The 20 Best Colonoscopy Doctors near pasadena, CA

Find the Experts and Specialists who perform Colonoscopy

Last Updated: 09/26/2026

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MediFind found 458 doctor with experience in Colonoscopy near pasadena, CA. Of these, 393 are Experienced, 63 are Advanced and 1 are Distinguished.

Location
LocationClose
458 providers found
    General Surgery | Colorectal Surgery | Vascular Surgery
    General Surgery | Colorectal Surgery | Vascular Surgery
    Referral may be required

    Magdi Alexander, MD FACS

    50 Bellefontaine St, 409, 
    Pasadena, CA 
     (1.2 miles away)
    Languages Spoken:
    English, Spanish

    Magdi Alexander is a Colorectal Surgeon and a Vascular Surgeon practicing medicine in Pasadena, California. Dr. Alexander is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Hernia, Retroperitoneal Inflammation, Ogilvie Syndrome, Hernia Surgery, and Gallbladder Removal. Dr. Alexander is board certified in American Board Or Surgery.

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

    Aaron Lewis, M.D. | Surgeon

    209 Fair Oaks Ave, 
    South Pasadena, CA 
     (1.7 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English
    Offers Telehealth

    Aaron Lewis is a General Surgeon practicing medicine in South Pasadena, California. He has been practicing medicine for over 18 years. Dr. Lewis 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 Familial Colorectal Cancer, Stomach Cancer, Neuroendocrine Tumor, Pancreatectomy, and Small Bowel Resection.

    Advanced in Colonoscopy
    Advanced in Colonoscopy
    Referral may be required

    Ryotaro Nakamura, M.D.

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Ryotaro Nakamura is an Oncologist practicing medicine in Duarte, California. Dr. Nakamura is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Chronic Graft Versus Host Disease (cGvHD), Myelodysplastic Syndrome (MDS), Acute Myeloid Leukemia (AML), Bone Marrow Aspiration, and Colonoscopy.

    Learn about our expert tiers
    Experienced in Colonoscopy
    Colorectal Surgery
    Experienced in Colonoscopy
    Colorectal Surgery
    Referral may be required

    USC Care Medical Group Inc

    1500 San Pablo St, 
    Los Angeles, CA 
     (6.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Kyle Cologne is a Colorectal Surgeon practicing medicine in Los Angeles, California. Dr. Cologne 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 Gastrointestinal Fistula, Hemorrhoids, Rectal Prolapse, Colostomy, and Hemorrhoidectomy. Dr. Cologne is board certified in Colon And Rectal Surgery and General Surgery.

    Experienced in Colonoscopy
    Experienced in Colonoscopy
    Referral may be required

    City Of Hope - Duarte Main Campus

    1500 E Duarte Rd, 
    Duarte, CA 
     (9.9 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Offers Telehealth

    Alex Herrera is an Oncologist practicing medicine in Duarte, CA. He has been practicing medicine for over 17 years. Dr. Herrera is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 25 other conditions, according to our data. His clinical expertise encompasses Hodgkin Lymphoma, Classical Hodgkin Lymphoma, Diffuse Large B-Cell Lymphoma (DLBCL), Bone Marrow Aspiration, and Colonoscopy. Dr. Herrera is board certified in American Board Of Internal Medicine, Hematology and American Board Of Internal Medicine, Oncology.

    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology
    Referral may be required

    City Of Hope's Helford Clinical Research Hospital

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    James Lin is a Gastroenterologist practicing medicine in Duarte, California. Dr. Lin is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 58 other conditions, according to our data. His clinical expertise encompasses Bile Duct Stricture, Bile Duct Obstruction, Cholestasis, Colonoscopy, and Gastrectomy.

    Experienced in Colonoscopy
    Hematology | Oncology
    Experienced in Colonoscopy
    Hematology | Oncology
    Referral may be required

    City Of Hope Comprehensive Cancer Center-Duarte

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Stephen Forman is a Hematologist and an Oncologist practicing medicine in Duarte, California. Dr. Forman is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 55 other conditions, according to our data. His clinical expertise encompasses Non-Hodgkin Lymphoma, Acute Myeloid Leukemia (AML), Graft Versus Host Disease (GvHD), Bone Marrow Transplant, and Bone Marrow Aspiration.

    Experienced in Colonoscopy
    Experienced in Colonoscopy
    Referral may be required

    City Of Hope Comprehensive Cancer Center-Duarte

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Joanne Mortimer is an Oncologist practicing medicine in Duarte, California. Dr. Mortimer is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 8 other conditions, according to our data. Her clinical expertise encompasses Breast Cancer, Triple-Negative Breast Cancer, Inflammatory Breast Cancer, HER-2 Positive Breast Cancer, and Colonoscopy.

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

    Adventist Health Glendale

    1509 Wilson Ter, 
    Glendale, CA 
     (4.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Samuel Carvajal is a General Surgeon practicing medicine in Glendale, California. Dr. Carvajal is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses Hernia, Acrospiroma, Juvenile Angiofibroma, Bladder Reconstruction, and Hernia Surgery. Dr. Carvajal is currently accepting new patients.

    Experienced in Colonoscopy
    Experienced in Colonoscopy
    Referral may be required

    City Of Hope Comprehensive Cancer Center-Duarte

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English

    Vinod Pullarkat is an Oncologist practicing medicine in Duarte, California. Dr. Pullarkat is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Acute Lymphoblastic Leukemia (ALL), Acute Myeloid Leukemia (AML), Leukemia, Bone Marrow Aspiration, and Colonoscopy.

    Experienced in Colonoscopy
    Experienced in Colonoscopy
    Referral may be required

    City Of Hope Comprehensive Cancer Center-Duarte

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sumanta Pal is an Oncologist practicing medicine in Duarte, California. Dr. Pal is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 25 other conditions, according to our data. His clinical expertise encompasses Renal Cell Carcinoma (RCC), Urothelial Cancer, Bladder Cancer, Nephrectomy, and Lymphadenectomy.

    Experienced in Colonoscopy
    Hematology
    Experienced in Colonoscopy
    Hematology
    Referral may be required

    City Of Hope's Helford Clinical Research Hospital

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English

    David Snyder is a Hematologist practicing medicine in Duarte, California. Dr. Snyder 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 Philadelphia-Negative Chronic Myeloid Leukemia, Chronic Myelogenous Leukemia (CML), Childhood Acute Myeloid Leukemia, Bone Marrow Aspiration, and Colonoscopy.

    Experienced in Colonoscopy
    Experienced in Colonoscopy
    Referral may be required

    City Of Hope Comprehensive Cancer Center-Duarte

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Marwan Fakih is an Oncologist practicing medicine in Duarte, California. Dr. Fakih is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Squamous Cell Carcinoma of the Anal Canal (SCAC), Anal Cancer, Liver Embolization, and Endoscopy.

    Experienced in Colonoscopy
    Experienced in Colonoscopy
    Referral may be required

    City Of Hope Comprehensive Cancer Center-Duarte

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Tanya Dorff is an Oncologist practicing medicine in Duarte, California. Dr. Dorff is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 22 other conditions, according to our data. Her clinical expertise encompasses Prostate Cancer, Penile Cancer, Familial Prostate Cancer, Prostatectomy, and Orchiectomy.

    Experienced in Colonoscopy
    Surgical Oncology
    Experienced in Colonoscopy
    Surgical Oncology
    Referral may be required

    City Of Hope's Helford Clinical Research Hospital

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Kurt Melstrom is a Surgical Oncologist practicing medicine in Duarte, California. Dr. Melstrom 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 Colorectal Cancer, Familial Colorectal Cancer, Squamous Cell Carcinoma of the Anal Canal (SCAC), Hernia Surgery, and Bladder Reconstruction.

    Experienced in Colonoscopy
    Experienced in Colonoscopy
    Referral may be required

    Ravi Salgia, M.D., PH.D.

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Ravi Salgia is an Oncologist practicing medicine in Duarte, California. Dr. Salgia is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Lung Cancer, Non-Small Cell Lung Cancer (NSCLC), Small Cell Lung Cancer (SCLC), Tissue Biopsy, and Gastrostomy.

    Experienced in Colonoscopy
    Experienced in Colonoscopy
    Referral may be required

    City Of Hope's Helford Clinical Research Hospital

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English

    Dean Lim is an Oncologist practicing medicine in Duarte, California. Dr. Lim is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Carcinoid Syndrome, Familial Colorectal Cancer, Colorectal Cancer, Colonoscopy, and Endoscopy.

    Experienced in Colonoscopy
    Experienced in Colonoscopy
    Referral may be required

    Matthew Genyeh Mei, M.D.

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Matthew Mei is an Oncologist practicing medicine in Duarte, California. Dr. Mei is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 39 other conditions, according to our data. His clinical expertise encompasses Hodgkin Lymphoma, Classical Hodgkin Lymphoma, Non-Hodgkin Lymphoma, Bone Marrow Aspiration, and Colonoscopy.

    Experienced in Colonoscopy
    Hematology
    Experienced in Colonoscopy
    Hematology
    Referral may be required

    City Of Hope's Helford Clinical Research Hospital

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English

    Joseph Chao is a Hematologist practicing medicine in Duarte, California. Dr. Chao 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 Gastroesophageal Junction Cancer, PIK3CA-Related Overgrowth Spectrum, Agranulocytosis, Endoscopy, and Tissue Biopsy.

    Experienced in Colonoscopy
    Surgical Oncology
    Experienced in Colonoscopy
    Surgical Oncology
    Referral may be required

    City Of Hope's Helford Clinical Research Hospital

    1500 Duarte Rd, 
    Duarte, CA 
     (10.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Lily Lai is a Surgical Oncologist practicing medicine in Duarte, California. Dr. Lai is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Colorectal Cancer, Familial Colorectal Cancer, Gastroesophageal Junction Cancer, Hernia Surgery, and Bone Marrow Aspiration.

    Showing 1-20 of 458

    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 pasadena, 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 pasadena, 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 pasadena, 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 pasadena, 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 pasadena, 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 pasadena, 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 pasadena, 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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