The 20 Best Colonoscopy Doctors near Arcadia, CA

Find the Experts and Specialists who perform Colonoscopy

Last Updated: 04/28/2026

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MediFind found 316 doctor with experience in Colonoscopy near Arcadia, CA. Of these, 265 are Experienced, 49 are Advanced and 1 are Distinguished.

Location
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316 providers found
    Distinguished in Colonoscopy
    Gastroenterology
    Distinguished in Colonoscopy
    Gastroenterology

    Trilokesh Kidambi, M.D.

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

    Trilokesh Kidambi is a Gastroenterologist practicing medicine in Duarte, California. Dr. Kidambi is rated as a Distinguished provider by MediFind in Colonoscopy. He is also highly rated in 32 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Familial Colorectal Cancer, Colorectal Cancer, Colonoscopy, and Endoscopy.

    Experienced in Colonoscopy
    Radiology
    Experienced in Colonoscopy
    Radiology

    USC Arcadia Hospital

    300 W Huntington Dr, 
    Arcadia, CA 
     (0.5 miles away)
    Languages Spoken:
    English

    Kok Tan is a Radiologist practicing medicine in Arcadia, California. Dr. Tan is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 45 other conditions, according to our data. His clinical expertise encompasses Stroke, Pleural Effusion, Pleurisy, Liver Embolization, and Vertebroplasty.

    Experienced in Colonoscopy
    Cardiology
    Experienced in Colonoscopy
    Cardiology

    Optum-Monrovia

    831 E Huntington Dr Ste 101, 
    Monrovia,, CA 
     (2.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Co Hu is a Cardiologist practicing medicine in Monrovia,, California. Dr. Hu is rated as an Experienced provider by MediFind in Colonoscopy. His clinical expertise encompasses Atherosclerosis, Coronary Heart Disease, Angina, Colonoscopy, and Endoscopy.

    Learn about our expert tiers
    Experienced in Colonoscopy
    Cardiology
    Experienced in Colonoscopy
    Cardiology

    Graidukel Med Inc.

    2750 E Washington Blvd Ste 370, 
    Pasadena,, CA 
     (3.1 miles away)
    Languages Spoken:
    English

    Iduama Kelly is a Cardiologist practicing medicine in Pasadena,, California. Dr. Kelly 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 Sengers Syndrome, Metabolic Syndrome, Heart Failure with Preserved Ejection Fraction (HFpEF), Pacemaker Implantation, and Colonoscopy.

    Advanced in Colonoscopy
    Advanced in Colonoscopy

    Ryotaro Nakamura, M.D.

    1500 Duarte Rd, 
    Duarte, CA 
     (3.7 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 38 other conditions, according to our data. His clinical expertise encompasses Graft Versus Host Disease (GvHD), Chronic Graft Versus Host Disease (cGvHD), Myelodysplastic Syndrome (MDS), Bone Marrow Transplant, and Bone Marrow Aspiration.

    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology

    Jacob Korula M.D. A Professional Medical Corp.

    622 W Duarte Rd Ste 302, 
    Arcadia, CA 
     (1.1 miles away)
    Languages Spoken:
    English

    Jacob Korula is a Gastroenterologist practicing medicine in Arcadia, California. Dr. Korula is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Ascites, Hepatitis, Liver Cancer, Gastrectomy, and Hemorrhoidectomy.

    Advanced in Colonoscopy
    Gastroenterology | Internal Medicine
    Advanced in Colonoscopy
    Gastroenterology | Internal Medicine

    Hanson T. Lee, Md, Inc.

    612 W Duarte Rd, 
    Arcadia, CA 
     (1.3 miles away)
    Experience:
    28+ years
    Languages Spoken:
    English

    Hanson Lee is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Arcadia, California. He has been practicing medicine for over 28 years. Dr. Lee is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Gastric Dysmotility, Chronic Erosive Gastritis, Gastritis, Endoscopy, and Gastrostomy. Dr. Lee is board certified in American Board Of Internal Medicine.

    Advanced in Colonoscopy
    Gastroenterology | Internal Medicine
    Advanced in Colonoscopy
    Gastroenterology | Internal Medicine

    Donald J Portocarrero Do, Inc

    638 W Duarte Rd, 
    Arcadia, CA 
     (1.4 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English

    Donald Portocarrero is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Arcadia, California. He has been practicing medicine for over 18 years. Dr. Portocarrero is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 40 other conditions, according to our data. His clinical expertise encompasses Chronic Erosive Gastritis, Gastric Dysmotility, Menetrier Disease, Endoscopy, and Gastrectomy. Dr. Portocarrero is board certified in American Board Of Internal Medicine.

    Experienced in Colonoscopy
    Medical Genetics | Oncology
    Experienced in Colonoscopy
    Medical Genetics | Oncology

    City Of Hope Medical Foundation

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

    Stephen Gruber is a Medical Genetics specialist and an Oncologist practicing medicine in Duarte, California. Dr. Gruber is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Familial Colorectal Cancer, Lynch Syndrome, Melanoma, and Colonoscopy.

    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology

    City Of Hope's Helford Clinical Research Hospital

    1500 Duarte Rd, 
    Duarte, CA 
     (3.7 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.

    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology

    Gregory E. Idos, M.D., M.S.

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

    Gregory Idos is a Gastroenterologist practicing medicine in Duarte, California. Dr. Idos is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, DICER1 Syndrome, Familial Colorectal Cancer, Colonoscopy, and Endoscopy.

    Advanced in Colonoscopy
    Advanced in Colonoscopy

    Ibrahim T. Aldoss, M.D.

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

    Ibrahim Aldoss is an Oncologist practicing medicine in Duarte, California. Dr. Aldoss is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 25 other conditions, according to our data. His clinical expertise encompasses Acute Lymphoblastic Leukemia (ALL), Leukemia, Acute Myeloid Leukemia (AML), Bone Marrow Aspiration, and Bone Marrow Transplant.

    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology

    Dupinder Singh, M.D.

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

    Dupinder Singh is a Gastroenterologist practicing medicine in Duarte, California. Dr. Singh is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 33 other conditions, according to our data. His clinical expertise encompasses Jaundice, Dubin-Johnson Syndrome, Rotor Syndrome, Colonoscopy, and Lithotripsy.

    Advanced in Colonoscopy
    Advanced in Colonoscopy

    Anthony S. Stein, M.D.

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

    Anthony Stein is an Oncologist practicing medicine in Duarte, California. Dr. Stein is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Acute Myeloid Leukemia (AML), Acute Lymphoblastic Leukemia (ALL), Leukemia, Bone Marrow Transplant, and Bone Marrow Aspiration.

    Experienced in Colonoscopy
    Hematology | Oncology
    Experienced in Colonoscopy
    Hematology | Oncology

    Stephen J. Forman, M.D.

    1500 Duarte Rd, 
    Duarte, CA 
     (3.7 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 44 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
    Oncology
    Experienced in Colonoscopy
    Oncology

    Yan Xing, M.D., PH.D.

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

    Yan Xing is an Oncologist practicing medicine in Duarte, California. Dr. Xing is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 13 other conditions, according to our data. Her clinical expertise encompasses Melanoma, Merkel Cell Carcinoma, Adenoid Cystic Carcinoma, Epithelial-Myoepithelial Carcinoma, and Colonoscopy.

    Experienced in Colonoscopy
    Experienced in Colonoscopy

    Alex Herrera, M.D.

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

    Alex Herrera is an Oncologist practicing medicine in Duarte, California. 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 26 other conditions, according to our data. His clinical expertise encompasses Hodgkin Lymphoma, Classical Hodgkin Lymphoma, Diffuse Large B-Cell Lymphoma (DLBCL), Bone Marrow Transplant, and Bone Marrow Aspiration. Dr. Herrera is board certified in American Board Of Internal Medicine, Hematology and American Board Of Internal Medicine, Oncology.

    Experienced in Colonoscopy
    Experienced in Colonoscopy

    Joanne Mortimer, M.D., F.A.C.P., F.A.S.C.O.

    1500 Duarte Rd, 
    Duarte, CA 
     (3.7 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
    Experienced in Colonoscopy

    Brian Ball, M.D.

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

    Brian Ball is an Oncologist practicing medicine in Duarte, California. Dr. Ball 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 Acute Myeloblastic Leukemia with Maturation, Acute Myeloblastic Leukemia without Maturation, Childhood Acute Myeloid Leukemia, Bone Marrow Aspiration, and Colonoscopy. Dr. Ball is board certified in Internal Medican, Hematology, and Oncology.

    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology

    Zahn & Associates A Medical Corporation

    1026 E Las Tunas Dr, 
    San Gabriel, CA 
     (3.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Chester Zahn is a Gastroenterologist practicing medicine in San Gabriel, California. Dr. Zahn is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Gastroparesis, Indigestion, Gastrostomy, and Gastrectomy.

    Showing 1-20 of 316

    Last Updated: 04/28/2026

    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 Arcadia, 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 Arcadia, 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 Arcadia, 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 Arcadia, 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 Arcadia, 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 Arcadia, 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 Arcadia, 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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