Dr. Norman Seat
Dr. Seat grew up in Kansas where he found his love and passion for animals. He received his Bachelors Degree in Animal Science from Kansas State University in 1987. He then went on to receive his Degree in Veterinary Medicine from Kansas State University in 1992.
After completing his externship at an Oncology clinic in Los Angeles Dr. Seat moved to Orange County in 1993 where he purchased Antonio Animal Hospital.
Dr. Seat currently has two cats; Jackson and Savannah. When not working Dr. Seat enjoys Bass fishing and various other outdoor activities. He was actually a professional Bass Angler on the FLW tour from 2004 to 2010.
Dr. Seat welcomes everyone; which is evident in his strong passion for animals and their people. Dr. Seat's motto is "People don't care how much you know, until they know how much you care." Dr. Seat's special areas of interest include Internal Medicine, Gastroenterology, Endoscopy/Colonoscopy, Soft Tissue and Orthopedic Surgery. He is a member of AVMA, SCVMA, CVMA, and is an USDA accredited veterinarian.
The Office Cat
Scarf was born and raised in Orange County before coming to the Hospital as our Office Cat after his Dad, Dr. Seat, saved his life. He graduated first in his class from Cuteness University, and received his Degree in Cuddle Bug with a minor in Snuggler. He is our official greeter and therapy cat who you will most likely find sitting on our front counter sleeping. He enjoys eating, purring, giving hugs and spending time with his girlfriend Misty, our other "unofficial" office cat. You can follow their adventures on Instagram at @Scarf_the_office_cat.
Dr. Kristin Yamasaki
Dr. Yamasaki was born and raised in Southern California. She received her Bachelors of Science Degree in Biology from University of California, San Diego in 2004. She then went on to receive her Doctor of Veterinary Medicine degree from Western University in 2008.
After graduating from veterinary school, Dr. Yamasaki completed a rigorous small animal internship at Southern California Veterinary Specialty Hospital in Irvine, California. She has practiced at multiple veterinary hospitals in Southern California. Her areas of interest include Internal Medicine, Surgery, and Dentistry.
She is a member of the SCVMA and AVMA, and is an USDA accredited veterinarian. One of Dr. Yamasaki's favorite parts of veterinary medicine is the relationship she develops with her patients and their parents.
Dr. Yamasaki lives in North Tustin with her husband, three children, and her furry child, Nika, a scruffy terrier mix. Dr. Yamasaki enjoys traveling, trying different foods, and spending time with family and friends.
Dr. Heather Larson
Dr. Larson is a South Orange County native. She left the area after high school to attend Texas A&M University, graduating with a Bachelors of Science in Biomedical Sciences in 2003 and subsequent Doctorate of Veterinary Medicine in 2007. Her lifelong passion of all things horses brought her back to her hometown in Southern California where she practiced equine medicine for five years. Dr. Larson transitioned into small animal medicine after a cross-country move to Maryland with her family.
She served as a staff veterinarian for the Baltimore Humane Society for three years until an opportunity arose to move back to Southern California. She has continued to practice small animal medicine in the area ever since.
Dr. Larson’s professional interests include soft tissue surgery and preventative medicine. Her background in shelter medicine and high-volume,
high-quality spay/neuter has afforded her opportunities to work with several non-profit organizations in the area, fostering her passion for rescue animal health and welfare. She is a member of the SCVMA, CVMA, and is a USDA accredited veterinarian.
Dr. Larson currently lives in Mission Viejo with her husband and 2 children. She has a Bassett hound mix, Higgins, and a Holsteiner horse, Klaus. In her free time, she enjoys horseback riding and spending time outdoors with her family.