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    Last Updated: 10/30/2025

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    MediFind found 118 doctor with experience in Gastrointestinal Stromal Tumor near Orange, CA. Of these, 103 are Experienced, 14 are Advanced and 1 are Distinguished.

    Location
    LocationClose
    118 providers found
      Experienced in Gastrointestinal Stromal Tumor
      Hematology Oncology | Hematology | Oncology
      Experienced in Gastrointestinal Stromal Tumor
      Hematology Oncology | Hematology | Oncology

      Uc Regents

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

      Misagh Karimi is a Hematologist Oncology specialist and a Hematologist in Orange, California. Dr. Karimi is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Breast Cancer, Familial Colorectal Cancer, Colorectal Cancer, and Paget Disease of the Breast.

      Distinguished in Gastrointestinal Stromal Tumor
      Hematology | Oncology
      Distinguished in Gastrointestinal Stromal Tumor
      Hematology | Oncology

      Uc Regents

      101 The City Dr S, Uci Dept Of Medicine, 
      Orange, CA 
       (2.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Warren Chow is a Hematologist and an Oncologist in Orange, California. Dr. Chow is rated as a Distinguished provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Adult Soft Tissue Sarcoma, Synovial Sarcoma, Liposarcoma, and Chondrosarcoma.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Advanced in Gastrointestinal Stromal Tumor
      Hematology Oncology | Hematology | Oncology
      Advanced in Gastrointestinal Stromal Tumor
      Hematology Oncology | Hematology | Oncology

      City Of Hope Medical Foundation

      16300 Sand Canyon Ave, Suite 207, 
      Irvine, CA 
       (10.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Luke Chen is a Hematologist Oncology specialist and a Hematologist in Irvine, California. Dr. Chen is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Clear Cell Sarcoma, Renal Cell Carcinoma (RCC), Chromophobe Renal Cell Carcinoma, WT1-Related Wilms Tumor Syndromes, and Prostatectomy.

      Learn about our expert tiers
      Experienced in Gastrointestinal Stromal Tumor
      Hematology Oncology | Hematology | Oncology
      Experienced in Gastrointestinal Stromal Tumor
      Hematology Oncology | Hematology | Oncology

      City Of Hope Medical Foundation

      16300 Sand Canyon Ave, Suite 207, 
      Irvine, CA 
       (10.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Danny Nguyen is a Hematologist Oncology specialist and a Hematologist in Irvine, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Pleuropulmonary Blastoma, Lynch Syndrome, Colorectal Cancer, and Familial Colorectal Cancer.

      Advanced in Gastrointestinal Stromal Tumor
      Advanced in Gastrointestinal Stromal Tumor

      Uc Regents

      101 The City Dr S, Uci Dept Of Medicine, 
      Orange, CA 
       (2.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Farshid Dayyani is an Oncologist in Orange, California. Dr. Dayyani is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Stomach Cancer, Cholangiocarcinoma (Bile Duct Cancer), Familial Colorectal Cancer, Tissue Biopsy, and Liver Embolization.

      Advanced in Gastrointestinal Stromal Tumor
      General Surgery
      Advanced in Gastrointestinal Stromal Tumor
      General Surgery

      University Surgeons Of Orange A Medical Group

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

      Ninh Nguyen is a General Surgeon in Orange, California. Dr. Nguyen is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Hiatal Hernia, Hernia, Obesity, Endoscopy, and Gastric Bypass.

      Advanced in Gastrointestinal Stromal Tumor
      Gastroenterology
      Advanced in Gastrointestinal Stromal Tumor
      Gastroenterology

      Uc Regents

      101 The City Dr S, Uci Dept Of Medicine, 
      Orange, CA 
       (2.0 miles away)
      Languages Spoken:
      English

      John Lee is a Gastroenterologist in Orange, California. Dr. Lee is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Jaundice, Cholestasis, Bile Duct Stricture, Endoscopy, and Pancreatectomy.

      Advanced in Gastrointestinal Stromal Tumor
      Gastroenterology
      Advanced in Gastrointestinal Stromal Tumor
      Gastroenterology

      Uc Regents

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

      Jason Samarasena is a Gastroenterologist in Orange, California. Dr. Samarasena is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Barrett Esophagus, Jaundice, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Colonoscopy.

      Experienced in Gastrointestinal Stromal Tumor
      Hematology
      Experienced in Gastrointestinal Stromal Tumor
      Hematology
      1010 West La Veta Avenue, Suite 200, 
      Orange, CA 
       (1.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Timothy Byun is a Hematologist in Orange, California. Dr. Byun is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Lung Cancer, Anal Cancer, Small Cell Lung Cancer (SCLC), Pleuropulmonary Blastoma, and Bone Marrow Aspiration.

      Experienced in Gastrointestinal Stromal Tumor
      Gastroenterology
      Experienced in Gastrointestinal Stromal Tumor
      Gastroenterology
      1010 West La Veta Avenue, Suite 570, 
      Orange, CA 
       (1.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Hardeep Singh is a Gastroenterologist in Orange, California. Dr. Singh is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Barrett Esophagus, Esophageal Varices, Familial Pancreatic Cancer, Gastrostomy, and Gastrectomy.

      Experienced in Gastrointestinal Stromal Tumor
      Hematology Oncology
      Experienced in Gastrointestinal Stromal Tumor
      Hematology Oncology
      1010 West La Veta Avenue, Suite 200, 
      Orange, CA 
       (1.2 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Tariq Mahmood is a Hematologist Oncology provider in Orange, California. Dr. Mahmood is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Breast Cancer, Paget Disease of the Breast, Angiosarcoma, and Pleuropulmonary Blastoma. Dr. Mahmood is currently accepting new patients.

      Experienced in Gastrointestinal Stromal Tumor
      Oncology | Hematology
      Experienced in Gastrointestinal Stromal Tumor
      Oncology | Hematology
      101 The City Dr S Rm 240, 
      Orange, CA 
       (1.2 miles away)
      Languages Spoken:
      English

      Samuel Ejadi is an Oncologist and a Hematologist in Orange, California. Dr. Ejadi is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Melanoma, Ampullary Cancer, Liver Cancer, and Neuroendocrine Tumor.

      Experienced in Gastrointestinal Stromal Tumor
      Hematology Oncology
      Experienced in Gastrointestinal Stromal Tumor
      Hematology Oncology
      1010 West La Veta Avenue, Suite 200, 
      Orange, CA 
       (1.2 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Xinyu Nan is a Hematologist Oncology provider in Orange, California. Dr. Nan is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Deep Vein Thrombosis, Inflammatory Breast Cancer, Lynch Syndrome, Febrile Neutropenia, and Bone Marrow Aspiration. Dr. Nan is currently accepting new patients.

      Experienced in Gastrointestinal Stromal Tumor
      Surgical Oncology
      Experienced in Gastrointestinal Stromal Tumor
      Surgical Oncology
      1010 West La Veta Avenue, Suite 470, 
      Orange, CA 
       (1.2 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Hisham El is a Surgical Oncologist in Orange, California. Dr. El is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Familial Pancreatic Cancer, Familial Colorectal Cancer, Pancreatic Cancer, Pancreatectomy, and Splenectomy. Dr. El is currently accepting new patients.

      Experienced in Gastrointestinal Stromal Tumor
      Experienced in Gastrointestinal Stromal Tumor
      Uci Medical Center, 101 The City Drive South, 
      Orange, CA 
       (1.2 miles away)
      Languages Spoken:
      English

      Lisa Quane is a Radiologist in Orange, California. Dr. Quane is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. Her top areas of expertise are Headache, Gallbladder Disease, Ureterocele, and Gastrointestinal Stromal Tumor.

      Experienced in Gastrointestinal Stromal Tumor
      Experienced in Gastrointestinal Stromal Tumor
      363 South Main Street, Suite 485, 
      Orange, CA 
       (1.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Stavroula Otis is a Hematologist in Orange, California. Dr. Otis is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. Her top areas of expertise are Breast Cancer, Paget Disease of the Breast, Pleuropulmonary Blastoma, and Familial Prostate Cancer.

      Experienced in Gastrointestinal Stromal Tumor
      Bariatric Medicine | General Surgery
      Experienced in Gastrointestinal Stromal Tumor
      Bariatric Medicine | General Surgery
      1010 West La Veta Avenue, Suite 300, 
      Orange, CA 
       (1.2 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Sami Hamamji is a General Surgeon and a Bariatric Medicine provider in Orange, California. Dr. Hamamji is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Hernia, Gallstones, Choledocholithiasis, Sleeve Gastrectomy, and Hernia Surgery. Dr. Hamamji is currently accepting new patients.

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

      University Surgeons Of Orange A Medical Group

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

      Maheswari Senthil is a Surgical Oncologist in Orange, California. Dr. Senthil is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. Her top areas of expertise are Colorectal Cancer, Pseudomyxoma Peritonei, Breast Cancer, Pancreaticoduodenectomy, and Gastrostomy.

      Experienced in Gastrointestinal Stromal Tumor
      Hematology Oncology | Hematology | Oncology
      Experienced in Gastrointestinal Stromal Tumor
      Hematology Oncology | Hematology | Oncology

      Uc Regents

      101 The City Dr S, Uci Dept Of Medicine, 
      Orange, CA 
       (2.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Fa-chyi Lee is a Hematologist Oncology specialist and a Hematologist in Orange, California. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Familial Pancreatic Cancer, Cholangiocarcinoma (Bile Duct Cancer), Colorectal Cancer, and Familial Colorectal Cancer.

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

      University Surgeons Of Orange A Medical Group

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

      David Imagawa is a General Surgeon in Orange, California. Dr. Imagawa is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Stromal Tumor. His top areas of expertise are Pancreatic Cancer, Familial Pancreatic Cancer, Ampullary Cancer, Gallbladder Removal, and Pancreatectomy.

      Showing 1-20 of 118

      Last Updated: 10/30/2025

      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 Orange, 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 Orange, 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 Orange, 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 Orange, 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 Orange, 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 Orange, 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 Orange, 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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