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.
Bolaji Nafiu, MD, FACS, is a double-board-certified vascular surgeon at Murrieta Valley Surgery Associates.
Dr. Nafiu studied at the University of Ibadan College of Medicine in Nigeria, earning his medical degree. After graduation, he moved to the United States. He completed a general surgery residency at the Charles R. Drew University of Medicine and Science in Willowbrook, California, and a vascular surgery fellowship at Yale New Haven Hospital in Connecticut.
As a general and vascular surgeon, Dr. Nafiu treats various medical conditions, including blood clots, carotid artery disease, and chronic venous insufficiency. He also treats aortic aneurysms and peripheral vascular disease.
He holds privileges at several area hospitals, including Inland Valley Regional Medical Center in Wildomar, California; Rancho Springs Medical Center and Loma Linda University Medical Center Murrieta in Murrieta, California; and Temecula Valley Hospital in Temecula, California.
Dr. Nafiu is a fellow of the American College of Surgeons and a member of the Society of Vascular Surgery and the American Venous Forum. He welcomes anyone needing vascular or general surgery to Murrieta Valley Surgery Associates today.
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.
Hege Johnsen, MD, FACS, is a board-certified general surgeon at Murrieta Valley Surgery Associates, providing complete surgical care to patients in Wildomar, Temecula, Hemet, and Menifee, California.
Dr. Johnsen studied at Albert Szent-Gyorgi Medical University in Szeged, Hungary, earning her medical degree. She then moved to the United States and completed a residency in general surgery.
Dr. Johnsen brings more than 20 years of experience to the practice. She specializes in general surgery but has a special interest in breast surgery and inguinal hernia repair without mesh (shouldice procedure).
Outside of Murrieta Valley Surgery Associates, Dr. Johnsen holds appointments at several area hospitals, including Inland Valley Regional Medical Center in Wildomar, California; Rancho Springs Medical Center in Murrieta, California; Menifee Valley Hospital in Menifee, California; and Temecula Valley Hospital in Temecula, California; and Loma Linda University Medical Center.
Dr. Johnsen is board-certified by the American Board of Surgery and is a Fellow of the American College of Surgeons. She speaks English and Norwegian fluently, allowing her to serve the practice’s diverse clientele.
Dr. Johnsen welcomes anyone needing general, breast surgery, hernia repair or cholecystectomy to Murrieta Valley Surgery Associates today.
Xiujie Wang, MD, FACS, RPVI, is a board-certified vascular surgeon at Murrieta Valley Surgery Associates.
Dr. Wang studied at Shanxi Medical University in Jinzhong, China, earning her medical degree. After graduation, she moved to the United States and completed a surgical residency at St. Mary’s Hospital in Waterbury, Connecticut. She also completed a vascular surgery fellowship at the Icahn School of Medicine at Mount Sinai in New York City.
Dr. Wang brings more than 20 years of vascular surgery experience to the practice. She treats a wide array of conditions but has a special interest in treating peripheral artery disease (PAD), varicose veins, and aneurysms.
Outside of the office, Dr. Wang holds appointments at several area hospitals, including Inland Valley Regional Medical Center; Rancho Springs Medical Center and Loma Linda University Medical Center; and Temecula Valley Hospital.
Dr. Wang is board-certified in general and vascular surgery by the American Board of Surgery. She’s also a fellow of the American College of Surgeons and a member of the Society of Vascular Surgery and the American Venous Forum.
Dr. Wang welcomes anyone in need of vascular surgery to Murrieta Valley Surgery Associates today.
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.
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
Dr. Robert Yavrouian, MD, is a board-certified surgeon specializing in colon and rectal surgery. Dr. Yavrouian has been serving the Southern California area for over a decade with offices in the Boyle Heights area of Los Angeles and Glendale, California.
Dr. Yavrouian is a Southern California native who attended the University of Southern California (USC), where he received his bachelor’s and master’s degrees in biomedical engineering. He earned his medical degree from Drexel University in Philadelphia and completed his general surgery training at San Joaquin General Hospital in Stockton, CA. He then returned to USC to complete his fellowship specializing in colon and rectal surgery.
He is trained to treat all aspects of colorectal health, including both benign and malignant conditions of the colon, rectum, and anus. Dr. Yavrouian’s clinical interests include hemorrhoids, proctology, colonoscopy, anal abscess and fistula, anal fissure, pilonidal disease, diverticular disease, rectal prolapse, colon and rectal cancer, and minimally invasive surgical techniques, including laparoscopic and robotic surgery.
He is an attending surgeon at Glendale Adventist Medical Center and White Memorial Medical Center. Dr. Yavrouian is a member of the American College of Surgeons, American Society of Colon and Rectal Surgeons, Northwest Society of Colon & Rectal Surgeons, and Armenian American Medical Society.
Dr. Yavrouian knows that visiting a surgeon for a colorectal problem can be both frightening and embarrassing. He and his staff are committed to providing patients with the best possible care in a warm, caring, and compassionate environment. Schedule an appointment by calling the nearest office or booking online today.
Edgar Enriquez, MD, FACS, is a general surgeon who practices in Santa Clarita and in Downtown Los Angeles, California. He has over 25 years of healthcare experience and is determined to provide his patients with exceptional care.
Dr. Enriquez specializes in colorectal surgery and robotic hernia repair, utilizing minimally invasive technology to enhance outcomes, reduce recovery time, and improve overall patient comfort. His approach emphasizes individualized treatment planning, ensuring each patient receives care tailored to their unique needs and goals.
In addition, Dr. Enriquez provides comprehensive services in trauma and acute care surgery, offering timely, skilled intervention when it matters most. Whether managing urgent surgical conditions or coordinating care during critical moments, he is dedicated to delivering efficient and effective treatment.
Dr. Enriquez's expertise also extends to breast oncology and benign breast disease, where we guide patients through diagnosis, treatment, and recovery with sensitivity and support. He believes in combining surgical excellence with a compassionate approach, helping patients feel informed and empowered every step of the way.
Above all, he and his team are driven by a shared commitment to improving health, restoring function, and enhancing quality of life for every patient they serve.
To schedule a consultation with Edgar Enriquez, MD, FACS, call the nearest office or request one online today.
Board-Certified Orthopedic Surgeon Specializing in Foot and Ankle Disorders & Hip and Knee Replacements
Medical Degree
University of North Carolina, Chapel Hill, North Carolina Sarah Graham Kenan Scholarship John B. Graham Research Society
Internship
Medical College of Virginia, Richmond, Virginia
Orthopedic Residency
Medical College of Virginia, Richmond, Virginia
Orthopedic Fellowship
Duke University Medical Center, Durham, North Carolina
Research Presentations
Clinical and radiographic results of 227 consecutive primary total hip arthroplasties using a femoral component with proximal and distal precoating and built-on centralizers. Found significant association between initial cement mantle radiographic grade and mechanical loosening. Presentation at the 1999 North Carolina Orthopaedic Association Conference and at the 2000 John B. Graham Student Research Day.
Effect of barium sulfate particle size on production of IL-1, IL-6. and TNF-alpha. Found no difference in cytokine production between micro- and nano-sized particles exposed to mouse macrophages. 2003. Presentation at 2003 MCV Resident's Day.
Short term outcomes after tibial shaft fractures: a retrospective study at MCV hospital. Found that institutional data correlates with similar outcome studies in the trauma literature which included a low complication rate and a functional deficiencies in a majority of patients. 2005. Presentation at 2005 MCV Resident's Day.
Open reduction and internal fixation of the symptomatic type II accessory navicular. Found no significant difference between excision and ORIF of symptomatic accessory navicular bones. 2006. Video poster presentation at 2006 Summer AOFAS meeting. Presentation at 2006 North Carolina Orthopaedic Society Meeting. Poster presentation at 2007 American Academy of Orthopaedic Surgeons.
Publications
Scott A, Sabesan V, Saluta JR, Easley ME. Open reduction and internal fixation of the symptomatic type II accessory navicular. Foot Ankle Int. in press 2008.
Saluta JR, Nunley JA. Chapter: Percutaneous open reduction and internal fixation of fifth metatarsal base fractures. MIS Techniques in Orthopaedics. Springer. 2009. In press.
Saluta JR, Nunley JA. Ankle injuries in athletes. The Journal of Musculoskeletal Medicine. 23:195-201; 2006.
Saluta JR, Nunley JA. Foot and ankle rehabilitation success hinges on screening accuracy: Biomechanics. June, 2006.
Lectures
Grand Rounds: Five foot and ankle problems every doctor should know. Good Samaritan Hospital 4/05/2007. California Hospital Medical Center 4/08. St. Vincent Medical Center 5/08.
Grand Rounds: My Experience with Hip, Knee, and Ankle Arthritis. Good Samaritan Hospital. 1/16/2008.
Foot and Ankle Injuries in Running. Speaker at McDonalds Expo. Los Angeles Marathon. 2/29/08 and 3/01/08.
Advancements In Orthopaedics: Hip, Knee, and Ankle Technologies. Speaker. Stryker International. 3/19/08
Media
Care of the Foot and Ankle. Radio Manila. Consultant, Orthopaedic Surgeon. Health segment of one hour international radio talk show. Dec 2006.
Governor Schwarzenegger recovering from surgery. KABC-TV Los Angeles evening news. Consultant, Orthopaedic Surgeon. Dec 2006.
What Happens Next: When a Bone Breaks. Banner Caswell Productions. Television documentary. Consultant, Orthopaedic Surgeon. Veria channel, Dish network. Dec 2007.
Professional Affiliations
American Academy of Orthopaedic Surgeons
American Orthopaedic Foot and Ankle Society
Piedmont Orthopaedic Society
California Orthopaedic Association
Community
2008-2010 Official Medical Team Los Angeles Marathon
2008-2010 National Youth Leadership Forum Volunteer Speaker
January 2010 Medical Mission at California Medical Center in San Fernando, La Union, Philippines
2006 Member of Orthopaedic Trauma Team at California Hospital, Level 2 Trauma Center
Dr. Robert Yavrouian, MD, is a board-certified surgeon specializing in colon and rectal surgery. Dr. Yavrouian has been serving the Southern California area for over a decade with offices in the Boyle Heights area of Los Angeles and Glendale, California.
Dr. Yavrouian is a Southern California native who attended the University of Southern California (USC), where he received his bachelor’s and master’s degrees in biomedical engineering. He earned his medical degree from Drexel University in Philadelphia and completed his general surgery training at San Joaquin General Hospital in Stockton, CA. He then returned to USC to complete his fellowship specializing in colon and rectal surgery.
He is trained to treat all aspects of colorectal health, including both benign and malignant conditions of the colon, rectum, and anus. Dr. Yavrouian’s clinical interests include hemorrhoids, proctology, colonoscopy, anal abscess and fistula, anal fissure, pilonidal disease, diverticular disease, rectal prolapse, colon and rectal cancer, and minimally invasive surgical techniques, including laparoscopic and robotic surgery.
He is an attending surgeon at Glendale Adventist Medical Center and White Memorial Medical Center. Dr. Yavrouian is a member of the American College of Surgeons, American Society of Colon and Rectal Surgeons, Northwest Society of Colon & Rectal Surgeons, and Armenian American Medical Society.
Dr. Yavrouian knows that visiting a surgeon for a colorectal problem can be both frightening and embarrassing. He and his staff are committed to providing patients with the best possible care in a warm, caring, and compassionate environment. Schedule an appointment by calling the nearest office or booking online today.
Dr. Rivera graduated from the prestigious Surgery Residency Program at Morristown Memorial Medical Center, Morristown, New Jersey; affiliated with New York Mount Sinai School of Medicine. He successfully completed his Residency program and Chief Resident year, and was awarded the Hughes D. Dougan MD Award : 2010 Chief Resident Teaching Award.
Since then, they have been providing the community with excellent cutting edge surgical care, with the best surgical outcomes, lowest complication rates, lowest length of hospital stay and lowest readmission rates; which allow patients a rapid recovery to return to their normal lifestyle.
Dr. Rivera treats a wide variety of surgical conditions among which include: skin cancer, soft tissue tumors, hernia repair, gallbladder disease, gallstones, colon cancer, breast cancer, appendiceal cancer, diverticulitis, robotic surgery; and provides emergency surgical care as well.
Why go "down the hill" when you can get the same care in your community.
“Dr. Rivera showed great care and compassion during my visit and explained everything in an easy manner to make the right decision for my surgery. I felt at peace and trusted him completely, which is how you should feel with anyone taking care of your health and well being. Thank you.”
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