The 20 Best Colonoscopy Doctors near Walnut Creek, CA

Find the Experts and Specialists who perform Colonoscopy

Last Updated: 04/28/2026

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MediFind found 111 doctor with experience in Colonoscopy near Walnut Creek, CA. Of these, 103 are Experienced, 7 are Advanced and 1 are Elite.

Location
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111 providers found
    Elite in Colonoscopy
    Gastroenterology
    Elite in Colonoscopy
    Gastroenterology

    Kaiser Permanente Walnut Creek Medical Center - Gastroenterology

    1515 Newell Avenue, 
    Walnut Creek, CA 
     (2.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Theodore Levin is a Gastroenterologist practicing medicine in Walnut Creek, California. Dr. Levin is rated as an Elite provider by MediFind in Colonoscopy. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Familial Colorectal Cancer, Turcot Syndrome, Colonoscopy, and Endoscopy. Dr. Levin is currently accepting new patients.

    Experienced in Colonoscopy
    Colorectal Surgery
    Experienced in Colonoscopy
    Colorectal Surgery

    Office

    1479 Ygnacio Valley Rd Ste 200, 
    Walnut Creek, CA 
     (3.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Salvador Guevara is a Colorectal Surgeon practicing medicine in Walnut Creek, California. Dr. Guevara 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 Rectal Prolapse, Anal Fissure, Proctitis, Bladder Reconstruction, and Hernia Surgery.

    Experienced in Colonoscopy
    Colorectal Surgery
    Experienced in Colonoscopy
    Colorectal Surgery

    Office

    1479 Ygnacio Valley Rd Ste 200, 
    Walnut Creek, CA 
     (3.7 miles away)
    Languages Spoken:
    English

    Piyush Aggarwal is a Colorectal Surgeon practicing medicine in Walnut Creek, California. Dr. Aggarwal 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 Mesenteric Venous Thrombosis, Hemorrhoids, Bowel Incontinence, Bladder Reconstruction, and Hernia Surgery.

    Learn about our expert tiers
    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology

    Advanced Heart Failure At Walnut Creek

    1450 Treat Blvd Ste 200, 
    Walnut Creek, CA 
     (0.7 miles away)
    Languages Spoken:
    English

    Hongha Vu James is a Gastroenterologist practicing medicine in Walnut Creek, California. Dr. Vu James is rated as an Advanced provider by MediFind in Colonoscopy. She is also highly rated in 30 other conditions, according to our data. Her clinical expertise encompasses Diverticular Disease, Familial Adenomatous Polyposis, Hemorrhoids, Colonoscopy, and Gastrectomy.

    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology

    John Muir Medical Center Walnut Creek

    1601 Ygnacio Valley Rd, 
    Walnut Creek, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Matthew Chin is a Gastroenterologist practicing medicine in Walnut Creek, California. Dr. Chin is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 44 other conditions, according to our data. His clinical expertise encompasses Bile Duct Obstruction, Familial Adenomatous Polyposis, Juvenile Polyposis Syndrome, Endoscopy, and Colonoscopy.

    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology

    Office

    1479 Ygnacio Valley Rd Ste 150, 
    Walnut Creek, CA 
     (3.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Kanwar Gill is a Gastroenterologist practicing medicine in Walnut Creek, California. Dr. Gill is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 86 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Familial Adenomatous Polyposis, Angiodysplasia of the Colon, Gastrectomy, and Colonoscopy.

    Experienced in Colonoscopy
    Experienced in Colonoscopy

    Office

    1450 Treat Blvd Ste 220A, 
    Walnut Creek, CA 
     (0.7 miles away)
    Languages Spoken:
    English

    Champak Venkitachalam is a primary care provider, practicing in Family Medicine in Walnut Creek, California. Dr. Venkitachalam is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Sepsis, Peptic Ulcer, Necrosis, Vertebroplasty, and Bone Graft.

    Experienced in Colonoscopy
    Gastroenterology
    Experienced in Colonoscopy
    Gastroenterology

    Office

    1479 Ygnacio Valley Rd, 
    Walnut Creek, CA 
     (1.2 miles away)
    Languages Spoken:
    English

    Shireen Ghorbani is a Gastroenterologist practicing medicine in Walnut Creek, California. Dr. Ghorbani 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 Attenuated Familial Adenomatous Polyposis, Cronkhite-Canada Disease, Juvenile Polyposis Syndrome, Endoscopy, and Gastrectomy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    Permanente Medical Group Inc

    1515 Newell Ave, 
    Walnut Creek, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Eshandeep Boparai is a primary care provider, practicing in Internal Medicine in Walnut Creek, California. Dr. Boparai is rated as an Experienced provider by MediFind in Colonoscopy. His clinical expertise encompasses Colorectal Polyps, Viral Gastroenteritis, Ulcerative Colitis, Colonoscopy, and Endoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    John Muir Medical Center Walnut Creek

    1601 Ygnacio Valley Rd, 
    Walnut Creek, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Mariel Pastrana is an Internal Medicine provider practicing medicine in Walnut Creek, California. Dr. Pastrana is rated as an Experienced provider by MediFind in Colonoscopy. Her clinical expertise encompasses Heart Failure with Preserved Ejection Fraction (HFpEF), Gallbladder Disease, Liver Failure, Colonoscopy, and Gastrostomy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    John Muir Medical Center Walnut Creek

    1601 Ygnacio Valley Rd, 
    Walnut Creek, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Viktoriya Sharp is a primary care provider, practicing in Internal Medicine in Walnut Creek, California. Dr. Sharp is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 14 other conditions, according to our data. Her clinical expertise encompasses Stroke, Sepsis, Pneumocystis Jiroveci Pneumonia, Hip Replacement, and Colonoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    John Muir Medical Center Walnut Creek

    1601 Ygnacio Valley Rd, 
    Walnut Creek, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sukhjinder Brah is a primary care provider, practicing in Internal Medicine in Walnut Creek, California. Dr. Brah 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, Sepsis, Stroke, Colonoscopy, and Endoscopy.

    Experienced in Colonoscopy
    Palliative Medicine
    Experienced in Colonoscopy
    Palliative Medicine

    John Muir Medical Center Walnut Creek

    1601 Ygnacio Valley Rd, 
    Walnut Creek, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Smita Chandra is a primary care provider, practicing in Palliative Medicine in Walnut Creek, California. Dr. Chandra 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 Necrosis, Volkmann Contracture, Enlarged Liver, Colonoscopy, and Endoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    John Muir Medical Center Walnut Creek

    1601 Ygnacio Valley Rd, 
    Walnut Creek, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    George Slater is a primary care provider, practicing in Internal Medicine in Walnut Creek, California. Dr. Slater is rated as an Experienced provider by MediFind in Colonoscopy. His clinical expertise encompasses Sepsis, Stroke, Subdural Hematoma, Colonoscopy, and Gastrostomy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    John Muir Medical Center Walnut Creek

    1601 Ygnacio Valley Rd, 
    Walnut Creek, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Scott Morehouse is an Internal Medicine provider practicing medicine in Walnut Creek, California. Dr. Morehouse 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 Heart Failure with Preserved Ejection Fraction (HFpEF), Gallbladder Disease, Traumatic Brain Injury, Gastrostomy, and Endoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    John Muir Medical Center Walnut Creek

    1601 Ygnacio Valley Rd, 
    Walnut Creek, CA 
     (1.3 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English

    Louisa Dresser is an Internal Medicine provider practicing medicine in Walnut Creek, California. She has been practicing medicine for over 17 years. Dr. Dresser is rated as an Experienced provider by MediFind in Colonoscopy. Her clinical expertise encompasses Heart Failure with Preserved Ejection Fraction (HFpEF), Saddle Pulmonary Embolism, Pediatric Low-Grade Glioma (pLGG), Gastrostomy, and Colonoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    John Muir Medical Center Walnut Creek

    1601 Ygnacio Valley Rd, 
    Walnut Creek, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Teodora Dumitrescu is a primary care provider, practicing in Internal Medicine in Walnut Creek, California. Dr. Dumitrescu is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Sepsis, Peptic Ulcer, Nephrosclerosis, Colonoscopy, and Endoscopy.

    Experienced in Colonoscopy
    Experienced in Colonoscopy

    John Muir Medical Center Walnut Creek

    1601 Ygnacio Valley Rd, 
    Walnut Creek, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Babak Edraki is an Oncologist practicing medicine in Walnut Creek, California. Dr. Edraki is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 32 other conditions, according to our data. His clinical expertise encompasses Endometrial Cancer, Ovarian Carcinosarcoma, Endometrial Stromal Sarcoma, Hernia Surgery, and Ureteral Reconstruction.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    John Muir Medical Center Walnut Creek

    1601 Ygnacio Valley Rd, 
    Walnut Creek, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Neeta Milasincic is a primary care provider, practicing in Internal Medicine in Walnut Creek, California. Dr. Milasincic 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, Peptic Ulcer, Necrosis, Colonoscopy, and Endoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    John Muir Medical Center Walnut Creek

    1601 Ygnacio Valley Rd, 
    Walnut Creek, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Tiffany King is an Internal Medicine provider practicing medicine in Walnut Creek, California. Dr. King is rated as an Experienced provider by MediFind in Colonoscopy. Her clinical expertise encompasses Heart Failure with Preserved Ejection Fraction (HFpEF), Febrile Neutropenia, Gallbladder Disease, Hip Replacement, and Endoscopy.

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    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 Walnut Creek, 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 Walnut Creek, 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 Walnut Creek, 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 Walnut Creek, 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 Walnut Creek, 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 Walnut Creek, 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 Walnut Creek, 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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