Yorba Regional
Animal Hospital

8290 E. Crystal Dr.
Anaheim, CA 92807

Phone : (714) 921-8700

Fax : (714) 283-1262

Appointments Available 7 Days A Week

Veterinarian Staffed for Emergencies 24 Hours Including Holidays.
Walk-ins & urgent care welcome. We offer evening and Sunday hours.
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Appointments are encouraged for non-emergency visits.
Appointments offered until 8 pm on weekdays and 6 pm on weekends.

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Meet Our Doctors

Steven Dunbar, DVM - Yorba Regional Animal Hospital - Anaheim, CA bc-steve

Dr. Steven Dunbar, DVM

Dr. Steven Dunbar is owner and founder of Yorba Regional Animal Hospital. After obtaining his Doctor of Veterinary Medicine degree from Kansas State University, Dr. Dunbar moved to California and established Eastlake Animal Hospital in 1984. Wanting to offer more services to his clients, he expanded and opened East Hills Animal Hospital, the area’s first and much-needed 24-hour emergency care and boarding facility.

After almost 25 years of veterinary service to the community, Dr. Dunbar decided to pursue a vision. This vision was a veterinary hospital like no other, a hospital that would be equipped to offer the best medicine possible while exceeding the highest standards and expectations of his clients. A true hospital open 24 hours a day, 7 days a week, providing round the clock service and care for pets. A facility that offers specialized procedures and board certified veterinarians not found in general veterinary practices.

Yorba Regional Animal Hospital has received numerous rewards, issued by several veterinary colleges and technician schools as an observation training center. Due to the high quality of care and standards in practicing medicine, our hospital has received the distinct recognition of being certified by the American Animal Hospital Association (AAHA). A distinction that less than 12 percent of North American veterinary hospitals achieve.

Dr. Dunbar enjoys boating, fishing and traveling with his wife, Jan, and their 3 sons. The Dunbar family includes a Munsterlander Pointer named Sadie.




Dr. Frank Borostyankoi, DVM, DACVS - Yorba Regional Animal Hospital - Anaheim, CA

Dr. Frank Borostyankoi, DVM, DACVS

Dr. Frank Borostyankoi is a board certified (American College of Veterinary Surgeons) veterinary surgeon specialist. He was initially trained in Europe before moving to the United States. He was a small animal clinician, researcher and educator for the University of Veterinary Medicine in Hungary.


Over the last 20 years he became one of the most recognized orthopedic specialist in Southern California. He specialized in orthopedic surgery from early on with vast experience in joint arthroscopy, joint replacement, fracture repair and spinal surgery. His work is recognized in canine knee repair worldwide through his reputable orthopedic implant supply company by his inventions and patented specialty implants. He is also recognized about working with difficult cases in orthopedic and soft-tissue surgeries that maybe judged beyond repair. He frequently lectures in small animal orthopedics in southern California and in abroad. He is a member of several Veterinary Orthopedic Societies in the US and the EU. He also serves as a veterinary advisor for a globally recognized bone health institute. In spare time activities he enjoys horseback riding, boating and piloting. He is supported by his wonderful wife and his two beautiful children.




Dr. Brewer - Yorba Regional Animal Hospital - Anaheim, CA

Dr. Fred Brewer, DVM

Dr. Fred Brewer is a board certified (American College of Veterinary Internal Medicine) veterinary cardiologist. He is a native of southern California, growing up in Long Beach where he attended Long Beach Polytechnic High School and later graduated from UCLA with a Bachelor of Science degree in Psychobiology.

Later, he received his veterinary degree from Cornell University in 2009. Following the 4 years at Cornell University, he completed a 1-year general rotating internship at the California Animal Hospital Veterinary Specialty Group in West Los Angeles with Dr. Stephen J. Ettinger.

This was followed by a 3 year Cardiology residency at Cornell University, where he was trained to perform minimally invasive interventional procedures such as pacemakers, balloon valvuloplasties, and PDA occlusions. He has a keen interest in electrophysiology, has extensively studied the canine sinus node, and has published in veterinary medical journals. Additionally, he is experienced in the management of complex arrhythmias and the treatment of refractory heart failure.

In addition to providing the best quality of care for his patients, Dr. Brewer is an avid surfer and enjoys playing water polo, traveling, and photography.




BrockmeierDr. Nicole Brockmeier, DVM - Yorba Regional Animal Hospital - Anaheim, CA

Dr. Nicole Brockmeier, DVM

Dr. Brockmeier is a native of Santa Monica. She completed her undergraduate and Master’s Degree in Biomedical Sciences at Colorado State University. She then obtained her Doctorate in Veterinary Medicine at Western University of Health Sciences in 2007. Her special interests are in avian and internal medicine.

When she isn’t at work, she enjoys time with her two parrots, Ophelia and Hamlet along with reading and playing soccer.




Dr. Jonathan Cortez, DVM - Yorba Regional Animal Hospital - Anaheim, CA

Dr. Jonathan Cortez, DVM

A Southern California native, Dr. Cortez earned his Bachelor of Science degree from Cal Poly, Pomona and went on to complete his Doctorate of Veterinary Medicine degree at Western University of Health Sciences, College of Veterinary Medicine. Upon graduation, Dr. Cortez entered a rigorous one year rotating internship at Animal Specialty Group located in Los Angeles. Working at Yorba Regional Animal Hospital is a bit of a homecoming for Dr. Cortez as he worked as a Technician Supervisor here prior to entering veterinary school.

When not attending to the needs of his patients Dr. Cortez enjoys spending time with his wife and daughter.




Dr. Grant Dunbar, DVM - Yorba Regional Animal Hospital - Anaheim, CAbc-grant

Dr. Grant Dunbar, DVM

From an early age, Dr. Grant Dunbar learned that he had a love for animals, frequently bringing home any stray or abandoned animal that needed a home. This passion then evolved with him spending most of his time after school and on the weekends working at his father’s hospital developing the skills needed to take care of the animals I cared so much about. He then followed his passion, pursuing a Doctorate at Western University of Health Sciences in Pomona. After completing an internship program at Animal Emergency Medical Center he made his way back to his roots working at his father’s clinic. He continues to follow his passion and has a special interest in emergency medicine, internal medicine and surgery.




Marie Fahie, DVM, MS - Yorba Regional Animal Hospital - Anaheim, CA bc-maria

Dr. Maria Fahie, DVM, MS

Diplomate American College of Veterinary Surgery

  • Professor (Small Animal Surgery), College of Veterinary Medicine, Western University of Health Sciences, 2002 to present

  • DACVS, Diplomate of American College of Veterinary Surgeons, 1998

  • MS, Small animal reconstructive surgery, Virginia Polytechnic Institute, VA-MD Regional College of Veterinary Medicine 1996

  • Certificate of Residency, VA-MD Regional College of Veterinary Medicine 1996

  • Certificate of Internship, VA-MD Regional College of Veterinary Medicine 1993

  • DVM, Atlantic Veterinary College, University of Prince Edward island 1992

Dr. Fahie was born and raised in eastern Canada. She has a broad base of veterinary surgical experience including soft tissue, oncologic, neurologic, reconstructive and orthopedic procedures. She is known for her genuine compassion for her patients and their families. Her current clinical research involves therapy for osteoarthritis in dogs and objective methods of assessing lameness. Dr. Fahie enjoys training and mentoring veterinary students in surgical techniques and theory. She is an active participant in continuing education in surgery and teaching. Maria lives in Orange with her husband, 2 daughters, and their furry friends. They enjoy outdoor activities including camping, dirt bike riding, mountain biking and cyclocross.




Craig Fujioka, DVM - Yorba Regional Animal Hospital - Anaheim, CA bc-craig

Dr. Craig Fujioka, DVM

A Southern California Native, Dr. Craig Fujioka grew up in Yorba Linda. Back in 1993, he began volunteering for Dr. Dunbar at East Hills Animal Hospital and continued working there as an Emergency Technician during breaks from school. Dr. Fujioka attended undergraduate school at UC San Diego studying Biology and Animal Physiology. He went on to obtain his Doctorate of Veterinary Medicine from Ross University School of Veterinary Medicine and completed his clinical rotations at the College of Veterinary Medicine at the University of Minnesota in St. Paul in 2001. Dr. Fujioka enjoys the challenges and variety of emergency medicine.

Dr. Fujioka enjoys golfing, fishing, hiking and is a fan of the Angels, Lakers, and Chargers. He loves spending time with his wife and their three dogs and two cats.




Sharon H. Hong - Yorba Regional Animal Hospital - Anaheim, CA bc-sharon

Dr. Sharon Hong, DVM

Originally from Taipei, Dr. Sharon Hong received her Bachelor of Science degree from California State Polytechnic University in Pomona. She went on to obtain her Doctorate of Veterinary Medicine from the University of California, Davis and joined Yorba Regional Animal Hospital in 2007. Her areas of special interest are internal medicine and ophthalmology.




Linda S. Lee, DVM - Yorba Regional Animal Hospital - Anaheim, CA bc-linda

Dr. Linda Lee, DVM

A California native, Dr. Lee obtained her Doctor of Veterinary Medicine from Kansas State University. Prior to graduation, she worked as a veterinary technician at various animal hospitals. After graduating, she practiced at All Creatures Animal Hospital and went on to join Yorba Regional Animal Hospital, formerly East Hills Animal Hospital, in 1998.

Dr. Lee enjoys being “Godmother” to the many dogs of her friends and coworkers. She is active with Cal Poly's Rose Float and has been decorating since she was a student there where she received her bachelors in Animal Science.




Grace M. Matsuura, DVM - Yorba Regional Animal Hospital - Anaheim, CA bc-grace

Dr. Grace Matsuura, DVM

Born and raised in Haleiwa, Hawaii, Dr. Grace Matsuura obtained her Doctorate of Veterinary Medicine from Colorado State University. She was an associate veterinarian at Community Veterinary Hospital for many years before joining Yorba Regional Animal Hospital, formerly East Hills Animal Hospital, in 2003. Dr. Matsuura has the distinction of having served as past president of the Southern California Veterinary Medical Association. Her family of pets include dogs, cats, horses, chickens, tortoises, and koi fish. When she is not caring for her pets or yours, Dr. Matsuura enjoys photography, traveling, sewing and spending time with her human family – husband, Anthony, and son, Tony Jr., an aspiring baseball star.




Dr. Laura Meals, DVM - Yorba Regional Animal Hospital - Anaheim, CA

Dr. Laura Meals, DVM

Born and raised in Chicago, Dr. Meals graduated from the University of Illinois, College of Veterinary Medicine in 2012 and joined our team shortly after. Prior to that she obtained her Bachelor of Science degree in Animal Science and worked as a veterinarian assistant and hospital zookeeper at Chicago’s Brookfield Zoo. Her special interests include exotic and wildlife medicine, surgery, and emergency/critical care medicine.

When not caring for your critters, Dr. Meals spends time with her two kitties, Nala and Clementine, a spoiled dog named Molly, and her husband. When not working she likes to relax at the beach, travel, and brag to her family and friends back home about the weather in California.




Dr. Amanda Olinger, DVM - Yorba Regional Animal Hospital - Anaheim, CA

Dr. Amanda Olinger, DVM

Dr. Olinger grew up in sunny Huntington Beach California. She completed her undergraduate degree at California State University Long Beach in Biology. She then received her Doctorate of Veterinary Medicine from Ross University School of Veterinary Medicine and completed her clinical rotations at Oregon State University in Corvallis. She joined our practice shortly after. Her special interests include surgery and ultrasonography. She currently has one 4-year-old cat, Sammy, who has accompanied her on her many travels around the country.

In her off time, she enjoys going to the beach, traveling, drawing and watching movies.




Gary Tateyama,DVM - Yorba Regional Animal Hospital - Anaheim, CA bc-gary

Dr. Gary Tateyama, DVM

Due to having extended family in Colorado, Dr. Gary Tateyama chose Colorado State University located in Fort Collins, CO as his choice for his college studies where he earned his Bachelor of Science in Microbiology in 1992 and his Doctorate of Veterinary Medicine in 1996. In 1990 during vacation breaks from college, he started working for Dr. Steve Dunbar as a kennel attendant and technician. Right after graduating from vet school, Dr. Tateyama joined Dr. Dunbar as a veterinarian and colleague. Initially he worked the overnight emergency shift at East Hills Animal Hospital (later Yorba Regional Animal Hospital) and would continue to do so for the next 10 years. In 2006, Dr. Tateyama decided it was time to experience normal working hours and switched to being a general daytime practitioner.

When not working Dr. Tateyama likes to cheer on the Denver Broncos whom he loves dearly. He also roots for the Angels, Lakers, Rockies, and Nuggets. In between football games and sports seasons, he can be found on the golf course, in kickboxing and Zumba classes, at the movies, or traveling. He also enjoys spending time with his husband Kyle and their two dogs, a Maltese named Reichen and a chihuahua/poodle mix named L.C. (Lamb Chop), whom he took in as rescues from the hospital.




Robert Weiss, DVM - Yorba Regional Animal Hospital - Anaheim, CA bc-robert

Dr. Robert Weiss, DVM

A native of Santa Monica, Dr. Robert Weiss obtained his Bachelor of Arts degree from UCLA and went on to complete his Doctorate of Veterinary Medicine degree from Iowa State University. After which, he underwent rigorous training in a one-year rotating internship in internal medicine and surgery with VCA West Los Angeles Animal Hospital. In 2007, Dr. Robert Weiss joined our team at Yorba Regional Animal Hospital. His areas of special interest are internal medicine, dermatology, and ultrasonography.

Dr. Weiss loves spending time with his wife, his two sons and of course his two troublemaking Boston Terriers. He is a huge Dodgers’, Bruins’ and Lakers’ fan. His hobbies include crossfit, golf, cooking (eating), and being dad.




Beckie Williams, DVM - Yorba Regional Animal Hospital - Anaheim, CA bc-beckie

Dr. Beckie Williams, DVM

Dr. Beckie Williams joined the staff of Eastlake Animal Hospital in 2002 just in time to assist with the planning of Yorba Regional Animal Hospital. Having been raised in rural Kansas, she was an active 4-H member who grew up showing horses and dogs. She obtained her Doctor of Veterinary Medicine from Kansas State University in 1985. Dr. Williams and her partners now raise and show Pembroke Welsh Corgis under the name of Coventry Kennels. She has traveled throughout the country with her dogs and has multiple Best in Show winners, including 3 in the top ten of all time. Coventry received Winkie Award for Breeder of the Year in 2013.

Dr. Williams has a special interest in reproduction and heads up the reproductive program at Yorba Regional Animal Hospital. She has extensive experience with breeding, whelping and neonatal care.

When not practicing veterinary medicine, or at a dog show, you can find Dr. Williams restoring her 1910 craftsman home located in a National Historic District.