrointestinal Fistula
    General Surgery
    Experienced in Gastrointestinal Fistula
    General Surgery

    Willow Partners Medical Corp

    155 W Willow St, 
    Pomona, CA 
     (6.1 miles away)
    Languages Spoken:
    English

    Autar Wali is a General Surgeon practicing medicine in Pomona, California. Dr. Wali is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Cellulitis, Hernia, Gallbladder Disease, Gastrectomy, and Gastrostomy.

    Experienced in Gastrointestinal Fistula
    Internal Medicine
    Experienced in Gastrointestinal Fistula
    Internal Medicine

    Chino Valley Family Physicians A Medical Group

    13193 Central Ave Ste 100, 
    Chino, CA 
     (6.8 miles away)
    Languages Spoken:
    English

    Ali Etemadian is a primary care provider, practicing in Internal Medicine in Chino, California. Dr. Etemadian is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses End-Stage Renal Disease (ESRD), Renovascular Hypertension, COVID-19, Gastrostomy, and Endoscopy.

    Experienced in Gastrointestinal Fistula
    Internal Medicine
    Experienced in Gastrointestinal Fistula
    Internal Medicine

    Hussain Al-Darsani M.D. A Professional Corp.

    5562 Philadelphia St Ste 203, 
    Chino, CA 
     (6.8 miles away)
    Languages Spoken:
    English

    Hussain Al is an Internal Medicine provider practicing medicine in Chino, California. Dr. Al is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Gastroesophageal Reflux Disease (GERD), Gastritis, Gastrostomy, and Gastrectomy.

    Experienced in Gastrointestinal Fistula
    Experienced in Gastrointestinal Fistula
    15855 Pomona Rincon Road, 
    Chino Hills, CA 
     (10.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Nikolai Bildzukewicz is a General Surgeon practicing medicine in Chino Hills, California. Dr. Bildzukewicz is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Hiatal Hernia, Hernia, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Gastrectomy. Dr. Bildzukewicz is currently accepting new patients.

    Advanced in Gastrointestinal Fistula
    Gastroenterology | Internal Medicine
    Advanced in Gastrointestinal Fistula
    Gastroenterology | Internal Medicine

    Citrus Valley Gastroenterology A California Medical Corporation

    415 W Route 66, 
    Glendora, CA 
     (12.9 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English
    Offers Telehealth

    Ankush Sharma is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Glendora, California. He has been practicing medicine for over 18 years. Dr. Sharma is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 64 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Swallowing Difficulty, Painful Swallowing, Colonoscopy, and Gastrectomy. Dr. Sharma is board certified in American Board Of Internal Medicine.

    Showing 1-20 of 31

    Last Updated: 04/28/2026

    What is the definition of Gastrointestinal Fistula?

    A gastrointestinal fistula is an abnormal opening in the stomach or intestines that allows the contents to leak to another part of the body.

    • Leaks that go through to a part of the intestines are called entero-enteral fistulas.
    • Leaks that go through to the skin are called enterocutaneous fistulas.
    • Other organs can be involved, such as the bladder, vagina, anus, and colon.

    When should I see a Gastrointestinal Fistula doctor near Upland, CA?

    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 Gastrointestinal Fistula doctor near Upland, CA?

    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 Gastrointestinal Fistula doctors near Upland, CA?

    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 Gastrointestinal Fistula doctors near Upland, CA?

    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 Gastrointestinal Fistula doctor near Upland, CA?

    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 Gastrointestinal Fistula doctor search results page. 

    Why is it important to get a second opinion from a different Gastrointestinal Fistula 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 Gastrointestinal Fistula doctor near Upland, CA?

    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 Gastrointestinal Fistula 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 Gastrointestinal Fistula 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 Gastrointestinal Fistula doctors near Upland, CA?

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

    Look for the filter feature on the left-side of the Gastrointestinal Fistula 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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