Dr. Tuai attended Ohio State University, College of Medicine after he received his Undergraduate Degree in Biochemistry at UC Davis in 1992. He completed his general surgery residency at UC San Francisco/Fresno, where he spent a year as a clinical instructor in the Department of Surgery, before beginning a private practice in Chino. He joined the Group in December, 2004.Dr. Tuai is a Board Certified surgeon and a Fellow of the American College of Surgeons who has extensive experience with advanced laparoscopic and minimally invasive techniques including robotic surgery.Dr. Tuai's passion is minimally invasive surgeries, especially involving the colon, stomach, gall bladder, and hernias. He is fluent in Mandarin Chinese and Korean.Offers high-quality, individualized care with compassion. Believes communication and collaboration with patients is the foundation for effective relationships. Through effective education, patients are empowered to partner in their care and achieve their health goals. Dr. Tuai is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Hernia, Gallstones, Choledocholithiasis, Hernia Surgery, and Ileostomy.

A Ventura County native, Dr. Montes is a graduate of Boston University School of Medicine and served as Medical Director of the Radiation Oncology Department at St. Bernardine Medical Center before joining ROCVC. Fluent in Spanish and the recipient of many honors and awards, he believes in the team approach to cancer care, appreciates the value of knowledge, and keeps his practice at the forefront of technology. Dr. Montes provides high-level care to cancer patients and specializes in the most advanced treatments for prostate, breast and skin cancer.Dr. Montes earned his Bachelor's in Mechanical Engineering from Loyola Marymount University and earned his M.D. from the Boston University School of Medicine. His postdoctoral training included an Internal Medicine residency at the Veteran's Administration/West Los Angeles and Radiation Oncology training at the University of Arizona Health Sciences Center. Prior to joining the Ventura County Center in 2000, he served as radiation oncology associate medical director at Desert Hospital Comprehensive Cancer Center in Palm Springs, California.Dr. Montes is dedicated to ongoing education and implementation of the most advanced cancer treatments. Patients often comment on his professionalism and reassuring manner.Honors and awards include:• Catherine McAuley Lifetime Achievement Award -  St. John's Healthcare Foundation• Celebration of Excellence Award - The Cancer Support Community - Valley/Ventura• Education and Development Fund Award, American Society for Therapeutic Radiology and Oncology• Clinical Oncology Career Development Award from the American Cancer Society• American College of Radiation Oncology Fellowship AwardDr. Montes belongs to the Southern California Radiation Oncology/Los Angeles Radiologic Society, the American Society for Therapeutic Radiation Oncology, the American College of Radiology, the Ventura County Medical Association, the California Medical Association and the American Medical Association. He is a member of the Medical Board of Directors, American Cancer Society, Central California Division. Dr. Montes also serves on the Wellness Community Professional Advisory Board and the St. John's Healthcare Foundation Board (Oxnard and Pleasant Valley).Cancer has touched my own loved ones, giving me first-hand awareness of the fear a cancer diagnosis brings to a patient and his or her family. It's important to provide patients with a comprehensive education of the disease and treatment process, thereby empowering them with the knowledge to make educated decisions for themselves. We offer patients the most current technology and a highly trained patient care team to ensure that they receive effective as well as compassionate treatment.– Dr. Henry Z. Montes. Dr. Montes is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Breast Cancer, Intraductal Papilloma, HER-2 Positive Breast Cancer, and Metastatic Brain Tumor.

Dr. Timothy O'Connor is Chairman of the Cancer program at St. John's Regional Medical Center in Ventura County, California.  He was a former assistant Clinical Professor at UCLA Medical Center after the completion of his residency at UCLA.  He has a special interest in robotic 6D image guided radiotherapy and its application across a broad spectrum of malignancies including breast cancer, CNS malignancies, head and neck malignancies as well as GI and GU malignancies.  Dr. O'Connor serves as President of Ventura County Radiation Oncology Medical Group,   Medical Director of the Radiation Oncology Centers of Ventura County, and Director of Radiation Oncology at the Ventura County Cancer Center. Dr. O'Connor led the accreditation of the Commission on Cancer Accreditation Program, the National Accreditation Program for Breast Centers and the game-changing STAR Program for cancer rehabilitation for St. John's Regional Medical Center. He participates in weekly multidisciplinary cancer meetings bringing together specialists across oncology to discuss and review  and implement new strategies for cancer care for  specific patients.  His broad experience in multiple oncology roles  provides unique insight into cancer care within the community setting.My experience working with grief expert and author Elisabeth Kübler Ross led me toward the field of oncology. Her compassionate care for cancer patients inspired me, and she helped me to understand the relationship between life and death. As an oncology physician who wants to be useful beyond just my technical skills, it's important to work through these types of issues for myself. Having empathy for what my patients are going through, and expressing that to them, is a vital part of their treatment.– Dr. Timothy A. O'Connor. Dr. O'connor is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Pleuropulmonary Blastoma, Breast Cancer, Laryngeal Cancer, and Throat Cancer.

Offers high-quality, individualized care with compassion. Believes communication and collaboration with patients is the foundation for effective relationships. Through effective education, patients are empowered to partner in their care and achieve their health goals. Dr. Banta is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Inflammatory Breast Cancer, Essential Thrombocythemia, Angiosarcoma, and Evans Syndrome.

Austin Ma is an Oncologist in Oxnard, California. Dr. Ma is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Inflammatory Breast Cancer, Angiosarcoma, Breast Cancer, and Paget Disease of the Breast. Dr. Ma is currently accepting new patients.

David Masiello is a Hematologist in Oxnard, California. Dr. Masiello is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Inflammatory Breast Cancer, Angiosarcoma, Paget Disease of the Breast, and Breast Cancer. Dr. Masiello is currently accepting new patients.

Rahul Naik is an Oncologist in Oxnard, California. Dr. Naik is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Thrombocytopenia, Essential Thrombocythemia, Acute Mountain Sickness, and HER-2 Positive Breast Cancer. Dr. Naik is currently accepting new patients.

Byung Lee is a Hematologist in Oxnard, California. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Inflammatory Breast Cancer, Angiosarcoma, Anemia, and Paget Disease of the Breast. Dr. Lee is currently accepting new patients.

Warner Peng is an Oncologist in Oxnard, California. Dr. Peng is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Thrombocytopenia, Essential Thrombocythemia, Acute Mountain Sickness, and Monoclonal Gammopathy of Undetermined Significance (MGUS). Dr. Peng is currently accepting new patients.

Jeremy Schweitzer is a Colorectal Surgeon in Ventura, California. Dr. Schweitzer is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Familial Colorectal Cancer, Colorectal Cancer, Anal Cancer, and Rectal Prolapse. Dr. Schweitzer is currently accepting new patients.

Douglas Woodburn is a General Surgeon in Ventura, California. Dr. Woodburn is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Proctitis, Hernia, Anorectal Abscess, Bladder Reconstruction, and Lymphadenectomy. Dr. Woodburn is currently accepting new patients.

Baijia Jiang is a Hematologist and an Oncologist in Ventura, California. Dr. Jiang is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. Her top areas of expertise are Drug-Induced Thrombocytopenia, Idiopathic Neutropenia, Iron Deficiency Anemia, and Thrombocytopenia.

Thomas Dunlop is a primary care provider, practicing in Family Medicine in Ventura, California. Dr. Dunlop is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Familial Colorectal Cancer, Breast Cancer, Colorectal Cancer, and Gallbladder Cancer.

Take care of all aspects of your health. Dr. Salehpour is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Hernia, Retroperitoneal Inflammation, Lump in the Abdomen, Gallbladder Removal, and Hernia Surgery.