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    Last Updated: 10/30/2025

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    MediFind found 75 doctor with experience in Colorectal Cancer near Castro Valley, CA. Of these, 55 are Experienced, 16 are Advanced, 3 are Distinguished and 1 are Elite.

    Location
    LocationClose
    75 providers found
      Distinguished in Colorectal Cancer
      Hematology Oncology | Hematology | Oncology
      Distinguished in Colorectal Cancer
      Hematology Oncology | Hematology | Oncology
      13847 E 14th St, Suite 217, 
      San Leandro, CA 
       (4.0 miles away)
      Languages Spoken:
      English

      Ostap Melnyk is a Hematologist Oncology specialist and a Hematologist in San Leandro, California. Dr. Melnyk is rated as a Distinguished provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Colorectal Cancer, Familial Colorectal Cancer, Paget Disease of the Breast, and Breast Cancer.

      Elite in Colorectal Cancer
      Gastroenterology
      Elite in Colorectal Cancer
      Gastroenterology

      Kaiser Permanente Walnut Creek Medical Center - Gastroenterology

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

      Theodore Levin is a Gastroenterologist in Walnut Creek, California. Dr. Levin is rated as an Elite provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Colorectal Cancer, Familial Colorectal Cancer, Turcot Syndrome, Colonoscopy, and Endoscopy. Dr. Levin is currently accepting new patients.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Advanced in Colorectal Cancer
      Hematology Oncology | Hematology | Oncology
      Advanced in Colorectal Cancer
      Hematology Oncology | Hematology | Oncology

      Epic Care

      20400 Lake Chabot Rd, Suite 102, 
      Castro Valley, CA 
       (0.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Srikanth Reddy is a Hematologist Oncology specialist and a Hematologist in Castro Valley, California. Dr. Reddy is rated as an Advanced provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Paget Disease of the Breast, Breast Cancer, Pleuropulmonary Blastoma, and Angiosarcoma.

      Learn about our expert tiers
      Advanced in Colorectal Cancer
      Oncology | Hematology
      Advanced in Colorectal Cancer
      Oncology | Hematology
      20055 Lake Chabot Rd, #130, 
      Castro Valley, CA 
       (0.8 miles away)
      Languages Spoken:
      English

      Byron Wilson is an Oncologist and a Hematologist in Castro Valley, California. Dr. Wilson is rated as an Advanced provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Colorectal Cancer, Familial Colorectal Cancer, Prostate Cancer, and Familial Prostate Cancer.

      Advanced in Colorectal Cancer
      Internal Medicine
      Advanced in Colorectal Cancer
      Internal Medicine

      Gautam Pareek MD Inc

      1090 La Playa Dr, 
      Hayward, CA 
       (3.7 miles away)
      Languages Spoken:
      English, French, Hindi
      Offers Telehealth

      Gautam Pareek is a primary care provider, practicing in Internal Medicine in Hayward, California. Dr. Pareek is rated as an Advanced provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Necrosis, Endoscopy, and Gastrostomy.

      Experienced in Colorectal Cancer
      Hematology Oncology | Hematology | Oncology
      Experienced in Colorectal Cancer
      Hematology Oncology | Hematology | Oncology

      Epic Care

      20400 Lake Chabot Rd, Suite 102, 
      Castro Valley, CA 
       (0.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Neha Desouza is a Hematologist Oncology specialist and a Hematologist in Castro Valley, California. Dr. Desouza is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. Her top areas of expertise are Pulmonary Embolism, Anemia, Paget Disease of the Breast, and Breast Cancer.

      Experienced in Colorectal Cancer
      Family Medicine
      Experienced in Colorectal Cancer
      Family Medicine
      20100 Lake Chabot Rd, Suite 3, 
      Castro Valley, CA 
       (0.7 miles away)
      Languages Spoken:
      English

      Dariush Zandi is a primary care provider, practicing in Family Medicine in Castro Valley, California. Dr. Zandi is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Familial Hypopituitarism, Familial Hypertension, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

      Experienced in Colorectal Cancer
      Oncology | Hematology
      Experienced in Colorectal Cancer
      Oncology | Hematology
      20055 Lake Chabot Rd, #130, 
      Castro Valley, CA 
       (0.8 miles away)
      Languages Spoken:
      English

      Ricardo Da Roza is an Oncologist and a Hematologist in Castro Valley, California. Dr. Da Roza is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Pleuropulmonary Blastoma, Familial Colorectal Cancer, Smoldering Multiple Myeloma, and Multiple Myeloma.

      Experienced in Colorectal Cancer
      Gastroenterology
      Experienced in Colorectal Cancer
      Gastroenterology

      Gastroenterology Specialists Medical Group Inc A Medical Corporation

      19845 Lake Chabot Rd, Suite 104, 
      Castro Valley, CA 
       (0.8 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Jeffrey Singerman is a Gastroenterologist in Castro Valley, California. Dr. Singerman is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Familial Colorectal Cancer, Irritable Bowel Syndrome (IBS), Gastrointestinal Bleeding, Endoscopy, and Gastrectomy.

      Experienced in Colorectal Cancer
      Geriatrics | Internal Medicine
      Experienced in Colorectal Cancer
      Geriatrics | Internal Medicine

      Dr Aditya Jain MD Inc

      1532 150th Ave, 
      San Leandro, CA 
       (3.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Michael Marchiano is a primary care provider, practicing in Geriatrics and Internal Medicine in San Leandro, California. Dr. Marchiano is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Restrictive Cardiomyopathy (RCM), Coronary Heart Disease, Atherosclerosis, and Cardiomyopathy.

      Experienced in Colorectal Cancer
      Internal Medicine
      Experienced in Colorectal Cancer
      Internal Medicine
      15035 E 14th St, Suite G, 
      San Leandro, CA 
       (3.1 miles away)
      Experience:
      16+ years
      Languages Spoken:
      English
      Offers Telehealth

      Nehal Ghevariya is a primary care provider, practicing in Internal Medicine in San Leandro, California. Dr. Ghevariya has been practicing medicine for over 16 years and is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. Her top areas of expertise are Sitosterolemia, Type 2 Diabetes (T2D), Anemia, and Hypertension.

      Experienced in Colorectal Cancer
      Gastroenterology
      Experienced in Colorectal Cancer
      Gastroenterology

      Alameda Health System

      664 Southland Mall, 
      Hayward, CA 
       (3.5 miles away)
      Languages Spoken:
      English

      Taft Bhuket is a Gastroenterologist in Hayward, California. Dr. Bhuket is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Hepatitis, Hepatitis C, Hepatitis B, Liver Transplant, and Endoscopy.

      Experienced in Colorectal Cancer
      Internal Medicine
      Experienced in Colorectal Cancer
      Internal Medicine

      Alameda Health System

      13855 E 14th St, 
      San Leandro, CA 
       (3.9 miles away)
      Languages Spoken:
      English

      Rubinder Kaur is a primary care provider, practicing in Internal Medicine in San Leandro, California. Dr. Kaur is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. Her top areas of expertise are Necrosis, Gangrene, Cellulitis, Sepsis, and Endoscopy.

      Experienced in Colorectal Cancer
      Internal Medicine
      Experienced in Colorectal Cancer
      Internal Medicine
      13847 E 14th St, Suite 113, 
      San Leandro, CA 
       (4.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Chao Ho is a primary care provider, practicing in Internal Medicine in San Leandro, California. Dr. Ho is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Chronic Cough, Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

      Experienced in Colorectal Cancer
      Family Medicine
      Experienced in Colorectal Cancer
      Family Medicine
      13847 E 14th St, Suite 108, 
      San Leandro, CA 
       (4.0 miles away)
      Languages Spoken:
      English, Mandarin
      Offers Telehealth

      Christi Cheng is a primary care provider, practicing in Family Medicine in San Leandro, California. Dr. Cheng is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. Her top areas of expertise are Diabetic Nephropathy, Type 2 Diabetes (T2D), Bronchitis, and High Cholesterol.

      Experienced in Colorectal Cancer
      Internal Medicine
      Experienced in Colorectal Cancer
      Internal Medicine
      13847 E 14th St, #112, 
      San Leandro, CA 
       (4.0 miles away)
      Languages Spoken:
      English

      Ratnasothy Rajah is a primary care provider, practicing in Internal Medicine in San Leandro, California. Dr. Rajah is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Chronic Kidney Disease, Lung Metastases, Chronic Obstructive Pulmonary Disease (COPD), and Pulmonary Fibrosis.

      Experienced in Colorectal Cancer
      Hematology Oncology | Hematology | Oncology
      Experienced in Colorectal Cancer
      Hematology Oncology | Hematology | Oncology

      Epic Care

      13851 E 14th St, Suite 305, 
      San Leandro, CA 
       (4.0 miles away)
      Languages Spoken:
      English, Vietnamese
      Offers Telehealth

      Bao Dao is a Hematologist Oncology specialist and a Hematologist in San Leandro, California. Dr. Dao is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Thrombocytopenia, Follicular Lymphoma, Pulmonary Embolism, and Acute Monoblastic Leukemia (AmoL).

      Experienced in Colorectal Cancer
      Internal Medicine
      Experienced in Colorectal Cancer
      Internal Medicine

      Epic Care

      13851 E 14th St, Suite 305, 
      San Leandro, CA 
       (4.0 miles away)
      Languages Spoken:
      English, Russian
      Offers Telehealth

      Vladimir Titov is a primary care provider, practicing in Internal Medicine in San Leandro, California. Dr. Titov is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Hypertension, and High Cholesterol.

      Experienced in Colorectal Cancer
      Internal Medicine
      Experienced in Colorectal Cancer
      Internal Medicine
      13851 E 14th St, #305, 
      San Leandro, CA 
       (4.0 miles away)
      Languages Spoken:
      English

      Harley Schultz is a primary care provider, practicing in Internal Medicine in San Leandro, California. Dr. Schultz is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. His top areas of expertise are Malaria, Shingles, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

      Experienced in Colorectal Cancer
      Internal Medicine
      Experienced in Colorectal Cancer
      Internal Medicine

      Epic Care

      13851 E 14th St, Suite 305, 
      San Leandro, CA 
       (4.0 miles away)
      Experience:
      16+ years
      Languages Spoken:
      English
      Offers Telehealth

      Kruthika Proddatoori is a primary care provider, practicing in Internal Medicine in San Leandro, California. Dr. Proddatoori has been practicing medicine for over 16 years and is rated as an Experienced provider by MediFind in the treatment of Colorectal Cancer. Her top areas of expertise are High Cholesterol, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Hypertension.

      Showing 1-20 of 75

      Last Updated: 10/30/2025

      What is the definition of Colorectal Cancer?

      Colorectal cancer (CRC), also known as colon cancer, is a cancer that occurs in the large intestine (colon) or rectum and is the third most diagnosed cancer in the U.S., appearing more frequently in older men and women over the age of 50. Colorectal cancer often begins with appearance of small, non-cancerous (benign) growths (polyps) in the lining of the colon that are without symptoms. Some of these polyps can eventually develop into tumors and become colorectal cancer. Not all polyps become cancerous. The risk of polyps developing into cancer depends on the type of polyps, of which there are two main types:   1) Adenomas are considered pre-cancerous because they sometimes become adenocarcinomas, which represent 96% of colorectal cancers. 2) Hyperplastic and inflammatory polyps occur more often and are usually non-cancerous. Additional risks for polyps becoming cancerous include their size, number, or whether they have abnormal cells. If a polyp does become cancerous, the cancer can spread into the lining of the colon or rectum, and eventually through other layers. Once inside the wall of the colon or rectum, the cancer can then spread into the blood vessels and lymph system (nodes) or other, distant parts of the body (metastasis).  A few other, less common colorectal cancers include: Carcinoid Tumors that arise from hormone-producing cells in the colon. Gastrointestinal Stromal Tumors (GISTs) that arise from special cells in the lining of the colon, and which can be either cancerous or non-cancerous (benign); however, GISTs do not commonly appear in the colon. Lymphomas, which are cancers that begin in lymph nodes. Sarcomas, which begin in the blood vessels, muscles, or connective tissues, and rarely appear as colorectal cancers. Colorectal cancer is classified based on the following stages: Stage 0 – Carcinoma in Situ: abnormal cells may be found in the lining (mucosa) of the colon or rectum. Stage I – Cancer has formed in the lining (mucosa) of the colon or rectal wall and has spread to the submucosa (outer layer) or the muscle layer. Stage II (IIA, IIB, IIC) – Cancer has spread through the muscle of the colon or rectum to the outer layer (serosa); Cancer has spread through the outer layer (serosa) to the lining of the abdomen (peritoneum); Cancer has spread through the outer layer (serosa) to other organs. Stage III (IIA, IIIB, IIIC) – Cancer has spread through the mucosa (inner layer), submucosa (outer layer), or muscle layer of colon or rectum, or through the colon or rectal wall to four-to-six lymph nodes; Cancer has spread through the mucosa (inner layer), submucosa (outer layer), or muscle layer of colon or rectum, or through the colon or rectal wall to the mucosa that lines the abdomen (peritoneum) and one-to-three lymph nodes, or four-to six lymph nodes, or seven or more lymph nodes; Cancer has spread to the mucosa lining the abdomen (peritoneum) and four-to six lymph nodes, or seven or more lymph nodes, or to nearby organs. Stage IV (IVA, IVB, IVC) – Cancer has spread to one area or organ not near the colon or rectum, such as liver, lung, ovary, or distant lymph node; Cancer has spread to more than one area or organ, such as liver, lung, ovary, or distant lymph node; Cancer has spread to the lining of the wall of the abdomen (peritoneum) and may have spread to other organs. The level of staging for colorectal cancer determines its treatment and outcomes (prognosis).

      What type of doctors treat colorectal cancer?  

      Colorectal cancer is treated by a team of specialists who collaborate to create the best care plan. Key doctors include: 

      • Colorectal surgeons: These specialists perform surgeries to remove cancerous tissues from the colon or rectum. They also handle complications or follow-up surgeries if needed. 
      • Medical oncologists: These doctors use treatments like chemotherapy, targeted therapy, or immunotherapy to manage cancer, especially if it has spread. 
      • Radiation oncologists: They use radiation therapy to shrink tumors or destroy cancer cells. Radiation is often used for rectal cancer. 
      • Gastroenterologists: These doctors focus on diagnosing and treating digestive system disorders. While they perform colonoscopies to detect cancer, they do not treat it. 

      A colorectal doctor typically refers to a colorectal surgeon, while a gastroenterologist focuses on diagnosing and managing digestive disorders. 

      What are the symptoms of colorectal cancer? 

      Colorectal cancer can cause different symptoms that vary from person to person. Common symptoms include: 

      • Persistent changes in bowel habits, like diarrhea, constipation, or stools that are narrower than usual 
      • Blood in the stool, which may appear bright red or dark 
      • Abdominal pain, cramping, or discomfort that doesn’t go away 
      • A feeling that the bowel doesn’t empty completely after a bowel movement 
      • Unexplained weight loss or loss of appetite 
      • Fatigue or weakness 

      Blood in the stool or subtle changes in bowel habits may be early warning signs of colorectal cancer. However, most people do not notice their symptoms until the cancer has progressed. That’s why regular screenings, such as colonoscopies starting at age 45 or earlier for high-risk individuals, are important for early detection.  

      How is colorectal cancer diagnosed?  

      Colorectal cancer diagnosis involves a combination of screening tools and diagnostic tests

      • Colonoscopy: A thin, flexible tube with a camera is inserted into the colon to check for abnormalities. If polyps or suspicious areas are found, a biopsy can be taken for testing. 
      • Stool-based tests: These include fecal occult blood tests (FOBT) or fecal immunochemical tests (FIT), which check for hidden blood, and stool DNA tests, which look for abnormal DNA changes. 
      • CT colonography (virtual colonoscopy): A less invasive imaging test that uses CT scans to create detailed pictures of the colon and rectum. 
      • Blood tests: While blood work, such as a carcinoembryonic antigen (CEA) test, can suggest cancer, it cannot confirm the diagnosis. Blood tests are often used to monitor the cancer’s progress or recurrence. 

      What can colorectal cancer be mistaken for?  

      Colorectal cancer can develop over many years without obvious symptoms. Some patients were misdiagnosed in the early stages of their cancer because their symptoms were similar to those of common health conditions, such as: 

      • Irritable bowel syndrome (IBS): A disorder causing abdominal discomfort, bloating, and changes in bowel habits. 
      • Hemorrhoids: Swollen blood vessels in the rectum or anus that can cause rectal bleeding. 
      • Diverticulitis: Inflammation or infection of small pouches in the colon. 
      • Infections: Intestinal infections can mimic symptoms like diarrhea or abdominal pain. 

      What is the life expectancy for someone with colorectal cancer?  

      The life expectancy for colorectal cancer depends on several factors, including the stage at diagnosis, overall health, and response to treatment.  

      The survival rates based on cancer stages are: 

      • Localized (early stage): If the cancer is confined to the colon or rectum, the 5-year survival rate is about 91%. Early detection offers the best chance for successful treatment. 
      • Regional spread: When cancer has spread to nearby lymph nodes or tissues, the 5-year survival rate drops to about 72%. 
      • Distant spread (metastatic cancer): If the cancer has spread to distant organs, such as the liver or lungs, the 5-year survival rate is approximately 15%. 

      These survival rates are averages, and outcomes will vary from person to person. Advances in treatment options, including targeted therapies and immunotherapy, continue to improve prognosis for many patients. 

      When should I see a Colorectal Cancer doctor near Castro Valley, 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 Colorectal Cancer doctor near Castro Valley, 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 Colorectal Cancer doctors near Castro Valley, 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 Colorectal Cancer doctors near Castro Valley, 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 Colorectal Cancer doctor near Castro Valley, 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 Colorectal Cancer doctor search results page. 

      Why is it important to get a second opinion from a different Colorectal Cancer 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 Colorectal Cancer doctor near Castro Valley, 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 Colorectal Cancer 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 Colorectal Cancer 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 Colorectal Cancer doctors near Castro Valley, CA?

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

      Look for the filter feature on the left-side of the Colorectal Cancer 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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