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

Find the Top Gastrointestinal Stromal Tumor Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 13 doctor with experience in Gastrointestinal Stromal Tumor near Oxnard, CA. Of these, 12 are Experienced and 1 are Advanced.

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13 providers found
    Brian C. Tuai
    Experienced in Gastrointestinal Stromal Tumor
    General Surgery
    Experienced in Gastrointestinal Stromal Tumor
    General Surgery

    General Surgery Medical Group Of Ventura County

    1700 Rose Ave, Suite 430, 
    Oxnard, CA 
     (0.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Dr. Tuai attended Ohio State University, College of Medicine after he received his Undergraduate Degree in Biochemistry at UC Davis in 1992. He completed his general surgery residency at UC San Francisco/Fresno, where he spent a year as a clinical instructor in the Department of Surgery, before beginning a private practice in Chino. He joined the Group in December, 2004.Dr. Tuai is a Board Certified surgeon and a Fellow of the American College of Surgeons who has extensive experience with advanced laparoscopic and minimally invasive techniques including robotic surgery.Dr. Tuai's passion is minimally invasive surgeries, especially involving the colon, stomach, gall bladder, and hernias. He is fluent in Mandarin Chinese and Korean.Offers high-quality, individualized care with compassion. Believes communication and collaboration with patients is the foundation for effective relationships. Through effective education, patients are empowered to partner in their care and achieve their health goals. Dr. Tuai is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Hernia, Gallstones, Choledocholithiasis, Hernia Surgery, and Ileostomy.

    Experienced in Gastrointestinal Stromal Tumor
    Experienced in Gastrointestinal Stromal Tumor
    1700 North Rose Avenue, Suite 320, 
    Oxnard, CA 
     (1.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Todd Yates is a Hematologist in Oxnard, California. Dr. Yates is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Paget Disease of the Breast, Drug-Induced Thrombocytopenia, Familial Colorectal Cancer, and Iron Deficiency Anemia. Dr. Yates is currently accepting new patients.

    Experienced in Gastrointestinal Stromal Tumor
    Experienced in Gastrointestinal Stromal Tumor
    1700 North Rose Avenue, Suite 320, 
    Oxnard, CA 
     (1.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Fariborz Mortazavi is a Hematologist in Oxnard, California. Dr. Mortazavi is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Iron Deficiency Anemia, Childhood Iron Deficiency Anemia, Polycythemia Vera, and Pleuropulmonary Blastoma. Dr. Mortazavi is currently accepting new patients.

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

    Office

    2001 Solar Dr Ste 135, 
    Oxnard, CA 
     (2.9 miles away)
    Languages Spoken:
    English

    William King is a Radiologist in Oxnard, California. Dr. King is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Progressive Familial Intrahepatic Cholestasis Type 1, Progressive Familial Intrahepatic Cholestasis Type 2, Progressive Familial Intrahepatic Cholestasis Type 3, and Visceromegaly.

    Chirag J. Dalsania
    Advanced in Gastrointestinal Stromal Tumor
    Advanced in Gastrointestinal Stromal Tumor
    Camarillo, CA 
     (6.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Chirag Dalsania is a Hematologist in Camarillo, California. Dr. Dalsania is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Thrombocytopenia, Iron Deficiency Anemia, Adult Immune Thrombocytopenia, and Immune Thrombocytopenic Purpura (ITP). Dr. Dalsania is currently accepting new patients.

    Joseph S. Lopresti
    Experienced in Gastrointestinal Stromal Tumor
    General Surgery
    Experienced in Gastrointestinal Stromal Tumor
    General Surgery

    General Surgery Medical Group

    2460 Ponderosa Dr. North #A-117, 
    Camarillo, CA 
     (6.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Offers high-quality, individualized care with compassion. Believes communication and collaboration with patients is the foundation for effective relationships. Through effective education, patients are empowered to partner in their care and achieve their health goals. Dr. Lopresti is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Choledocholithiasis, Gallstones, Gallbladder Disease, Bladder Reconstruction, and Hernia Surgery.

    Lynn R. Kong
    Experienced in Gastrointestinal Stromal Tumor
    Hematology
    Experienced in Gastrointestinal Stromal Tumor
    Hematology
    2900 Loma Vista Road, Suite 200, 
    Ventura, CA 
     (7.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Lynn Kong is a Hematologist in Ventura, California. Dr. Kong is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. Her top areas of expertise are Paget Disease of the Breast, Breast Cancer, Inflammatory Breast Cancer, and Melanoma. Dr. Kong is currently accepting new patients.

    Karen L. Simon
    Experienced in Gastrointestinal Stromal Tumor
    Gastroenterology
    Experienced in Gastrointestinal Stromal Tumor
    Gastroenterology

    Ventura County Gastroenterology Group

    4005 Mission Oaks Blvd, Ste A, 
    Camarillo, CA 
     (9.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Dr. Karen Simon received her B.A. from Stanford University in 1996. She then attended Northwestern University for medical school. She completed her residency at Cedars-Sinai Medical Center in 2004 and her fellowship at UCLA and Cedars in 2008.Dr. Simon has proudly been serving patients in Ventura County since 2008 and is very involved in field research. Dr. Simon is also a speaker for Exact Sciences on behalf of Cologuard and is actively associated in research studies. She is a part of the Takeda Chloride Channel Council and a speaker for Amitiza, as well.She enjoys educating the doctors and the community as a lecturer on topics such as colorectal cancer screening at St. John's Hospital, where she is also a part of the Ethics Committee.Dr. Simon aims specifically to work with patients to discover the problem and develop a treatment strategy. She has a particular interest in Celiac Disease, Inflammatory Bowel Disease (IBD), and a passion for improving colorectal cancer detection.She is dedicated to developing a relationship with patients by utilizing education and mutual information sharing. Dr. Simon is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. Her top areas of expertise are Gastroesophageal Reflux Disease (GERD), Familial Adenomatous Polyposis, Swallowing Difficulty, Endoscopy, and Colonoscopy.

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

    Office

    2001 Solar Dr Ste 135, 
    Oxnard, CA 
     (2.9 miles away)
    Languages Spoken:
    English

    Irwin Grossman is a Radiation Oncologist in Oxnard, California. Dr. Grossman is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Scoliosis, Melorheostosis with Osteopoikilosis, Melorheostosis, and Osteopenia.

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

    Ventura County Surgical Associates

    300 Hillmont Ave Bldg 340 #401, 
    Ventura, CA 
     (6.5 miles away)
    Experience:
    10+ years
    Languages Spoken:
    English
    Accepting New Patients

    Karim Jreije is a General Surgeon in Ventura, California. Dr. Jreije has been practicing medicine for over 10 years and is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Gallbladder Adenocarcinoma, Gallbladder Disease, Appendicitis, Sleeve Gastrectomy, and Gastrectomy. Dr. Jreije is currently accepting new patients.

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

    Island View Gastroenterology Associates

    168 N Brent St Ste 404, 
    Ventura, CA 
     (6.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Kip Lyche is a Gastroenterologist in Ventura, California. Dr. Lyche is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Esophageal Varices, Enlarged Liver, Visceromegaly, Endoscopy, and Colonoscopy. Dr. Lyche is currently accepting new patients.

    Experienced in Gastrointestinal Stromal Tumor
    Experienced in Gastrointestinal Stromal Tumor
    3291 Loma Vista Rd, 
    Ventura, CA 
     (7.0 miles away)
    Languages Spoken:
    English

    Evan Slater is an Oncologist in Ventura, California. Dr. Slater is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Inflammatory Breast Cancer, Gastrointestinal Stromal Tumor, Follicular Lymphoma, and Paget Disease of the Breast.

    Experienced in Gastrointestinal Stromal Tumor
    Experienced in Gastrointestinal Stromal Tumor

    Office

    1 Amgen Center Dr, 
    Newbury Park, CA 
     (14.7 miles away)
    Languages Spoken:
    English

    Carolyn Britten is an Oncologist in Newbury Park, California. Dr. Britten is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. Her top areas of expertise are Colorectal Cancer, Familial Colorectal Cancer, Small Cell Lung Cancer (SCLC), and Squamous Cell Lung Carcinoma.

    Showing 1-13 of 13

    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 Oxnard, 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 Oxnard, 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 Oxnard, 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 Oxnard, 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 Oxnard, 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 Oxnard, 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 Oxnard, 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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