The 20 Best Ulcerative Colitis Doctors Near Me in Oxnard, CA
Find the Top Ulcerative Colitis Experts and Specialists
Ventura County Gastroenterology Group
Justin Marasigan is a Gastroenterologist practicing medicine in Oxnard, California. Dr. Marasigan is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, Gastrectomy, and Colonoscopy. Dr. Marasigan is board certified in American Os Bd Internal Medicine and American Os Bd Internal Medicine (Sub: Gastroenterlogy). Dr. Marasigan is currently accepting new patients.
Magnolia Family Medical Center
Dipti Sagar is a Gastroenterologist practicing medicine in Oxnard, California. Dr. Sagar is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Familial Colorectal Cancer, DICER1 Syndrome, Diverticular Disease, Hepatitis, and Endoscopy. Dr. Sagar is board certified in Gastroenterology-Internal Medicine. Dr. Sagar is currently accepting new patients.
Primary Care & Women's Health - Dignity Health Medical Group - Oxnard, CA
I describe my practice style as caring and think of myself as a health coach and a partner to my patients in their health care. As an internist, I treat diabetes, hypertension, hyperlipidemia, anxiety, depression, stress management, insomnia, and many other conditions. I'm especially interested in preventative health care, working on getting my patients healthier and treating medical conditions with lifestyle changes, weight management, exercise, and nutrition. In some instances, my methods have allowed patients to improve their health to the point where prescription medications are no longer needed. Dr. Mescher is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. Her clinical expertise encompasses Decorticate Posture, Decerebrate Posture, Generalized Anxiety Disorder (GAD), and Sitosterolemia. Dr. Mescher is board certified in Internal Medicine. Dr. Mescher is currently accepting new patients.
Island View Gastroenterology Associates
Kip Lyche is a Gastroenterologist practicing medicine in Ventura, California. Dr. Lyche is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 55 other conditions, according to our data. His clinical expertise encompasses Esophageal Varices, Enlarged Liver, Visceromegaly, Endoscopy, and Colonoscopy. Dr. Lyche is board certified in Gastroenterology. Dr. Lyche is currently accepting new patients.
Island View Gastroenterology Associates
Benito Pedraza is a Gastroenterologist practicing medicine in Ventura, California. Dr. Pedraza is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 35 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Gastrointestinal Bleeding, Gastric Dysmotility, Endoscopy, and Gastrectomy. Dr. Pedraza is board certified in Gastroenterology. Dr. Pedraza is currently accepting new patients.
Island View Gastroenterology Associates
Charles Menz is a Gastroenterologist practicing medicine in Ventura, California. Dr. Menz is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 35 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Hepatitis C, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Gastrostomy. Dr. Menz is board certified in Gastroenterology-Internal Medicine. Dr. Menz is currently accepting new patients.
Stephen D. Covington, MD Private Practice
Stephen Covington is a Gastroenterologist practicing medicine in Ventura, California. Dr. Covington is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Hepatitis, Hepatitis C, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Gastrectomy. Dr. Covington is board certified in Internal Medicine and Internal Medicine (Sub: Gastroenterology). Dr. Covington is currently accepting new patients.
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 Ulcerative Colitis. 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.
Ventura County Gastroenterology Group
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 Experienced provider by MediFind in the treatment of Ulcerative Colitis. 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.
Community Memorial Health System
Steven Clement is a primary care provider, practicing in Family Medicine in Port Hueneme, California. Dr. Clement is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Severe Combined Immunodeficiency (SCID), X-Linked Severe Combined Immunodeficiency, Omenn Syndrome, and Type 2 Diabetes (T2D).
Southern California Permanente Medical Group
Maggie Ham is a Gastroenterologist practicing medicine in Ventura, California. Dr. Ham is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. Her clinical expertise encompasses Ulcerative Colitis, Viral Gastroenteritis, Crohn's Disease, Endoscopy, and Colonoscopy.
Island View Gastroenterology Associates
Joel Alpern is a Gastroenterologist practicing medicine in Ventura, California. Dr. Alpern is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 28 other conditions, according to our data. His clinical expertise encompasses Gastric Dysmotility, Gastroesophageal Reflux Disease (GERD), Diarrhea, Endoscopy, and Gastrectomy. Dr. Alpern is board certified in Gastroenterology. Dr. Alpern is currently accepting new patients.
Ventura County Gastroenterology Group
Jay Guan is a Gastroenterologist practicing medicine in Camarillo, California. Dr. Guan is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. 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.
Island View Gastroenterology Assoc.
Chetan Gondha is a Gastroenterologist practicing medicine in Ventura, California. Dr. Gondha is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Diarrhea, Trichohepatoenteric Syndrome, Endoscopy, and Colonoscopy.
Laya Nasrollah is a Gastroenterologist practicing medicine in Camarillo, California. Dr. Nasrollah is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. 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.
Office
Arthur Inoshita is a primary care provider, practicing in Geriatrics in Ventura, California. Dr. Inoshita is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Prolidase Deficiency, Abdominal Obesity Metabolic Syndrome, Type B Insulin Resistance Syndrome, Cytochrome C Oxidase Deficiency, and Ureteroscopy.
Medicine Specialty Center West
Scott Underwood is a primary care provider, practicing in Gastroenterologist in Ventura, California. Dr. Underwood is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Hepatitis C, Hepatitis, and Hemorrhagic Proctocolitis. Dr. Underwood is board certified in Gastroenterology-Internal Medicine. Dr. Underwood is currently accepting new patients.
Office
Thomas Mcbreen is a primary care provider, practicing in Family Medicine in Ventura, California. Dr. Mcbreen is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Invertebral Disc Disease, Sciatica, Otitis, Asthma in Children, and Endoscopy.
Community Memorial Health System
Michelle Daucett is a primary care provider, practicing in Emergency Medicine in Ventura, California. Dr. Daucett is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. Her clinical expertise encompasses Type 2 Diabetes (T2D), Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Hypertension.
West Ventura Medical Clinic
Isabel Gonzalez is a primary care provider, practicing in Family Medicine in Ventura, California. Dr. Gonzalez is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Maturity Onset Diabetes of the Young, Chronic Cough, Type 2 Diabetes (T2D), and Vertigo.
Last Updated: 04/28/2026


