The 20 Best Gastric Bypass Doctors in California, US

Find the Experts and Specialists who perform Gastric Bypass

Last Updated: 09/26/2026

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MediFind found 211 doctor with experience in Gastric Bypass near California, US. Of these, 166 are Experienced, 34 are Advanced and 11 are Distinguished.

Location
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211 providers found
    Distinguished in Gastric Bypass
    Transplant Surgery
    Distinguished in Gastric Bypass
    Transplant Surgery
    Referral may be required

    Bariatric Surgery Center

    400 Parnassus Ave., Second Floor, 
    San Francisco, CA 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Andrew Posselt is a Transplant Surgeon practicing medicine in San Francisco, California. Dr. Posselt is rated as a Distinguished provider by MediFind in Gastric Bypass. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Obesity, Chronic Pancreatitis, Chronic Antibody-Mediated Rejection, Islet Cell Transplantation, and Sleeve Gastrectomy. Dr. Posselt is board certified in American Board Of Surgery, General Surgery. Dr. Posselt is currently accepting new patients.

    Distinguished in Gastric Bypass
    General Surgery
    Distinguished in Gastric Bypass
    General Surgery
    Referral may be required

    Stanford Hospital And Clinics

    300 Pasteur Dr, 
    Stanford, CA 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Dan Azagury is a General Surgeon practicing medicine in Stanford, California. Dr. Azagury is rated as a Distinguished provider by MediFind in Gastric Bypass. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Obesity, Obesity in Children, Gastroesophageal Reflux Disease (GERD), Gastric Bypass, and Sleeve Gastrectomy. Dr. Azagury is currently accepting new patients.

    Distinguished in Gastric Bypass
    General Surgery
    Distinguished in Gastric Bypass
    General Surgery
    Referral may be required

    University Of California San Diego Jacobs Medical Center

    9300 Campus Point Dr, 
    La Jolla, CA 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Garth Jacobsen is a General Surgeon practicing medicine in La Jolla, California. Dr. Jacobsen is rated as a Distinguished provider by MediFind in Gastric Bypass. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Hernia, Hiatal Hernia, Diaphragmatic Hernia, Gallbladder Removal, and Gastrectomy. Dr. Jacobsen is currently accepting new patients.

    Learn about our expert tiers
    Distinguished in Gastric Bypass
    General Surgery
    Distinguished in Gastric Bypass
    General Surgery
    Referral may be required

    Bariatric Surgery Center

    400 Parnassus Ave., Second Floor, 
    San Francisco, CA 
    Languages Spoken:
    English, Arabic
    Accepting New Patients
    Offers Telehealth

    Jonathan Carter is a General Surgeon practicing medicine in San Francisco, California. Dr. Carter is rated as a Distinguished provider by MediFind in Gastric Bypass. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Obesity, Hernia, Choledocholithiasis, Gastric Bypass, and Sleeve Gastrectomy. Dr. Carter is board certified in American Board Of Surgery, General Surgery. Dr. Carter is currently accepting new patients.

    Distinguished in Gastric Bypass
    General Surgery
    Distinguished in Gastric Bypass
    General Surgery
    Referral may be required

    University California San Francisco - UCSF

    400 Parnassus Ave, 2nd Fl General Surgery Box 0338, 
    San Francisco, CA 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Stanley Rogers is a General Surgeon practicing medicine in San Francisco, California. Dr. Rogers is rated as a Distinguished provider by MediFind in Gastric Bypass. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Obesity, Hernia, Hiatal Hernia, Gastric Bypass, and Sleeve Gastrectomy. Dr. Rogers is board certified in Surgery General Surgery. Dr. Rogers is currently accepting new patients.

    Experienced in Gastric Bypass
    Experienced in Gastric Bypass
    Referral may be required

    University Of California San Diego Jacobs Medical Center

    9300 Campus Point Dr, 
    La Jolla, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Manoj Monga is a Urologist practicing medicine in La Jolla, California. Dr. Monga is rated as an Experienced provider by MediFind in Gastric Bypass. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Kidney Stones, Urinary Tract Infection (UTI), Perirenal Abscess, Lithotripsy, and Ureteroscopy.

    Experienced in Gastric Bypass
    Interventional Radiology
    Experienced in Gastric Bypass
    Interventional Radiology
    Referral may be required

    Ronald Reagan UCLA Medical Center

    757 Westwood Plz, 
    Los Angeles, CA 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Ravi Srinivasa is an Interventional Radiologist practicing medicine in Los Angeles, California. Dr. Srinivasa is rated as an Experienced provider by MediFind in Gastric Bypass. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Chylous Ascites, Cholestasis, Bile Duct Obstruction, Liver Embolization, and Gastrostomy. Dr. Srinivasa is currently accepting new patients.

    Experienced in Gastric Bypass
    Surgical Oncology
    Experienced in Gastric Bypass
    Surgical Oncology
    Referral may be required

    Gastrointestinal Surgical Oncology Clinic

    1825 4th St Fl 4, 
    San Francisco, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Carlos Corvera is a Surgical Oncologist practicing medicine in San Francisco, California. Dr. Corvera is rated as an Experienced provider by MediFind in Gastric Bypass. He is also highly rated in 24 other conditions, according to our data. His clinical expertise encompasses Pancreatic Cancer, Liver Cancer, Stomach Cancer, Pancreatectomy, and Hepatectomy.

    Distinguished in Gastric Bypass
    General Surgery
    Distinguished in Gastric Bypass
    General Surgery
    Referral may be required

    Cleveland Clinic

    400 Craven Rd, 
    San Marcos, CA 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Andrew Strong is a General Surgeon practicing medicine in San Marcos, California. Dr. Strong is rated as a Distinguished provider by MediFind in Gastric Bypass. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Gastroparesis, Hiatal Hernia, Hernia, Gastrectomy, and Gastric Bypass. Dr. Strong is currently accepting new patients.

    Distinguished in Gastric Bypass
    General Surgery
    Distinguished in Gastric Bypass
    General Surgery
    Referral may be required

    Advanced Laparoscopic Surgery Associates Medical Group Inc

    205 E River Park Cir Ste 460, 
    Fresno, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Kelvin Higa is a General Surgeon practicing medicine in Fresno, California. Dr. Higa is rated as a Distinguished provider by MediFind in Gastric Bypass. He is also highly rated in 24 other conditions, according to our data. His clinical expertise encompasses Obesity, Short Bowel Syndrome, Malnutrition, Gastrectomy, and Gastric Bypass.

    Distinguished in Gastric Bypass
    General Surgery
    Distinguished in Gastric Bypass
    General Surgery
    Referral may be required

    UC San Diego

    200 W Arbor Dr, 
    San Diego, CA 
    Languages Spoken:
    English

    Santiago Horgan is a General Surgeon practicing medicine in San Diego, California. Dr. Horgan is rated as a Distinguished provider by MediFind in Gastric Bypass. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Hiatal Hernia, Hernia, Diaphragmatic Hernia, Gallbladder Removal, and Endoscopy.

    Distinguished in Gastric Bypass
    Endocrinology
    Distinguished in Gastric Bypass
    Endocrinology
    Referral required

    San Francisco VA Medical Center

    4150 Clement St, 
    San Francisco, CA 
    Languages Spoken:
    English

    Anne Schafer is an Endocrinologist practicing medicine in San Francisco, California. Dr. Schafer is rated as a Distinguished provider by MediFind in Gastric Bypass. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Osteoporosis, Obesity, Postmenopausal Osteoporosis, Gastric Bypass, and Sleeve Gastrectomy.

    Distinguished in Gastric Bypass
    General Surgery
    Distinguished in Gastric Bypass
    General Surgery
    Referral may be required

    Fresno Heart Hospital LLC

    15 E Audubon Dr, 
    Fresno, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Pearl Ma is a General Surgeon practicing medicine in Fresno, California. Dr. Ma is rated as a Distinguished provider by MediFind in Gastric Bypass. She is also highly rated in 15 other conditions, according to our data. Her clinical expertise encompasses Obesity, Short Bowel Syndrome, Malnutrition, Gastric Bypass, and Gastrectomy.

    Distinguished in Gastric Bypass
    General Surgery
    Distinguished in Gastric Bypass
    General Surgery
    Referral may be required

    University Of California San Diego Jacobs Medical Center

    9300 Campus Point Dr, 
    La Jolla, CA 
    Languages Spoken:
    English

    Bryan Sandler is a General Surgeon practicing medicine in La Jolla, California. Dr. Sandler is rated as a Distinguished provider by MediFind in Gastric Bypass. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Hernia, Hiatal Hernia, Diaphragmatic Hernia, Gallbladder Removal, and Gastrectomy.

    Advanced in Gastric Bypass
    General Surgery
    Advanced in Gastric Bypass
    General Surgery
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
    Languages Spoken:
    English, Vietnamese
    Offers Telehealth

    Ninh Nguyen is a General Surgeon practicing medicine in Orange, California. Dr. Nguyen is rated as an Advanced provider by MediFind in Gastric Bypass. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Hiatal Hernia, Hernia, Stomach Cancer, Endoscopy, and Gastrectomy.

    Advanced in Gastric Bypass
    Gastroenterology
    Advanced in Gastric Bypass
    Gastroenterology
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Jason Samarasena is a Gastroenterologist practicing medicine in Orange, California. Dr. Samarasena is rated as an Advanced provider by MediFind in Gastric Bypass. He is also highly rated in 50 other conditions, according to our data. His clinical expertise encompasses Barrett Esophagus, Jaundice, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Colonoscopy. Dr. Samarasena is board certified in American Board Of Internal Medicine - Gastroenterology.

    Advanced in Gastric Bypass
    Bariatric Medicine | General Surgery
    Advanced in Gastric Bypass
    Bariatric Medicine | General Surgery
    Referral required

    Ventura Advanced Surgical Associates

    3200 Telegraph Rd, 
    Ventura, CA 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Helmuth Billy is a Bariatric Medicine specialist and a General Surgeon practicing medicine in Ventura, California. Dr. Billy is rated as an Advanced provider by MediFind in Gastric Bypass. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Obesity, Malabsorption, Hiatal Hernia, Gastrectomy, and Sleeve Gastrectomy. Dr. Billy is board certified in Surgery General Surgery. Dr. Billy is currently accepting new patients.

    Advanced in Gastric Bypass
    Internal Medicine
    Advanced in Gastric Bypass
    Internal Medicine

    Sutter Van Ness Campus Medical Office Building

    1100 Van Ness Ave, 
    San Francisco, CA 
    Languages Spoken:
    English

    Kenneth Binmoeller is a primary care provider, practicing in Internal Medicine in San Francisco, California. Dr. Binmoeller is rated as an Advanced provider by MediFind in Gastric Bypass. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Pancreatic Pseudocyst, Achalasia, Bile Duct Obstruction, Endoscopy, and Colonoscopy.

    Advanced in Gastric Bypass
    General Surgery
    Advanced in Gastric Bypass
    General Surgery
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
    Languages Spoken:
    English, Spanish
    Offers Telehealth

    Marcelo Hinojosa is a General Surgeon practicing medicine in Orange, California. Dr. Hinojosa is rated as an Advanced provider by MediFind in Gastric Bypass. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Obesity, Hernia, Hiatal Hernia, Endoscopy, and Gastric Bypass. Dr. Hinojosa is board certified in American Board Of Surgery - Surgery (General Surgery).

    Advanced in Gastric Bypass
    General Surgery
    Advanced in Gastric Bypass
    General Surgery
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Shaun Daly is a General Surgeon practicing medicine in Orange, California. Dr. Daly is rated as an Advanced provider by MediFind in Gastric Bypass. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Hiatal Hernia, Obesity, Hernia, Endoscopy, and Gallbladder Removal. Dr. Daly is board certified in American Board Of Surgery - Surgery (General Surgery).

    Showing 1-20 of 211

    Last Updated: 09/26/2026

    What is the definition of Gastric Bypass?

    Gastric bypass is surgery that helps you lose weight by changing how your stomach and small intestine handle the food you eat.

    After the surgery, your stomach will be smaller. You will feel full with less food.

    Also, the food you eat will no longer go into some parts of your small intestine that absorb the nutrients in food. Because of this, your body will not get all of the calories from the food you eat.

    When should I see a Gastric Bypass doctor in California, US?

    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 Gastric Bypass doctor in California, US?

    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 Gastric Bypass doctors in California, US?

    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 Gastric Bypass doctors in California, US?

    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 Gastric Bypass doctor in California, US?

    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 Gastric Bypass doctor search results page. 

    Why is it important to get a second opinion from a different Gastric Bypass 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 Gastric Bypass doctor in California, US?

    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 Gastric Bypass 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 Gastric Bypass 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 Gastric Bypass doctors in California, US?

    Look for the filter feature on the left side of the Gastric Bypass 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 Gastric Bypass doctor that offers video calls?

    Look for the filter feature on the left-side of the Gastric Bypass 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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