The 20 Best Stomach Cancer Doctors Near Me in Thousand Oaks, CA
Find the Top Stomach Cancer Experts and Specialists
Ventura County Gastroenterology Group
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 the treatment of Stomach Cancer. 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.
Ashwin Kashyap, M.D.
Ashwin Kashyap is an Oncologist practicing medicine in Thousand Oaks, California. Dr. Kashyap is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. He is also highly rated in 29 other conditions, according to our data. His clinical expertise encompasses Chronic B-Cell Leukemia (CBCL), Richter Syndrome, Chronic Lymphocytic Leukemia (CLL), and Non-Hodgkin Lymphoma.
City Of Hope Medical Foundation
David Litvak is a Surgical Oncologist and a General Surgeon practicing medicine in Thousand Oaks, California. Dr. Litvak is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. His clinical expertise encompasses Pseudomyxoma Peritonei, Gallbladder Disease, Gallstones, Hernia Surgery, and Small Bowel Resection.
MDVIP - Thousand Oaks, CA
Peter Margolis is a primary care provider, practicing in Internal Medicine in Thousand Oaks, California. Dr. Margolis is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Childhood Iron Deficiency Anemia, Iron Deficiency Anemia, Glucocorticoid-Remediable Aldosteronism, and Hypertension.
William J. Fisher M.D. FACS Inc.
Samuel Slomowitz is a Hematologist and an Oncologist practicing medicine in Westlake Village, California. He has been practicing medicine for over 18 years. Dr. Slomowitz is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. He is also highly rated in 41 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Familial Colorectal Cancer, Paget Disease of the Breast, Familial Pancreatic Cancer, and Bone Marrow Aspiration.
Irving K Loh M D Inc
Manabu Fujita is a Surgical Oncologist practicing medicine in Thousand Oaks, California. Dr. Fujita is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Pancreatic Cancer, Familial Pancreatic Cancer, Small Bowel Resection, and Hernia Surgery.
David D Chi, MD
David Chi is a General Surgeon practicing medicine in Thousand Oaks, California. Dr. Chi is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Choledocholithiasis, Paget Disease of the Breast, Hernia Surgery, and Lymphadenectomy. Dr. Chi is currently accepting new patients.
Michael Masterson is an Oncologist and a Hematologist practicing medicine in Westlake Village, California. Dr. Masterson is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. His clinical expertise encompasses Follicular Lymphoma, Breast Cancer, Ganglioglioma, Paget Disease of the Breast, and Bone Marrow Aspiration.
Office
Carolyn Britten is an Oncologist practicing medicine in Newbury Park, California. Dr. Britten is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Colorectal Cancer, Familial Colorectal Cancer, Small Cell Lung Cancer (SCLC), and Squamous Cell Lung Carcinoma.
Bahareh Bahadini is a Hematologist and an Oncologist practicing medicine in Simi Valley, California. Dr. Bahadini is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. She is also highly rated in 37 other conditions, according to our data. Her clinical expertise encompasses Inflammatory Breast Cancer, Breast Cancer, Angiosarcoma, and Paget Disease of the Breast.
Michael Benjamin is a Hematologist and an Oncologist practicing medicine in Simi Valley, California. Dr. Benjamin is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Inflammatory Breast Cancer, Paget Disease of the Breast, Breast Cancer, and Angiosarcoma. Dr. Benjamin is currently accepting new patients.
Laya Nasrollah is a Gastroenterologist practicing medicine in Camarillo, California. Dr. Nasrollah is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. 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.
Chirag Dalsania is a Hematologist practicing medicine in Camarillo, California. Dr. Dalsania is rated as an Advanced provider by MediFind in the treatment of Stomach Cancer. He is also highly rated in 51 other conditions, according to our data. His clinical expertise encompasses Thrombocytopenia, Iron Deficiency Anemia, Adult Immune Thrombocytopenia, and Immune Thrombocytopenic Purpura (ITP). Dr. Dalsania is currently accepting new patients.
Alamar Health Care Inc
Dr. Jeffrey Allan, MD is an Internal Medicine specialist in Camarillo, CA and has over 31 years of experience in the medical field. He graduated from University Of California, Los Angeles School of Medicine in 1989. He is affiliated with medical facilities: St. John's Regional Medical Center and St. John's Pleasant Valley Hospital. He is accepting new patients and has indicated that he accepts Telehealth appointments and reimbursed Phone Appointments. Be sure to call ahead with Dr. Allan to book an appointment..WE PROVIDE MEDICAL CARE FOR ALL STAGES OF ADULT LIFE.Care For Adults IncludesUrgent care visits generally same dayVideo Telehealth and reimbursed Phone AppointmentsAcute IIIness Care and Chronic Condition ManagementAssessment of painAnnual Wellness Visits as well as Annual physical examPartnering with Patients and CaregiversMen's Health and Women's Health ExamsPre-travel examinations & Return to work exams.Assessment and Prevention Strategies to Delay Mid-life Premature Aging.WE ARE THE RECOGNIZED LEADING CENTER FOR GERIATRIC MEDICINE AND GERONTOLOGY IN VENTURA COUNTYOur doctors have many years of education, training and experience as doctors of Internal Medicine with advanced specialized training in Geriatric Medicine. In fact, our founder, Jeffrey B. Allan, M.D., completed a two-year post-residency Fellowship in Geriatric Medicine from the prestigious UCLA School of Medicine University/Veterans Administration combined program, considered one of the best training programs of its kind in the world.Our doctors and hand-picked on-call physicians follow our patients from the Alamar Healthcare office to hospital, nursing home, residential care, and assisted living. They coordinate care planning with home health agencies and hospice.Our Alamar Healthcare doctors have many years of Internal Medicine experience in Primary Care treating adults of all ages. Each patient is listened to carefully at each encounter. Our doctors partner with patients in their care. Our practice emphasizes compassion, knowledge, respect and good communication. Patients are followed from office to hospital and on to skilled nursing facilities for continuity of care. Our patients often are members of the same family, from young adult to seniors. We offer new patient appointments & follow-up visits as well as same day or next day Urgent Care appointments for established patients depending on the needs of the patient. Our doctors are proud to serve as physicians to patients throughout Ventura County as well provide healthcare to their local fellow health professionals, to Veterans through the VA Veterans Choice Program, and to eligible Ventura County Health Care Plan Employees. Dr. Allan is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Thrombocytopenia, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Liver Embolization, and Hip Replacement. Dr. Allan is currently accepting new patients.
Genesis Healthcare Partners
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 the treatment of Stomach Cancer. 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.
Per-Se Technologies
Jon Loo is an Interventional Radiologist practicing medicine in Newbury Park, California. He has been practicing medicine for over 18 years. Dr. Loo is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Pleurisy, Pleural Effusion, Stroke, Bone Marrow Aspiration, and Gastrostomy.
Renaissance Imaging Medical Associates Inc
Richard Alberts is a Radiologist and an Interventional Radiologist practicing medicine in Simi Valley, California. Dr. Alberts is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. He is also highly rated in 50 other conditions, according to our data. His clinical expertise encompasses Gallbladder Disease, Pleural Effusion, Pleurisy, Bone Graft, and Vertebroplasty. Dr. Alberts is board certified in Radiology Diagnostic Radiology.
Ashkan Lashkari is a Hematologist and an Oncologist practicing medicine in West Hills, California. Dr. Lashkari is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. He is also highly rated in 21 other conditions, according to our data. His clinical expertise encompasses Parapneumonic Pleural Effusion, Multiple Myeloma, Mantle Cell Lymphoma (MCL), Smoldering Multiple Myeloma, and Bone Marrow Aspiration. Dr. Lashkari is currently accepting new patients.
Omid Shaye is a Hematologist and an Oncologist practicing medicine in West Hills, California. Dr. Shaye is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Paget Disease of the Breast, Familial Colorectal Cancer, Diffuse Large B-Cell Lymphoma (DLBCL), Large-Cell Immunoblastic Lymphoma, and Bone Marrow Aspiration. Dr. Shaye is currently accepting new patients.
Christopher Ho is a Hematologist and an Oncologist practicing medicine in West Hills, California. Dr. Ho is rated as an Experienced provider by MediFind in the treatment of Stomach Cancer. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Lynch Syndrome, Familial Colorectal Cancer, Pleuropulmonary Blastoma, and Bone Marrow Aspiration. Dr. Ho is currently accepting new patients.
Last Updated: 04/28/2026


