The 20 Best Colonoscopy Doctors near costa mesa, CA

Find the Experts and Specialists who perform Colonoscopy

Last Updated: 09/26/2026

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MediFind found 198 doctor with experience in Colonoscopy near costa mesa, CA. Of these, 184 are Experienced, 12 are Advanced and 1 are Elite.

Location
LocationClose
198 providers found
    Elite in Colonoscopy
    Gastroenterology
    Elite in Colonoscopy
    Gastroenterology
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
     (8.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jason Samarasena is a Gastroenterologist practicing medicine in Orange, California. Dr. Samarasena is rated as an Elite provider by MediFind in Colonoscopy. He is also highly rated in 50 other conditions, according to our data. His clinical expertise encompasses Barrett Esophagus, Jaundice, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Colonoscopy. Dr. Samarasena is board certified in American Board Of Internal Medicine - Gastroenterology.

    Experienced in Colonoscopy
    Gastroenterology
    Experienced in Colonoscopy
    Gastroenterology
    Referral may be required

    Gottschalk Medical Plaza

    1 Medical Plaza Drive, 
    Irvine, CA 
     (3.3 miles away)
    Experience:
    44+ years
    Languages Spoken:
    English
    Offers Telehealth

    William Karnes is a Gastroenterologist practicing medicine in Irvine, California. He has been practicing medicine for over 44 years. Dr. Karnes is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Trichohepatoenteric Syndrome, Nonalcoholic Steatohepatitis (NASH), Familial Adenomatous Polyposis, Endoscopy, and Gastrectomy. Dr. Karnes is board certified in American Board Of Internal Medicine - Gastroenterology and American Board Of Internal Medicine - Internal Medicine.

    Experienced in Colonoscopy
    Colorectal Surgery
    Experienced in Colonoscopy
    Colorectal Surgery
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
     (8.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Skandan Shanmugan is a Colorectal Surgeon practicing medicine in Orange, California. Dr. Shanmugan is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Colorectal Cancer, Lynch Syndrome, Hernia Surgery, and Ileostomy. Dr. Shanmugan is board certified in American Board Of Surgery - Surgery (General Surgery). Dr. Shanmugan is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    Optum - Harbor

    3501 S Harbor Blvd, 
    Santa Ana, CA 
     (2.6 miles away)
    Languages Spoken:
    English

    Shirin Majdizadeh is a primary care provider, practicing in Internal Medicine in Santa Ana, California. Dr. Majdizadeh is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 6 other conditions, according to our data. Her clinical expertise encompasses Apparent Mineralocorticoid Excess, Familial Hyperaldosteronism, Hyperaldosteronism, Colonoscopy, and Endoscopy. Dr. Majdizadeh is board certified in American Board Of Internal Medicine.

    Experienced in Colonoscopy
    Gastroenterology
    Experienced in Colonoscopy
    Gastroenterology
    Referral may be required

    Angizeh Sadeghi MD Inc.

    901 Dover Dr Ste 205, 
    Newport Beach, CA 
     (2.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Angizeh Sadeghi is a Gastroenterologist practicing medicine in Newport Beach, California. Dr. Sadeghi is rated as an Experienced provider by MediFind in Colonoscopy. Her clinical expertise encompasses Mallory-Weiss Syndrome, Bacterial Gastroenteritis, Small Bowel Bacterial Overgrowth, Colonoscopy, and Gastrectomy.

    Experienced in Colonoscopy
    Gastroenterology
    Experienced in Colonoscopy
    Gastroenterology
    Referral may be required

    Preventive Healthcare Medical Centers

    500 Superior Ave Ste 100, 
    Newport Beach, CA 
     (2.7 miles away)
    Languages Spoken:
    English

    Badar Hasan is a Gastroenterologist practicing medicine in Newport Beach, California. Dr. Hasan is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Colitis, Ulcerative Colitis, Hemorrhagic Proctocolitis, Ileostomy, and Colonoscopy.

    Experienced in Colonoscopy
    Colorectal Surgery
    Experienced in Colonoscopy
    Colorectal Surgery
    Referral may be required

    Preventive Healthcare Medical Centers

    500 Superior Ave Ste 100, 
    Newport Beach, CA 
     (2.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Elizabeth Raskin is a Colorectal Surgeon practicing medicine in Newport Beach, California. Dr. Raskin is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Rectal Prolapse, Familial Colorectal Cancer, Colorectal Cancer, Hernia Surgery, and Colostomy. Dr. Raskin is currently accepting new patients.

    Experienced in Colonoscopy
    Gastroenterology
    Experienced in Colonoscopy
    Gastroenterology
    Referral may be required

    Deguzman Medical Corp.

    1525 Superior Ave Ste 200, 
    Newport Beach, CA 
     (2.8 miles away)
    Languages Spoken:
    English

    Lino Deguzman is a Gastroenterologist practicing medicine in Newport Beach, California. Dr. Deguzman is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Gastroesophageal Reflux Disease (GERD), Familial Adenomatous Polyposis, Barrett Esophagus, and Colonoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    John C. Storch M.D. Inc.

    350 Old Newport Blvd, 
    Newport Beach, CA 
     (2.9 miles away)
    Languages Spoken:
    English

    John Storch is a primary care provider, practicing in Internal Medicine in Newport Beach, California. Dr. Storch is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Trophoblastic Tumor Placental Site, Schnitzler Syndrome, Monoclonal Gammopathy of Undetermined Significance (MGUS), Juvenile Primary Osteoporosis, and Colonoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    Hoag Memorial Hospital Presbyterian

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

    Hany Bashandy is a primary care provider, practicing in Internal Medicine in Newport Beach, California. Dr. Bashandy is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Sepsis, Gastrointestinal Bleeding, Stroke, Endoscopy, and Gastrostomy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    Hoag Memorial Hospital Presbyterian

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

    Shervin Nourparvar is a primary care provider, practicing in Internal Medicine in Newport Beach, California. Dr. Nourparvar is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Sepsis, Stroke, Ogilvie Syndrome, Gastrostomy, and Endoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    Hoag Memorial Hospital Presbyterian

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

    Richard Mansour is a primary care provider, practicing in Internal Medicine in Newport Beach, California. Dr. Mansour is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Thrombophlebitis, Sepsis, Ogilvie Syndrome, Endoscopy, and Gastrostomy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    Hoag Memorial Hospital Presbyterian

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

    Salina Wolf is a primary care provider, practicing in Internal Medicine in Newport Beach, California. Dr. Wolf is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 17 other conditions, according to our data. Her clinical expertise encompasses Sepsis, Cholecystitis, Stroke, Gastrostomy, and Bone Marrow Aspiration.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    Hoag Memorial Hospital Presbyterian

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

    William Ensley is a primary care provider, practicing in Internal Medicine in Newport Beach, California. Dr. Ensley is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Chordoma, Sepsis, Gastrointestinal Bleeding, Gastrostomy, and Endoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    Hoag Memorial Hospital Presbyterian

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

    Gene Mizumoto is a primary care provider, practicing in Internal Medicine in Newport Beach, California. Dr. Mizumoto is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Sepsis, Stroke, Ogilvie Syndrome, Gastrostomy, and Endoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    Hoag Memorial Hospital Presbyterian

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

    Richard Meis is a primary care provider, practicing in Internal Medicine in Newport Beach, California. Dr. Meis is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Sepsis, Ogilvie Syndrome, Gastrointestinal Bleeding, Gastrostomy, and Endoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    Hoag Memorial Hospital Presbyterian

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

    Jusleen Uppal is a primary care provider, practicing in Internal Medicine in Newport Beach, California. Dr. Uppal is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Sepsis, Ogilvie Syndrome, Hypothermia, Gastrostomy, and Colonoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    Hoag Memorial Hospital Presbyterian

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

    Jadwiga Close is a primary care provider, practicing in Internal Medicine in Newport Beach, California. Dr. Close is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Sepsis, Ogilvie Syndrome, Pneumonia, Gastrostomy, and Bone Marrow Aspiration.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    Hoag Memorial Hospital Presbyterian

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

    Victor Sanders is a primary care provider, practicing in Internal Medicine in Newport Beach, California. Dr. Sanders is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Sepsis, Peptic Ulcer, Pneumonia, Gastrostomy, and Endoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    Hoag Memorial Hospital Presbyterian

    1 Hoag Dr, 
    Newport Beach, CA 
     (3.1 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English

    Brian Kong is a primary care provider, practicing in Internal Medicine in Newport Beach, California. He has been practicing medicine for over 18 years. Dr. Kong is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Sepsis, Oligodendroglioma, Pediatric Low-Grade Glioma (pLGG), Gastrostomy, and Endoscopy.

    Showing 1-20 of 198

    Last Updated: 09/26/2026

    What is the definition of Colonoscopy?

    A colonoscopy is an exam that views the inside of the colon (large intestine) and rectum, using a tool called a colonoscope.

    The colonoscope has a small camera attached to a flexible tube that can reach the entire length of the colon.

    When should I see a Colonoscopy doctor near costa mesa, 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 Colonoscopy doctor near costa mesa, 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 Colonoscopy doctors near costa mesa, 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 Colonoscopy doctors near costa mesa, 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 Colonoscopy doctor near costa mesa, 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 Colonoscopy doctor search results page. 

    Why is it important to get a second opinion from a different Colonoscopy 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 Colonoscopy doctor near costa mesa, 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 Colonoscopy 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 Colonoscopy 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 Colonoscopy doctors near costa mesa, CA?

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

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