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Dr. Ghobrial is a Board Certified General Surgeon. He has over 20 years of experience in trauma, critical care and general surgery, with a special interest in advanced laparoscopic procedures. He is a highly skilled physician who utilizes the most advanced techniques and technology available today, such as Robotic Assisted Hernia Repair, to ensure the best surgical outcome for each patient. Gergis Ghobrial, MD, is certified by the American Board of Surgery and is a Fellow of the Royal College of Surgeons in Ireland. He has been in private practice in Southern California since 1997. He is an active member at Long Beach Memorial Medical Center where he served as Chief of Surgery and is a member of the Board of Trustees.

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.

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.

 

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. 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.