The 20 Best Colitis Doctors Near Me in Rancho Cucamonga, CA

Find the Top Colitis Experts and Specialists

The 20 Best Colitis Doctors near Rancho Cucamonga, CA

Last Updated: 02/22/2026

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MediFind found 132 doctor with experience in Colitis near Rancho Cucamonga, CA. Of these, 121 are Experienced and 11 are Advanced.

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132 providers found
    Advanced in Colitis
    Gastroenterology
    Advanced in Colitis
    Gastroenterology

    Carlos R. Vigil DO A Professional Corp.

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

    Hussein Abidali is a Gastroenterologist in Rancho Cucamonga, California. Dr. Abidali is rated as an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Gastrointestinal Bleeding, Hiatal Hernia, Congenital Diaphragmatic Hernia, Endoscopy, and Gastrostomy.

    Andrea S. Tieng
    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology

    Andrea S Tieng MD, Inc

    10801 Foothill Blvd, Ste 106, 
    Rancho Cucamonga, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Dr. Andrea Tieng was born and raised in New York City. She graduated Summa Cum Laude from the City University of New York and completed her medical degree at the State University of New York Health Science Center at the SUNY Downstate College of Medicine in Brooklyn, New York.Her internship and residency in Internal Medicine was completed at the Albert Einstein College of Medicine at Long Island Jewish Medical Center in New Hyde Park, New York, where she also fulfilled her Gastroenterology and Hepatology Fellowship.Board Certified by the American Board of Internal Medicine, Dr. Tieng is licensed to practice in both California and New York. She is a member of the American College of Gastroenterology and the American Gastroenterology Association.Prior to founding her own practice in Redlands and San Bernardino, Dr. Tieng worked as a private gastroenterologist at Cedars-Sinai Medical Center in Los Angeles.Dr. Tieng specializes in providing sensitive and compassionate care to women, and delivers personalized care to all patients 18 years and older. Dr. Tieng is a board certified physician who treats patients with gastrointestinal illnesses and liver diseases. She utilizes innovative technology to perform diagnostic and therapeutic procedures of the gastrointestinal tract, including colonoscopy and upper endoscopy. Dr. Tieng is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Diverticular Disease, Familial Adenomatous Polyposis, Gastritis, Gastrectomy, and Endoscopy.

    Advanced in Colitis
    Gastroenterology
    Advanced in Colitis
    Gastroenterology

    Basim Z. Abdelkarim, M.D., Inc.

    1310 San Bernardino Rd, 
    Upland, CA 
     (2.3 miles away)
    Experience:
    27+ years
    Languages Spoken:
    English
    Offers Telehealth

    Basim Abdelkarim is a Gastroenterologist in Upland, California. Dr. Abdelkarim has been practicing medicine for over 27 years and is rated as an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Diverticular Disease, Hemorrhoids, Gastroesophageal Reflux Disease (GERD), Gastrostomy, and Endoscopy.

    Learn about our expert tiers
    Advanced in Colitis
    Family Medicine
    Advanced in Colitis
    Family Medicine

    Ravinder Singh, Md, Inc.

    525 N 13th Ave, 
    Upland, CA 
     (2.4 miles away)
    Experience:
    27+ years
    Languages Spoken:
    English
    Offers Telehealth

    Ravinder Singh is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Singh has been practicing medicine for over 27 years and is rated as an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Milk-Alkali Syndrome, Hypercalcemia, Type 2 Diabetes (T2D), Hormone Replacement Therapy (HRT), and Parathyroidectomy.

    Advanced in Colitis
    Gastroenterology
    Advanced in Colitis
    Gastroenterology

    Ct Hung MD Inc.

    629 N 13th Ave, 
    Upland, CA 
     (2.4 miles away)
    Languages Spoken:
    English

    Chuang-ti Hung is a Gastroenterologist in Upland, California. Dr. Hung is rated as an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Diverticular Disease, Trichohepatoenteric Syndrome, Hemorrhoids, Gastrectomy, and Gastrostomy.

    Advanced in Colitis
    Internal Medicine
    Advanced in Colitis
    Internal Medicine

    Kevin Jenkins, Do, Inc.

    944 W Foothill Blvd, 
    Upland, CA 
     (4.1 miles away)
    Experience:
    53+ years
    Languages Spoken:
    English

    Kevin Jenkins is an Internal Medicine provider in Upland, California. Dr. Jenkins has been practicing medicine for over 53 years and is rated as an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Irritable Bowel Syndrome (IBS), Diverticular Disease, Hemorrhoids, Gastrectomy, and Gastrostomy.

    Namita Mohideen
    Experienced in Colitis
    Experienced in Colitis

    Namita Mohideen MD Inc

    16465 Sierra Lakes Pkwy #115, 
    Fontana, CA 
     (7.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Your child's health is my top priority. Dr. Mohideen is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Food Allergy, Obesity in Children, Otitis, and Candida Infection of the Skin.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Carlos R. Vigil DO A Professional Corp.

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

    Carlos Vigil is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Vigil is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Acute Kidney Failure, Renovascular Hypertension, End-Stage Renal Disease (ESRD), Gastrostomy, and Endoscopy.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Harvey D. Cohen M.D. Inc.

    8330 Red Oak St Ste 201, 
    Rancho Cucamonga, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Harvey Cohen is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Cohen is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Familial Hypertension, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Obesity.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Cucamonga Valley Medical Group

    7777 Milliken Ave Ste 240, 
    Rancho Cucamonga, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Eric Bekemeier is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Bekemeier is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Obesity, Cirrhosis, Familial Combined Hyperlipidemia, and Xanthoma.

    Experienced in Colitis
    Family Medicine | General Practice
    Experienced in Colitis
    Family Medicine | General Practice

    Sandra K Force - Obrowski, MD & Corliss R Shelton, MD

    7777 Milliken Ave Ste 350, 
    Rancho Cucamonga, CA 
     (0.9 miles away)
    Languages Spoken:
    English

    Corliss Shelton is a primary care provider, practicing in Family Medicine and General Practice in Rancho Cucamonga, California. Dr. Shelton is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Type 2 Diabetes (T2D), Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Hypertension.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Aureus Medical Group, Inc.

    7974 Haven Ave, 
    Rancho Cucamonga, CA 
     (0.9 miles away)
    Experience:
    53+ years
    Languages Spoken:
    English
    Offers Telehealth

    Steven Barag is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Barag has been practicing medicine for over 53 years and is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Vitamin D Deficiency, Sciatica, Male Pseudohermaphroditism with Gynecomastia, and Eunuchoidism Familial Hypogonadotropic.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Fagan, John A. Family Practice, Inc.

    10787 Laurel St, 
    Rancho Cucamonga, CA 
     (1.3 miles away)
    Experience:
    40+ years
    Languages Spoken:
    English
    Offers Telehealth

    John Fagan is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Fagan has been practicing medicine for over 40 years and is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Ehlers-Danlos Syndrome (EDS), Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Rancho Cucamonga Medical Offices

    10850 Arrow Rte, 
    Rancho Cucamonga, CA 
     (1.5 miles away)
    Languages Spoken:
    English

    Iyad Hanna is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Hanna is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Colorectal Cancer, Familial Colorectal Cancer, Maturity Onset Diabetes of the Young, and Chronic Cough.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Rapid Care

    10841 White Oak Ave, 
    Rancho Cucamonga, CA 
     (1.6 miles away)
    Experience:
    46+ years
    Languages Spoken:
    English

    Zaher Azzawi is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Azzawi has been practicing medicine for over 46 years and is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Orbital Cellulitis, Tracheitis, Cellulitis, and Lymphangitis.

    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology

    Basim Z. Abdelkarim, M.D., Inc.

    1310 San Bernardino Rd, 
    Upland, CA 
     (2.3 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English
    Offers Telehealth

    Priyanka Yaramada is a Gastroenterologist in Upland, California. Dr. Yaramada has been practicing medicine for over 18 years and is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Anemia, Diverticular Disease, Hemorrhoids, Gastrectomy, and Gastrostomy.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Hadi, Ghassan, E., M.D., Inc.

    1060 E Foothill Blvd, 
    Upland, CA 
     (2.5 miles away)
    Experience:
    38+ years
    Languages Spoken:
    English
    Offers Telehealth

    Ghassan Hadi is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Hadi has been practicing medicine for over 38 years and is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Acute Kidney Failure, End-Stage Renal Disease (ESRD), Sepsis, Gastrostomy, and Endoscopy.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    ProHealth Partners A Medical Group Inc.

    1042 San Bernardino Rd, 
    Upland, CA 
     (2.6 miles away)
    Languages Spoken:
    English

    Azhar Majeed is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Majeed is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Hypertensive Heart Disease, Acute Kidney Failure, COVID-19, Gastrostomy, and Endoscopy.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Viet D. Ta MD & Tiffany L. Quan MD Medical Associates Inc.

    8235 Rochester Ave Ste 110, 
    Rancho Cucamonga, CA 
     (2.8 miles away)
    Languages Spoken:
    English

    Cong Phan is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Phan is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Angiodysplasia of the Colon, Acute Kidney Failure, Visceromegaly, Gastrostomy, and Endoscopy.

    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology

    Chaparral Medical Group Inc.

    1330 San Bernardino Rd Ste L, 
    Upland, CA 
     (3.9 miles away)
    Languages Spoken:
    English

    Nischita Merla is a Gastroenterologist in Upland, California. Dr. Merla is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Cronkhite-Canada Disease, Attenuated Familial Adenomatous Polyposis, Juvenile Polyposis Syndrome, Endoscopy, and Gastrostomy.

    Showing 1-20 of 132

    Last Updated: 02/22/2026

    What is the definition of Colitis?

    Colitis is swelling (inflammation) of the large intestine (colon).

    When should I see a Colitis doctor near Rancho Cucamonga, 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 Colitis doctor near Rancho Cucamonga, 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 Colitis doctors near Rancho Cucamonga, 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 Colitis doctors near Rancho Cucamonga, 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 Colitis doctor near Rancho Cucamonga, 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 Colitis doctor search results page. 

    Why is it important to get a second opinion from a different Colitis 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 Colitis doctor near Rancho Cucamonga, 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 Colitis 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 Colitis 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 Colitis doctors near Rancho Cucamonga, CA?

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

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