The 20 Best Gastrointestinal Bleeding Doctors Near Me in Rancho Cucamonga, CA

Find the Top Gastrointestinal Bleeding Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 90 doctor with experience in Gastrointestinal Bleeding near Rancho Cucamonga, CA. Of these, 71 are Experienced, 16 are Advanced and 3 are Distinguished.

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90 providers found
    Distinguished in Gastrointestinal Bleeding
    Gastroenterology
    Distinguished in Gastrointestinal Bleeding
    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 practicing medicine in Rancho Cucamonga, California. Dr. Abidali is rated as a Distinguished provider by MediFind in the treatment of Gastrointestinal Bleeding. 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 Bleeding
    Gastroenterology
    Experienced in Gastrointestinal Bleeding
    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 Gastrointestinal Bleeding. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Diverticular Disease, Familial Adenomatous Polyposis, Gastritis, Gastrectomy, and Endoscopy. Dr. Tieng is board certified in Internal Medicine. Dr. Tieng is currently accepting new patients.

    Distinguished in Gastrointestinal Bleeding
    Gastroenterology
    Distinguished in Gastrointestinal Bleeding
    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 practicing medicine in Upland, California. He has been practicing medicine for over 27 years. Dr. Abdelkarim is rated as a Distinguished provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 67 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Hemorrhoids, Gastroesophageal Reflux Disease (GERD), Gastrostomy, and Endoscopy. Dr. Abdelkarim is board certified in American Board Of Internal Medicine.

    Learn about our expert tiers
    Advanced in Gastrointestinal Bleeding
    Internal Medicine
    Advanced in Gastrointestinal Bleeding
    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 Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Acute Kidney Failure, Renovascular Hypertension, End-Stage Renal Disease (ESRD), Gastrostomy, and Endoscopy.

    Advanced in Gastrointestinal Bleeding
    Gastroenterology
    Advanced in Gastrointestinal Bleeding
    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 practicing medicine in Upland, California. She has been practicing medicine for over 18 years. Dr. Yaramada is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. She is also highly rated in 27 other conditions, according to our data. Her clinical expertise encompasses Anemia, Diverticular Disease, Hemorrhoids, Gastrectomy, and Gastrostomy. Dr. Yaramada is board certified in American Board Of Internal Medicine.

    Advanced in Gastrointestinal Bleeding
    Gastroenterology
    Advanced in Gastrointestinal Bleeding
    Gastroenterology

    Ct Hung MD Inc.

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

    Chuang-ti Hung is a Gastroenterologist practicing medicine in Upland, California. Dr. Hung is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 47 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Trichohepatoenteric Syndrome, Hemorrhoids, Gastrectomy, and Gastrostomy.

    Advanced in Gastrointestinal Bleeding
    Gastroenterology
    Advanced in Gastrointestinal Bleeding
    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 practicing medicine in Upland, California. Dr. Merla is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. She is also highly rated in 36 other conditions, according to our data. Her clinical expertise encompasses Attenuated Familial Adenomatous Polyposis, Cronkhite-Canada Disease, Juvenile Polyposis Syndrome, Endoscopy, and Gastrostomy.

    Advanced in Gastrointestinal Bleeding
    Internal Medicine
    Advanced in Gastrointestinal Bleeding
    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 practicing medicine in Upland, California. He has been practicing medicine for over 53 years. Dr. Jenkins is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Irritable Bowel Syndrome (IBS), Diverticular Disease, Hemorrhoids, Gastrectomy, and Gastrostomy. Dr. Jenkins is board certified in American Osteopathic Board Of Internal Medicine.

    Distinguished in Gastrointestinal Bleeding
    Internal Medicine
    Distinguished in Gastrointestinal Bleeding
    Internal Medicine

    Platinum Digestive Health

    250 W Bonita Ave, 
    Pomona, CA 
     (9.1 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 a Distinguished provider by MediFind in the treatment of Gastrointestinal Bleeding. 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 Bleeding
    Internal Medicine
    Experienced in Gastrointestinal Bleeding
    Internal Medicine

    Carlos R. Vigil DO A Professional Corp.

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

    Rishi Talwar is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Talwar is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Apoplexy, Sepsis, Heart Attack, Septoplasty, and Adenoidectomy.

    Experienced in Gastrointestinal Bleeding
    Internal Medicine
    Experienced in Gastrointestinal Bleeding
    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 Gastrointestinal Bleeding. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, and Obesity.

    Experienced in Gastrointestinal Bleeding
    Internal Medicine
    Experienced in Gastrointestinal Bleeding
    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 Gastrointestinal Bleeding. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Familial Colorectal Cancer, Maturity Onset Diabetes of the Young, and Chronic Cough.

    Experienced in Gastrointestinal Bleeding
    Family Medicine
    Experienced in Gastrointestinal Bleeding
    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. He has been practicing medicine for over 27 years. Dr. Singh is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 108 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, Liver Transplant, and Knee Replacement. Dr. Singh is board certified in American Board Of Family Medicine.

    Experienced in Gastrointestinal Bleeding
    Internal Medicine | Pulmonary Medicine
    Experienced in Gastrointestinal Bleeding
    Internal Medicine | Pulmonary Medicine

    Inland Physicians Pulmonary Services

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

    Rick Siriratsivawong is an Internal Medicine specialist and a Pulmonary Medicine provider practicing medicine in Upland, California. He has been practicing medicine for over 17 years. Dr. Siriratsivawong is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Pneumonia, Hospital-Acquired Pneumonia, Atypical Pneumonia, Gastrostomy, and Endoscopy. Dr. Siriratsivawong is board certified in American Board Of Internal Medicine.

    Experienced in Gastrointestinal Bleeding
    Internal Medicine
    Experienced in Gastrointestinal Bleeding
    Internal Medicine

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

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

    Ghassan Hadi is a primary care provider, practicing in Internal Medicine in Upland, California. He has been practicing medicine for over 38 years. Dr. Hadi is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Acute Kidney Failure, End-Stage Renal Disease (ESRD), Sepsis, Gastrostomy, and Endoscopy. Dr. Hadi is board certified in American Board Of Internal Medicine.

    Experienced in Gastrointestinal Bleeding
    Family Medicine
    Experienced in Gastrointestinal Bleeding
    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 Gastrointestinal Bleeding. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Hypertensive Heart Disease, Acute Kidney Failure, Multisystem Inflammatory Syndrome in Children (MIS-C), Gastrostomy, and Endoscopy.

    Experienced in Gastrointestinal Bleeding
    Internal Medicine
    Experienced in Gastrointestinal Bleeding
    Internal Medicine

    ProHealth Partners A Medical Group Inc.

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

    Mansurur Khan is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Khan is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Renovascular Hypertension, Stroke, Hypertensive Heart Disease, Gastrostomy, and Endoscopy.

    Experienced in Gastrointestinal Bleeding
    Family Medicine
    Experienced in Gastrointestinal Bleeding
    Family Medicine

    S. M. Hammad Rizvi, M.D., Inc.

    901 San Bernardino Rd, 
    Upland, CA 
     (2.7 miles away)
    Experience:
    25+ years
    Languages Spoken:
    English
    Offers Telehealth

    Syed Rizvi is a primary care provider, practicing in Family Medicine in Upland, California. He has been practicing medicine for over 25 years. Dr. Rizvi is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Hypertensive Heart Disease, Multisystem Inflammatory Syndrome in Children (MIS-C), COVID-19, Gastrostomy, and Endoscopy. Dr. Rizvi is board certified in American Board Of Family Medicine.

    Experienced in Gastrointestinal Bleeding
    Family Medicine
    Experienced in Gastrointestinal Bleeding
    Family Medicine

    Win Family Medicine Inc.

    811 E 11th St Ste 205, 
    Upland, CA 
     (2.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sandar Win is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Win is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Bleeding. Her clinical expertise encompasses Hypertension, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Osteomyelitis in Children.

    Experienced in Gastrointestinal Bleeding
    Internal Medicine
    Experienced in Gastrointestinal Bleeding
    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 Gastrointestinal Bleeding. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Angiodysplasia of the Colon, Acute Kidney Failure, Visceromegaly, Gastrostomy, and Endoscopy.

    Showing 1-20 of 90

    Last Updated: 04/28/2026

    What is the definition of Gastrointestinal Bleeding?

    Gastrointestinal (GI) bleeding refers to any bleeding that starts in the GI tract.

    Bleeding may come from any site along the GI tract, but is often divided into:

    • Upper GI bleeding: The upper GI tract includes the esophagus (the tube from the mouth to the stomach), stomach, and first part of the small intestine (duodenum).
    • Lower GI bleeding: The lower GI tract includes most of the small intestine, and the entire large intestine, rectum, and anus.

    When should I see a Gastrointestinal Bleeding 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 Gastrointestinal Bleeding 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 Gastrointestinal Bleeding 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 Gastrointestinal Bleeding 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 Gastrointestinal Bleeding 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 Gastrointestinal Bleeding doctor search results page. 

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

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

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