The 20 Best Colonoscopy Doctors near Oceanside, NY

Find the Experts and Specialists who perform Colonoscopy

Last Updated: 09/26/2026

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MediFind found 338 doctor with experience in Colonoscopy near Oceanside, NY. Of these, 295 are Experienced, 38 are Advanced and 1 are Elite.

Location
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338 providers found
    Experienced in Colonoscopy
    Gastroenterology
    Experienced in Colonoscopy
    Gastroenterology
    Referral may be required

    Northwell Health Physician Partners Pelvic Health And Surgical Specialties At Rockville Centre

    36 Lincoln Avenue, 2nd Floor, 
    Rockville Centre, NY 
     (1.3 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Accepting New Patients

    Swathi Gopalakrishnan is a Gastroenterologist practicing medicine in Rockville Centre, New York. She has been practicing medicine for over 17 years. Dr. Gopalakrishnan 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 Gastrointestinal Bleeding, Angiodysplasia of the Colon, Watermelon Stomach, Colonoscopy, and Gastrectomy. Dr. Gopalakrishnan is currently accepting new patients.

    Gastroenterology
    Gastroenterology
    Referral may be required

    Northwell Health Physician Partners Medicine Specialties And Cardiology At Lynbrook

    733 Sunrise Hwy, Third Floor, 
    Lynbrook, NY 
     (2.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Meyer Blumstein is a Gastroenterologist practicing medicine in Lynbrook, New York. Dr. Blumstein is rated as undefined provider by MediFind in Colonoscopy. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Hemorrhoids, Diverticular Disease, Celiac Disease, and Colonoscopy. Dr. Blumstein is board certified in American Board Of Internal Medicine. Dr. Blumstein is currently accepting new patients.

    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology
    Referral may be required
    210 East Sunrise Highway, Suite 304, 
    Valley Stream, NY 
     (3.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Brandon Rieders is a Gastroenterologist practicing medicine in Valley Stream, New York. Dr. Rieders is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Gastric Dysmotility, Campylobacter Infection, Helicobacter Pylori Infection, Colonoscopy, and Endoscopy. Dr. Rieders is currently accepting new patients.

    Learn about our expert tiers
    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology
    Referral may be required
    306 Hempstead Avenue, 
    Malverne, NY 
     (3.0 miles away)
    Languages Spoken:
    English, Hebrew
    Accepting New Patients
    Offers Telehealth

    Zachary Marwil is a Gastroenterologist practicing medicine in Malverne, New York. Dr. Marwil is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Diarrhea, Gastroesophageal Reflux Disease (GERD), Familial Adenomatous Polyposis, Colonoscopy, and Gastrectomy. Dr. Marwil is board certified in American Board Of Internal Medicine/Gastroenterology. Dr. Marwil is currently accepting new patients.

    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology
    Referral may be required
    3 North Main Street, 
    Freeport, NY 
     (3.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Iheanyichukwu Aja-Onu is a Gastroenterologist practicing medicine in Freeport, New York. Dr. Aja-Onu is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Bile Duct Obstruction, Gastrointestinal Bleeding, Acute Pancreatitis, Gastrectomy, and Colonoscopy. Dr. Aja-Onu is currently accepting new patients.

    Experienced in Colonoscopy
    General Surgery | Colorectal Surgery
    Experienced in Colonoscopy
    General Surgery | Colorectal Surgery
    Referral may be required
    3003 New Hyde Park Road, Suite 309, 
    New Hyde Park, NY 
     (9.0 miles away)
    Languages Spoken:
    English, Italian, Portuguese, Spanish
    Accepting New Patients

    Tereza Sardinha is a General Surgeon and a Colorectal Surgeon practicing medicine in New Hyde Park, New York. Dr. Sardinha 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 Cholecystitis, Retroperitoneal Inflammation, Perianal Streptococcal Cellulitis, Hernia Surgery, and Bladder Reconstruction. Dr. Sardinha is board certified in American Board Of Colon & Rectal Surgery and American Board Of Surgery. Dr. Sardinha is currently accepting new patients.

    Experienced in Colonoscopy
    Colorectal Surgery | General Surgery
    Experienced in Colonoscopy
    Colorectal Surgery | General Surgery
    Referral may be required
    3003 New Hyde Park Road, Suite 309, 
    New Hyde Park, NY 
     (9.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Marc Sher is a Colorectal Surgeon and a General Surgeon practicing medicine in New Hyde Park, New York. Dr. Sher 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 Gastrointestinal Bleeding, Hernia, Cholecystitis, Hernia Surgery, and Bladder Reconstruction. Dr. Sher is board certified in American Board Of Colon & Rectal Surgery and American Board Of Surgery. Dr. Sher is currently accepting new patients.

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

    South Nassau Communities Hospital

    1 Healthy Way, 
    Oceanside, NY 
     (1.0 miles away)
    Languages Spoken:
    English

    Sadat Iqbal is a Gastroenterologist practicing medicine in Oceanside, New York. Dr. Iqbal 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 Jaundice, Hereditary Pancreatitis, Colorectal Cancer, Colonoscopy, and Gastrostomy.

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

    South Nassau Communities Hospital

    1 Healthy Way, 
    Oceanside, NY 
     (1.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Pranay Srivastava is a Gastroenterologist practicing medicine in Oceanside, New York. Dr. Srivastava 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 Gastritis, Neuroendocrine Tumor, Chronic Erosive Gastritis, Colonoscopy, and Endoscopy.

    Experienced in Colonoscopy
    Family Medicine
    Experienced in Colonoscopy
    Family Medicine

    South Nassau Communities Hospital

    1 Healthy Way, 
    Oceanside, NY 
     (1.0 miles away)
    Languages Spoken:
    English

    Naeem Rehman is a primary care provider, practicing in Family Medicine in Oceanside, New York. Dr. Rehman 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 End-Stage Renal Disease (ESRD), Sepsis, Peptic Ulcer, Colonoscopy, and Gastrostomy.

    Experienced in Colonoscopy
    Experienced in Colonoscopy
    Referral may be required

    South Nassau Communities Hospital

    1 Healthy Way, 
    Oceanside, NY 
     (1.0 miles away)
    Languages Spoken:
    English

    Panina Niyazova is a Geriatrics provider practicing medicine in Oceanside, New York. Dr. Niyazova 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, Pneumonia, Necrosis, Gastrostomy, and Colonoscopy.

    Experienced in Colonoscopy
    Family Medicine
    Experienced in Colonoscopy
    Family Medicine

    South Nassau Communities Hospital

    1 Healthy Way, 
    Oceanside, NY 
     (1.0 miles away)
    Languages Spoken:
    English

    Jamil Ahmed is a primary care provider, practicing in Family Medicine in Oceanside, New York. Dr. Ahmed is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Acute Pancreatitis, Acute Kidney Failure, Pleurisy, Colonoscopy, and Gastrostomy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    South Nassau Communities Hospital

    1 Healthy Way, 
    Oceanside, NY 
     (1.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Rafael Sezan is a primary care provider, practicing in Internal Medicine in Oceanside, New York. Dr. Sezan 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 Sepsis, Gastrointestinal Bleeding, Peptic Ulcer, Colonoscopy, and Gastrostomy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    South Nassau Communities Hospital

    1 Healthy Way, 
    Oceanside, NY 
     (1.0 miles away)
    Languages Spoken:
    English

    Samuel Gonna is a primary care provider, practicing in Internal Medicine in Oceanside, New York. Dr. Gonna is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Gangrene, Type 2 Diabetes (T2D), Sepsis, Gastrostomy, and Colonoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    South Nassau Communities Hospital

    1 Healthy Way, 
    Oceanside, NY 
     (1.0 miles away)
    Languages Spoken:
    English

    Hai-wen Ma is a primary care provider, practicing in Internal Medicine in Oceanside, New York. Dr. Ma 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 Esophagitis, Gallstones, Gallbladder Disease, Gastrostomy, and Colonoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    South Nassau Communities Hospital

    1 Healthy Way, 
    Oceanside, NY 
     (1.0 miles away)
    Languages Spoken:
    English

    Mohammed Ellahi is a primary care provider, practicing in Internal Medicine in Oceanside, New York. Dr. Ellahi 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 Sepsis, Ogilvie Syndrome, Pneumonia, Hip Replacement, and Colonoscopy.

    Experienced in Colonoscopy
    Experienced in Colonoscopy
    Referral may be required

    South Nassau Communities Hospital

    1 Healthy Way, 
    Oceanside, NY 
     (1.0 miles away)
    Languages Spoken:
    English

    Ioannis Kariolis is a Geriatrics provider practicing medicine in Oceanside, New York. Dr. Kariolis 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 Sepsis, Pneumonia, Necrosis, Gastrostomy, and Bone Marrow Aspiration.

    Experienced in Colonoscopy
    Family Medicine
    Experienced in Colonoscopy
    Family Medicine

    South Nassau Communities Hospital

    1 Healthy Way, 
    Oceanside, NY 
     (1.0 miles away)
    Languages Spoken:
    English

    Vivianne Sambour is a primary care provider, practicing in Family Medicine in Oceanside, New York. Dr. Sambour is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Hypertensive Heart Disease, Sepsis, Gastrointestinal Bleeding, Gastrostomy, and Endoscopy.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    South Nassau Communities Hospital

    1 Healthy Way, 
    Oceanside, NY 
     (1.0 miles away)
    Languages Spoken:
    English

    Dinesh Sethi is a primary care provider, practicing in Internal Medicine in Oceanside, New York. Dr. Sethi is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Stroke, Muscle Atrophy, End-Stage Renal Disease (ESRD), Colonoscopy, and Endoscopy.

    Experienced in Colonoscopy
    Cardiology | Cardiac Electrophysiology
    Experienced in Colonoscopy
    Cardiology | Cardiac Electrophysiology
    Referral may be required

    Icahn School Of Medicine At Mount Sinai

    1 Healthy Way, 
    Oceanside, NY 
     (1.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Noah Moss is a Cardiologist and a Cardiac Electrophysiologist practicing medicine in Oceanside, New York. Dr. Moss is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Heart Failure, Cardiogenic Shock, Cardiomyopathy, Heart Transplant, and Endoscopy.

    Showing 1-20 of 338

    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 Oceanside, NY?

    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 Oceanside, NY?

    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 Oceanside, NY?

    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 Oceanside, NY?

    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 Oceanside, NY?

    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 Oceanside, NY?

    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 Oceanside, NY?

    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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