Cardiologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Chiropractor providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dentist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dermatologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Family Physician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
OB-GYN providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Ophthalmologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Orthopedic Surgeon providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Pediatrician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Physical Therapist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Podiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Psychiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Steven Chen, MD, is a fellowship-trained oncologist surgeon who specializes in breast, endocrine, and melanoma surgery. Today, he is proud to work with the rest of the OasisMD team to help patients recover from the effects of cancer at OasisMD in Encinitas, San Diego, and Temecula, California.
Dr. Chen completed both his undergraduate and medical degree at the University of Michigan in Ann Arbor, Michigan. He later performed his general surgery residency and critical care fellowship at the University of Michigan before moving to Los Angeles and completing a surgical oncology fellowship at the John Wayne Cancer Institute in Santa Monica, California.
Dr. Chen then joined the City of Hope, serving as the associate director of the Surgical Oncology Training Program. During his tenure there, Dr. Chen worked to train the next generation of surgical oncologists and served as the director of surgical oncology research. Dr. Chen also served as an associate professor of surgery.
Throughout his career, Dr. Chen has also served as the chief of breast surgery and the chair of the Melanoma Tumor Board at the University of California, Davis Medical Center in Sacramento, California. His leadership ability led him to become a director of the American Society of Breast Surgeons and to assist in accrediting breast oncology training programs for the Society of Surgical Oncology.
Dr. Chen has also held leadership positions in the American College of Surgeons, the American Medical Association, and the Association for Academic Surgery. A highly accomplished author, he has contributed to over 50 peer-reviewed medical publications, and he is often invited to deliver lectures all over the world.
At OasisMD, Dr. Chen performs a variety of breast, thyroid, parathyroid, and melanoma procedures. He offers a wide range of oncology surgeries, including lumpectomy, mastectomy, and biopsy. Dr. Chen looks forward to continuing his work with cancer patients in the California area.
I am Dr. Kaylene Barrera, and it my absolute pleasure to be a surgeon in this community. I grew up in Southern California and got interested in Medicine when I was young. My mother had initially wanted to be a social worker, but then went back to school to become a nurse and would ask me to help her study by quizzing her with flashcards.
This led me to college at the University of California, Irvine and medical school at the University of Southern California, where I was fortunate to work with some amazing mentors that inspired me to go into surgery. My surgical training continued at the State University of New York, Downstate in Brooklyn where I trained at county and university hospitals. Again, I was blessed to have the most amazing mentors that taught me not only the technical aspects of surgery but the importance of dedication to our patients. I appreciated how as a surgeon, one could be involved in every aspect of a patient's care, contribute to scientific breakthroughs and be a patient advocate. Sharing what I have learned and experienced as a surgeon, I have published 9 peer reviewed publications, 33 national presentations, and four book chapters. I also have written about impact of meaningful issues such as drug shortage and the opioid epidemic, as these have a profound impact on my patients lives.
My journey has led be back to California, and to a great practice where I feel at home. My partners and I strive to treat each patient that we take care of like our family. As a general surgeon I have the opportunity to care for conditions ranging anywhere from lipomas and cysts to hernias, gallbladder disease, hemorrhoids, breast disease, trauma, and intestinal surgery.
Outside of the operating room, I enjoy playing the clarinet and saxophone, being an amateur gardener, and watching reruns of Star Trek TNG.
Thank you for choosing Murrieta Valley Surgery Associates, looking forward to the opportunity to help you in your wellness journey
Francis Essien, MD, FACS, is a board-certified general surgeon and fellowship trained in minimally invasive and bariatric surgery.
Dr. Essien's zeal for the art and science of medicine and surgery began as a teenager at the University of Ibadan in Nigeria.
An interest in providing excellent patient care brought Dr. Essien to the United States to pursue a natural calling in the surgical specialty.
Passionate about cutting-edge, advanced, minimally invasive, and robotic surgical technology, Dr. Essien’s knowledge and expertise give patients the advantage of a faster recovery.
The surgeon’s more cosmetic approach also offers less pain and a quicker return to a happier and more productive lifestyle.
Dr. Essien is highly skilled in various procedures, most frequently performing laparoscopic surgery for severe gastroesophageal reflux disease, laparoscopic hernia repairs, hiatal hernia repairs, minimally invasive endocrine surgery, laparoscopic adrenalectomy, and laparoscopic colon resections for benign and malignant conditions.
Dr. Essien also performs laparoscopic sleeve gastrectomy, laparoscopic gastric bypass, and revision bariatric procedures.
With a passion for Bariatric surgery, Dr. Essien helps patients achieve their goals of a healthier weight while eliminating the medical illnesses associated with excessive weight and enjoying a better quality of life.
Dr. Essien believes in an individualized and holistic approach to improving the health and wellness of patients.
Outside of caring for patients, Dr. Essien enjoys spending time with family at home, cooking, traveling, cycling, and playing golf.
Brian Tiu, MD, is a board-certified vascular surgeon at Murrieta Valley Surgery Associates.
Dr. Tiu always knew he wanted to be a doctor. Growing up, he volunteered at various hospitals and medical centers, which spurred his interest in medicine.
Dr. Tiu studied at Rutgers New Jersey Medical School in Newark, earning his medical degree. Then, he completed a surgical residency at the State University of New York (SUNY) Downstate Medical Center in Brooklyn and a vascular surgery fellowship at Maimonides Medical Center, also in Brooklyn.
These experiences inspired Dr. Tiu to pursue a career in vascular surgery. Dr. Tiu thinks vascular surgery is the most interesting field of medicine. As an expert in the field, he does everything from minimally invasive procedures, like angiograms, to open procedures, like removing blockages and performing bypasses.
Dr. Tiu loves making a difference in his patients' lives. He never rushes appointments and makes time to explain each vascular diagnosis in-depth. Specifically, he explains the natural course of diseases, including where they originate, why they occur, and what can be done to improve them.
I am a triple-board certified surgeon with expertise in general, colorectal and trauma/ critical care surgery. Born and and raised in Brazil, I completed my medical education at the Federal University of Santa Catarina (UFSC).
In high school, my passion for Biology, Math and Physics led me to pursue medicine for its challenging and exciting nature. Working in the operating room, I take great satisfation in promptly addressing my patient's concerns through surgical interventions.
My frequent surgical procedures involve colorectal cancer removal, anorectal surgery (including hemorrhoids and fistulas), and hernia repair. With over two decades of surgical experience in Murrieta and Temecula, I am committed to providing patients with top-notch care and a positive treatment experience. As a Fellow of the American College of Surgeons (FACS) and the American Society of Colon and Rectal Surgeons (FASCRS), I continuously strive to integrate new technologies into my practice.
Beyond my medical pursuits, I enjoy traveling with my family, watching movies, reading, operating my drone, and capturing aerial photographs.
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