The 20 Best Gastrectomy Doctors near Thousand Oaks, CA

Find the Experts and Specialists who perform Gastrectomy

Last Updated: 04/28/2026

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MediFind found 30 doctor with experience in Gastrectomy near Thousand Oaks, CA. Of these, 23 are Experienced and 7 are Advanced.

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30 providers found
    Experienced in Gastrectomy
    Bariatric Medicine | General Surgery
    Experienced in Gastrectomy
    Bariatric Medicine | General Surgery

    University Bariatrics

    227 W Janss Rd, Ste 320, 
    Thousand Oaks, CA 
     (2.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Telehealth visits are available.Dr. Mehran's practice is devoted to minimally invasive general and bariatric surgery. The name University Bariatrics reflects his goal of combining the integrity & values of his past academic career, with a new private practice focus on serving the community around him. Dr. Mehran is board certified in surgery and licensed in California. He is a member of multiple surgical societies and has served as a consultant for various regulatory agencies, surgical journals, the media, and the medical industry. In recognition of his dedication and efforts, his peers have repeatedly elected him to the Southern California Super Doctors list. Dr. Mehran has contributed to over 160 publications and presentations and has mentored numerous fellows, residents, and medical students. He currently serves as the Chief of Surgery at Los Robles Medical Center. Much more information can be obtained by visiting the practice website. Dr. Mehran is rated as an Experienced provider by MediFind in Gastrectomy. His clinical expertise encompasses Ogilvie Syndrome, Retroperitoneal Inflammation, Gallstones, Sleeve Gastrectomy, and Gastrectomy. Dr. Mehran is board certified in Surgery General Surgery. Dr. Mehran is currently accepting new patients.

    Advanced in Gastrectomy
    Gastroenterology
    Advanced in Gastrectomy
    Gastroenterology

    Ventura County Gastroenterology Group

    4005 Mission Oaks Blvd, Ste A, 
    Camarillo, CA 
     (10.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Dr. Micha Rojany was born and raised in Southern California. He received his undergraduate degree from the University of California, Berkeley. He attended USC Medical School and completed his internship and residency at Cedars-Sinai Medical Center in Los Angeles. His fellowship in Gastroenterology was completed at the University of California, Davis.Dr. Rojany has practiced in Ventura County since 2006 and is an active member of the local medical community and hospital staff at St. John's Regional Medical Center in Oxnard, and Pleasant Valley Hospital, in Camarillo. He enjoys practicing as a Gastroenterologist with special interests in inflammatory bowel disease and biliary tract diseases.As a Gastroenterologist, Dr. Rojany enjoys the depth and breadth of his field. He takes pride in providing excellent care while taking care of his patients and meeting their needs as a community specialist in digestive diseases. Dr. Rojany is rated as an Advanced provider by MediFind in Gastrectomy. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Gastrointestinal Bleeding, Angiodysplasia of the Colon, Endoscopy, and Gastrectomy. Dr. Rojany is board certified in Internal Medicine (Sub: Gastroenterology). Dr. Rojany is currently accepting new patients.

    Advanced in Gastrectomy
    Gastroenterology
    Advanced in Gastrectomy
    Gastroenterology

    Alister A George, MD

    3510 N Moorpark Rd Ste 201, 
    Thousand Oaks, CA 
     (3.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Alister George is a Gastroenterologist practicing medicine in Thousand Oaks, California. Dr. George is rated as an Advanced provider by MediFind in Gastrectomy. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Esophagitis, Gastroesophageal Reflux Disease (GERD), Gastric Dysmotility, Endoscopy, and Colonoscopy.

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

    Gregory H Johnson MD Inc

    227 W Janss Rd Ste 215, 
    Thousand Oaks, CA 
     (3.2 miles away)
    Languages Spoken:
    English

    Gregory Johnson is a Gastroenterologist practicing medicine in Thousand Oaks, California. Dr. Johnson is rated as an Advanced provider by MediFind in Gastrectomy. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Diarrhea, Trichohepatoenteric Syndrome, Gastrectomy, and Endoscopy.

    Experienced in Gastrectomy
    Gastroenterology
    Experienced in Gastrectomy
    Gastroenterology

    Ventura County Gastroenterology Group

    4005 Mission Oaks Blvd, Ste A, 
    Camarillo, CA 
     (10.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Dr. Karen Simon received her B.A. from Stanford University in 1996. She then attended Northwestern University for medical school. She completed her residency at Cedars-Sinai Medical Center in 2004 and her fellowship at UCLA and Cedars in 2008.Dr. Simon has proudly been serving patients in Ventura County since 2008 and is very involved in field research. Dr. Simon is also a speaker for Exact Sciences on behalf of Cologuard and is actively associated in research studies. She is a part of the Takeda Chloride Channel Council and a speaker for Amitiza, as well.She enjoys educating the doctors and the community as a lecturer on topics such as colorectal cancer screening at St. John's Hospital, where she is also a part of the Ethics Committee.Dr. Simon aims specifically to work with patients to discover the problem and develop a treatment strategy. She has a particular interest in Celiac Disease, Inflammatory Bowel Disease (IBD), and a passion for improving colorectal cancer detection.She is dedicated to developing a relationship with patients by utilizing education and mutual information sharing. Dr. Simon is rated as an Experienced provider by MediFind in Gastrectomy. She is also highly rated in 21 other conditions, according to our data. Her clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Familial Adenomatous Polyposis, Swallowing Difficulty, Endoscopy, and Colonoscopy. Dr. Simon is board certified in Internal Medicine (Sub: Gastroenterology). Dr. Simon is currently accepting new patients.

    Experienced in Gastrectomy
    Vascular Surgery
    Experienced in Gastrectomy
    Vascular Surgery

    Conejo Valley Vascular Associates

    2220 Lynn Rd Ste 102, 
    Thousand Oaks, CA 
     (3.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Trung Bui is a Vascular Surgeon practicing medicine in Thousand Oaks, California. Dr. Bui is rated as an Experienced provider by MediFind in Gastrectomy. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Idiopathic Edema, Varicose Veins, Necrosis, Carotid Artery Surgery, and Gastrostomy. Dr. Bui is currently accepting new patients.

    Experienced in Gastrectomy
    General Surgery
    Experienced in Gastrectomy
    General Surgery

    Lauren A Poliakin MD

    227 W Janss Rd Ste 300, 
    Thousand Oaks, CA 
     (3.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Lauren Poliakin is a General Surgeon practicing medicine in Thousand Oaks, California. Dr. Poliakin is rated as an Experienced provider by MediFind in Gastrectomy. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Obesity, Hernia, Retroperitoneal Inflammation, Gastric Bypass, and Gallbladder Removal. Dr. Poliakin is currently accepting new patients.

    Experienced in Gastrectomy
    Gastroenterology
    Experienced in Gastrectomy
    Gastroenterology

    Shahram Daneshgar, MD

    2230 Lynn Rd Ste 300, 
    Thousand Oaks, CA 
     (3.2 miles away)
    Languages Spoken:
    English

    Shahram Daneshgar is a Gastroenterologist practicing medicine in Thousand Oaks, California. Dr. Daneshgar is rated as an Experienced provider by MediFind in Gastrectomy. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Gastric Dysmotility, Gastroesophageal Reflux Disease (GERD), Esophagitis, Endoscopy, and Gastrectomy.

    Experienced in Gastrectomy
    Gastroenterology
    Experienced in Gastrectomy
    Gastroenterology

    UCLA Heart And Vascular Services

    100 Moody Ct Ste 200, 
    Thousand Oaks, CA 
     (3.2 miles away)
    Languages Spoken:
    English

    Michael Albertson is a Gastroenterologist practicing medicine in Thousand Oaks, California. Dr. Albertson is rated as an Experienced provider by MediFind in Gastrectomy. His clinical expertise encompasses Swallowing Difficulty, Painful Swallowing, Irritable Bowel Syndrome (IBS), Endoscopy, and Gastrectomy.

    Experienced in Gastrectomy
    Gastroenterology
    Experienced in Gastrectomy
    Gastroenterology

    Office

    248 Hampshire Rd Ste 200, 
    Westlake Village, CA 
     (3.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Rimma Shaposhnikov is a Gastroenterologist practicing medicine in Westlake Village, California. Dr. Shaposhnikov is rated as an Experienced provider by MediFind in Gastrectomy. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, Endoscopy, and Gastrectomy.

    Experienced in Gastrectomy
    Gastroenterology
    Experienced in Gastrectomy
    Gastroenterology

    Cristina S. Wiese. M.D. Inc.

    325 Rolling Oaks Dr Ste 100, 
    Thousand Oaks, CA 
     (3.6 miles away)
    Languages Spoken:
    English

    Cristina Wiese is a Gastroenterologist practicing medicine in Thousand Oaks, California. Dr. Wiese is rated as an Experienced provider by MediFind in Gastrectomy. She is also highly rated in 20 other conditions, according to our data. Her clinical expertise encompasses Gastric Dysmotility, Familial Adenomatous Polyposis, Gastroesophageal Reflux Disease (GERD), Gastrectomy, and Endoscopy.

    Experienced in Gastrectomy
    Gastroenterology
    Experienced in Gastrectomy
    Gastroenterology

    Thousand Oaks Primary & Specialty Care

    248 Hampshire Rd # 200, 
    Thousand Oaks, CA 
     (3.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Hamed Nayeb is a Gastroenterologist practicing medicine in Thousand Oaks, California. Dr. Nayeb is rated as an Experienced provider by MediFind in Gastrectomy. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Crohn's Disease, Familial Adenomatous Polyposis, Turcot Syndrome, Endoscopy, and Gastrectomy.

    Experienced in Gastrectomy
    Gastroenterology
    Experienced in Gastrectomy
    Gastroenterology
    5800 Santa Rosa Road, Suite 149, 
    Camarillo, CA 
     (8.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Laya Nasrollah is a Gastroenterologist practicing medicine in Camarillo, California. Dr. Nasrollah is rated as an Experienced provider by MediFind in Gastrectomy. She is also highly rated in 35 other conditions, according to our data. Her clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Familial Adenomatous Polyposis, Diarrhea, Endoscopy, and Gastrectomy. Dr. Nasrollah is currently accepting new patients.

    Experienced in Gastrectomy
    Gastroenterology
    Experienced in Gastrectomy
    Gastroenterology

    Ventura County Gastroenterology Group

    4005 Mission Oaks Blvd, Ste A, 
    Camarillo, CA 
     (10.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Jay Guan is a Gastroenterologist practicing medicine in Camarillo, California. Dr. Guan is rated as an Experienced provider by MediFind in Gastrectomy. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Hemorrhoids, Hiatal Hernia, Congenital Diaphragmatic Hernia, Colonoscopy, and Gastrectomy. Dr. Guan is board certified in Internal Medicine. Dr. Guan is currently accepting new patients.

    Advanced in Gastrectomy
    Gastroenterology | Internal Medicine
    Advanced in Gastrectomy
    Gastroenterology | Internal Medicine

    Moe Amadpour, Md. Inc

    1159 Roadrunner Way, 
    Simi Valley, CA 
     (6.5 miles away)
    Experience:
    33+ years
    Languages Spoken:
    English
    Offers Telehealth

    Moe Amadpour is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Simi Valley, California. He has been practicing medicine for over 33 years. Dr. Amadpour is rated as an Advanced provider by MediFind in Gastrectomy. He is also highly rated in 21 other conditions, according to our data. His clinical expertise encompasses Esophagitis, Acute Pancreatitis, Diverticular Disease, Gastrectomy, and Colonoscopy. Dr. Amadpour is board certified in American Board Of Internal Medicine.

    Advanced in Gastrectomy
    Gastroenterology
    Advanced in Gastrectomy
    Gastroenterology

    Gastroenterology & Hepatology Specialists Inc.

    2876 Sycamore Dr Ste 203, 
    Simi Valley, CA 
     (7.1 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Mayur Trivedi is a Gastroenterologist practicing medicine in Simi Valley, California. Dr. Trivedi is rated as an Advanced provider by MediFind in Gastrectomy. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Hemorrhoids, Gastrointestinal Bleeding, Gastroesophageal Reflux Disease (GERD), Gastrectomy, and Colonoscopy.

    Experienced in Gastrectomy
    Gastroenterology | Internal Medicine
    Experienced in Gastrectomy
    Gastroenterology | Internal Medicine

    Genesis Healthcare Partners

    29525 Canwood St, 
    Agoura Hills, CA 
     (5.0 miles away)
    Experience:
    36+ years
    Languages Spoken:
    English
    Offers Telehealth

    Cyrus Badii is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Agoura Hills, California. He has been practicing medicine for over 36 years. Dr. Badii is rated as an Experienced provider by MediFind in Gastrectomy. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Hiatal Hernia, Congenital Diaphragmatic Hernia, Gastroesophageal Reflux Disease (GERD), Gastrectomy, and Gastrostomy. Dr. Badii is board certified in American Board Of Internal Medicine.

    Experienced in Gastrectomy
    General Surgery
    Experienced in Gastrectomy
    General Surgery

    Brian J Supple, MD

    1000 Newbury Rd Ste 285, 
    Newbury Park, CA 
     (5.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Brian Supple is a General Surgeon practicing medicine in Newbury Park, California. Dr. Supple is rated as an Experienced provider by MediFind in Gastrectomy. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Hernia, Delirium, Ogilvie Syndrome, Hernia Surgery, and Small Bowel Resection. Dr. Supple is currently accepting new patients.

    Experienced in Gastrectomy
    General Surgery
    Experienced in Gastrectomy
    General Surgery

    Daniel K Davis MD Inc

    2750 Sycamore Dr Ste 210, 
    Simi Valley, CA 
     (7.1 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Andrea Pakula is a General Surgeon practicing medicine in Simi Valley, California. Dr. Pakula is rated as an Experienced provider by MediFind in Gastrectomy. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Hernia, Gallstones, Choledocholithiasis, Sleeve Gastrectomy, and Small Bowel Resection.

    Experienced in Gastrectomy
    Gastroenterology
    Experienced in Gastrectomy
    Gastroenterology

    Simi Workplace Multi-Specialty Clinic Inc

    2755 Alamo St Ste 100, 
    Simi Valley, CA 
     (7.1 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Anna Skay is a Gastroenterologist practicing medicine in Simi Valley, California. Dr. Skay is rated as an Experienced provider by MediFind in Gastrectomy. Her clinical expertise encompasses Hemorrhoids, Familial Adenomatous Polyposis, Gardner Syndrome, Colonoscopy, and Gastrectomy.

    Showing 1-20 of 30

    Last Updated: 04/28/2026

    What is the definition of Gastrectomy?

    Gastrectomy is surgery to remove part or all of the stomach.

    • If only part of the stomach is removed, it is called partial gastrectomy
    • If the whole stomach is removed, it is called total gastrectomy

    When should I see a Gastrectomy doctor near Thousand Oaks, 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 Gastrectomy doctor near Thousand Oaks, 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 Gastrectomy doctors near Thousand Oaks, 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 Gastrectomy doctors near Thousand Oaks, 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 Gastrectomy doctor near Thousand Oaks, 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 Gastrectomy doctor search results page. 

    Why is it important to get a second opinion from a different Gastrectomy 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 Gastrectomy doctor near Thousand Oaks, 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 Gastrectomy 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 Gastrectomy 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 Gastrectomy doctors near Thousand Oaks, CA?

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

    Look for the filter feature on the left-side of the Gastrectomy 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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