The 20 Best Gastrointestinal Stromal Tumor Doctors Near Me in Fountain Valley, CA

Find the Top Gastrointestinal Stromal Tumor Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 114 doctor with experience in Gastrointestinal Stromal Tumor near Fountain Valley, CA. Of these, 102 are Experienced, 10 are Advanced and 2 are Distinguished.

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114 providers found
    Experienced in Gastrointestinal Stromal Tumor
    Colorectal Surgery
    Experienced in Gastrointestinal Stromal Tumor
    Colorectal Surgery

    Tam H. Le MD Inc.

    18225 Brookhurst St Ste 1, 
    Fountain Valley, CA 
     (0.2 miles away)
    Languages Spoken:
    English

    Tam Le is a Colorectal Surgeon practicing medicine in Fountain Valley, California. Dr. Le is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 24 other conditions, according to our data. His clinical expertise encompasses Hernia, Familial Colorectal Cancer, Colorectal Cancer, Hemorrhoidectomy, and Hernia Surgery.

    Advanced in Gastrointestinal Stromal Tumor
    Advanced in Gastrointestinal Stromal Tumor

    Pacific Shores Medical Group Inc

    19582 Beach Blvd Ste 212, 
    Huntington Beach, CA 
     (4.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Karlos Oregel is a Hematologist practicing medicine in Huntington Beach, California. Dr. Oregel is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Undifferentiated Pleomorphic Sarcoma, Gastrointestinal Stromal Tumor, Inflammatory Breast Cancer, and Paget Disease of the Breast.

    Distinguished in Gastrointestinal Stromal Tumor
    Distinguished in Gastrointestinal Stromal Tumor

    UCI Health

    101 The City Dr S, 
    Orange, CA 
     (6.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Warren Chow is an Oncologist practicing medicine in Orange, California. Dr. Chow is rated as a Distinguished provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 35 other conditions, according to our data. His clinical expertise encompasses Synovial Sarcoma, Adult Soft Tissue Sarcoma, Liposarcoma, and Chondrosarcoma.

    Learn about our expert tiers
    Experienced in Gastrointestinal Stromal Tumor
    Experienced in Gastrointestinal Stromal Tumor

    OC Blood & Cancer Care

    18111 Brookhurst St Ste 6100, 
    Fountain Valley, CA 
     (0.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Sarah Hassan is an Oncologist practicing medicine in Fountain Valley, California. Dr. Hassan is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Iron Deficiency Anemia, Childhood Iron Deficiency Anemia, Mantle Cell Lymphoma (MCL), and Thrombocytopenia. Dr. Hassan is currently accepting new patients.

    Experienced in Gastrointestinal Stromal Tumor
    Gastroenterology
    Experienced in Gastrointestinal Stromal Tumor
    Gastroenterology

    Jose Luis (Jeric) Aranez, MD

    18035 Brookhurst St Ste 2100, 
    Fountain Valley, CA 
     (0.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jose Aranez is a Gastroenterologist practicing medicine in Fountain Valley, California. Dr. Aranez is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Bile Duct Obstruction, Hemorrhoids, Chronic Erosive Gastritis, Endoscopy, and Pancreatectomy.

    Experienced in Gastrointestinal Stromal Tumor
    Internal Medicine
    Experienced in Gastrointestinal Stromal Tumor
    Internal Medicine

    Oncology Physicians Network Of California PC

    9940 Talbert Ave, 
    Fountain Valley, CA 
     (0.6 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English
    Offers Telehealth

    Eddie Thara is an Internal Medicine provider practicing medicine in Fountain Valley, California. He has been practicing medicine for over 18 years. Dr. Thara is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Colorectal Cancer, Thrombocytopenia, Protein S Deficiency, and Pancreatectomy. Dr. Thara is board certified in American Board Of Internal Medicine.

    Experienced in Gastrointestinal Stromal Tumor
    Oncology
    Experienced in Gastrointestinal Stromal Tumor
    Oncology

    Parkinsons Movement & Disorder Medical Group Inc.

    9940 Talbert Ave Ste 204, 
    Fountain Valley, CA 
     (0.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Khai Vu is an Oncologist practicing medicine in Fountain Valley, California. Dr. Vu is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Pleuropulmonary Blastoma, Colorectal Cancer, and Thrombocytopenia.

    Experienced in Gastrointestinal Stromal Tumor
    General Surgery
    Experienced in Gastrointestinal Stromal Tumor
    General Surgery

    Quy V Le MD Inc

    18225 Brookhurst St, 
    Fountain Valley, CA 
     (0.8 miles away)
    Experience:
    21+ years
    Languages Spoken:
    English

    Quy Le is a General Surgeon practicing medicine in Fountain Valley, California. He has been practicing medicine for over 21 years. Dr. Le is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Gallbladder Disease, Gallstones, Hemorrhoidectomy, and Hernia Surgery. Dr. Le is board certified in American Board Of Surgery.

    Experienced in Gastrointestinal Stromal Tumor
    Internal Medicine
    Experienced in Gastrointestinal Stromal Tumor
    Internal Medicine

    Compassionate Cancer Care Medical Group Inc.

    11180 Warner Ave, 
    Fountain Valley, CA 
     (1.3 miles away)
    Experience:
    15+ years
    Languages Spoken:
    English
    Offers Telehealth

    Derrick Su is an Internal Medicine provider practicing medicine in Fountain Valley, California. He has been practicing medicine for over 15 years. Dr. Su is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Splenic Neoplasm, Thrombocytopenia, Lung Cancer, and Pleuropulmonary Blastoma. Dr. Su is board certified in American Board Internal Medicine.

    Experienced in Gastrointestinal Stromal Tumor
    Internal Medicine
    Experienced in Gastrointestinal Stromal Tumor
    Internal Medicine

    Oncology Physicians Network Of California PC

    11180 Warner Ave, 
    Fountain Valley, CA 
     (1.3 miles away)
    Experience:
    21+ years
    Languages Spoken:
    English
    Offers Telehealth

    Kevin Do is an Internal Medicine provider practicing medicine in Fountain Valley, California. He has been practicing medicine for over 21 years. Dr. Do is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Thalassemia, Thrombocytopenia, Anemia, and Splenic Neoplasm. Dr. Do is board certified in American Board Of Internal Medicine.

    Experienced in Gastrointestinal Stromal Tumor
    Hematology
    Experienced in Gastrointestinal Stromal Tumor
    Hematology

    Newport Beach Ob./Gyn. Medical Group Inc.

    19582 Beach Blvd Ste 206, 
    Huntington Beach, CA 
     (4.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Umair Ghani is a Hematologist practicing medicine in Huntington Beach, California. Dr. Ghani is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Bone Tumor, Undifferentiated Pleomorphic Sarcoma, Mesenchymoma, and Myxoid Liposarcoma.

    Experienced in Gastrointestinal Stromal Tumor
    Gastroenterology
    Experienced in Gastrointestinal Stromal Tumor
    Gastroenterology

    The Cancer Treatment Center Of Orange County Medical Group Inc

    19582 Beach Blvd Ste 270, 
    Huntington Beach, CA 
     (4.0 miles away)
    Languages Spoken:
    English

    Victor Yu is a Gastroenterologist practicing medicine in Huntington Beach, California. Dr. Yu is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 52 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Gas Bloat Syndrome, Gastrectomy, and Colonoscopy.

    Experienced in Gastrointestinal Stromal Tumor
    Experienced in Gastrointestinal Stromal Tumor

    UCI Health Chao Family Comprehensive Cancer Center — Costa Mesa

    1640 Newport Blvd Ste 400, 
    Costa Mesa, CA 
     (4.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Misagh Karimi is a Hematologist practicing medicine in Costa Mesa, California. Dr. Karimi is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 29 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Familial Colorectal Cancer, Colorectal Cancer, and Paget Disease of the Breast.

    Experienced in Gastrointestinal Stromal Tumor
    Experienced in Gastrointestinal Stromal Tumor

    UCI Health-Costa Mesa Home Infusion Pharmacy

    1640 Newport Blvd Ste 400, 
    Costa Mesa, CA 
     (4.7 miles away)
    Languages Spoken:
    English

    Khosrow Mahdavi is an Oncologist practicing medicine in Costa Mesa, California. Dr. Mahdavi is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 51 other conditions, according to our data. His clinical expertise encompasses Myelodysplastic Syndrome (MDS), Inflammatory Breast Cancer, Hemochromatosis, Paget Disease of the Breast, and Bone Marrow Aspiration.

    Advanced in Gastrointestinal Stromal Tumor
    Hematology | Oncology
    Advanced in Gastrointestinal Stromal Tumor
    Hematology | Oncology

    Hoag Memorial Hospital Presbyterian

    1 Hoag Dr, 
    Newport Beach, CA 
     (6.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Tara Seery is a Hematologist and an Oncologist practicing medicine in Newport Beach, California. Dr. Seery is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. She is also highly rated in 18 other conditions, according to our data. Her clinical expertise encompasses Pancreatic Ductal Adenocarcinoma, Ampullary Cancer, Pancreatoblastoma, and Cholangiocarcinoma (Bile Duct Cancer).

    Experienced in Gastrointestinal Stromal Tumor
    Experienced in Gastrointestinal Stromal Tumor

    Hoag Memorial Hospital Presbyterian

    1 Hoag Dr, 
    Newport Beach, CA 
     (6.0 miles away)
    Languages Spoken:
    English

    Peter Giuliano is a Radiologist practicing medicine in Newport Beach, California. Dr. Giuliano is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Gastric Lymphoma, Pneumomediastinum, Pleural Effusion, and Pleurisy.

    Experienced in Gastrointestinal Stromal Tumor
    Experienced in Gastrointestinal Stromal Tumor

    Wave Imaging LLC

    3300 W Coast Hwy Ste B, 
    Newport Beach, CA 
     (6.0 miles away)
    Languages Spoken:
    English

    Kourosh Nourisamie is a Radiologist practicing medicine in Newport Beach, California. Dr. Nourisamie is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 31 other conditions, according to our data. His clinical expertise encompasses Visceromegaly, Gallbladder Disease, Non-Alcoholic Fatty Liver Disease, and Progressive Familial Intrahepatic Cholestasis Type 1.

    Experienced in Gastrointestinal Stromal Tumor
    Interventional Radiology
    Experienced in Gastrointestinal Stromal Tumor
    Interventional Radiology

    UCI Health

    101 The City Dr S, 
    Orange, CA 
     (6.6 miles away)
    Languages Spoken:
    English

    Garrett Ward is an Interventional Radiologist practicing medicine in Orange, California. Dr. Ward is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 29 other conditions, according to our data. His clinical expertise encompasses Progressive Familial Intrahepatic Cholestasis Type 1, Progressive Familial Intrahepatic Cholestasis Type 2, Visceromegaly, Non-Alcoholic Fatty Liver Disease, and Pancreaticoduodenectomy.

    Experienced in Gastrointestinal Stromal Tumor
    Experienced in Gastrointestinal Stromal Tumor

    UCI Health

    101 The City Dr S, 
    Orange, CA 
     (6.6 miles away)
    Languages Spoken:
    English

    Roozbeh Houshyar is a Radiologist practicing medicine in Orange, California. Dr. Houshyar is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Pelvic Congestion Syndrome, Visceromegaly, Ureterocele, Thyroid Nodule, and Nephrectomy.

    Experienced in Gastrointestinal Stromal Tumor
    Experienced in Gastrointestinal Stromal Tumor

    UCI Health

    101 The City Dr S, 
    Orange, CA 
     (6.6 miles away)
    Languages Spoken:
    English

    Martin Goyenechea is a Radiologist practicing medicine in Orange, California. Dr. Goyenechea is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Colonic Malakoplakia, WT1-Related Wilms Tumor Syndromes, Cholangiocarcinoma (Bile Duct Cancer), and End-Stage Renal Disease (ESRD).

    Showing 1-20 of 114

    Last Updated: 04/28/2026

    What is the definition of Gastrointestinal Stromal Tumor?

    A gastrointestinal stromal tumor (GIST) is a type of tumor that occurs in the gastrointestinal tract, most commonly in the stomach or small intestine. This type of tumor is thought to grow from specialized cells found in the gastrointestinal tract called interstitial cells of Cajal (ICCs) or precursors to these cells. Affected individuals can develop one or more tumors. GISTs are usually found in adults between ages 40 and 70; rarely, children and young adults develop this type of tumor.

    When should I see a Gastrointestinal Stromal Tumor doctor near Fountain Valley, 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 Stromal Tumor doctor near Fountain Valley, 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 Stromal Tumor doctors near Fountain Valley, 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 Stromal Tumor doctors near Fountain Valley, 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 Stromal Tumor doctor near Fountain Valley, 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 Stromal Tumor doctor search results page. 

    Why is it important to get a second opinion from a different Gastrointestinal Stromal Tumor 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 Stromal Tumor doctor near Fountain Valley, 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 Stromal Tumor 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 Stromal Tumor 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 Stromal Tumor doctors near Fountain Valley, CA?

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

    Look for the filter feature on the left-side of the Gastrointestinal Stromal Tumor 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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