Meet the Team

Dr. Nathaniel Ban

dr-nathaniel-ban.jpg I am originally from South Korea and received my Doctors of Veterinary Medicine (DVM) at Seoul National University on Mar, 2000. I also received Master’s Degree in 2002. Following school, I had worked as a chief of staff at a department of internal medicine of referral animal hospital in Korea for about five years. Since becoming a California licensed veterinarian, I have always made it a priority to keep up with the most up to date medical advances by attending veterinary medical conferences in order to deliver most accurate diagnosis and effective treatment for my patients as well as serving our clients. I also completed an externship at Animal Medical Center in New York, one of the largest postgraduate veterinary medical training hospitals in the United States. I was fortunate to have worked with 28 board-certified veterinarians, 15 interns and 20 residents at three different departments including internal medicine, critical care and emergency as well as soft tissue surgery. It was great and fantastic experience to me and definitely helped me to develop next stage of veterinary medicine.

My professional interest includes internal medicine such as endocrinology, hematology, gastroenterology, dermatology, cardiology, soft tissue surgery, dentistry and all preventive care. Preventive care is the most important veterinary field to keeping our pets healthy and living longer, happier lives. I currently live with my wife, two sons and one dog, Lilly. I love playing baseball and soccer with my children on my day off. I try to work out on a regular basis because I truly believe well balanced lifestyle makes a huge difference in my practice. My goal is to provide the best health care of your pets. I look forward to serving you and your family!

Dr. Shan Huang 

Dr. Huang

Dr Shan Huang grew up in Beijing, China. She went to China Agricultural University for her vet school. After graduation, she worked at the veterinary teaching hospital before moving to the US. She lived in Massachusetts and Louisiana and moved to California in 2017. She loves seeing puppies and kittens as well as senior pets and provides all the care they need. Aside from wellness care, she also likes dentistry and general surgery.

Dr Huang is USDA accredited to make pet international health certificates. She speaks Mandarin and English. In her spare time you may find her hiking or sunbathing at the beach with her little chihuahua.

  • Debbie (Practice Manager)
    I'm born & raised here in Southern California. I ride horses, love animals and spending time with my golden retriever. I've enjoyed working at Roswinn Pet Hospital for 25 years.
  • Alyssa (RVT)

    Alyssa is from the San Fernando Valley and is a registered veterinary technician (RVT). She loves all animals including reptiles and other exotics. Her hobbies other than animals include singing, acting, swimming, and the occasional shopping at the mall

  • Victoria (Veterinary Assistant)

    Hello my name is Victoria Herrera and I am currently a college student studying biology to pursue my dream as a veterinarian. I just started volunteering and I enjoy being a part of an amazing team here at Roswinn Pet Hospital. I love spending time with my family, friends, and my dog, Leia. In my free time, I enjoy baking, binge watching Disney+, and reading.

  • Evelyn (Veterinary Assistant)

    Hello, My name is Evelyn. I was born and raised in Los Angeles and I am currently a student at Pierce College. I am studying to pursue my dream of becoming a veterinarian. My hobbies are watching the office, walks with my family and dogs, and karaoke.

  • Mark (Veterinary Assistant)

    Hello! My name is Mark Allen and I was born and raised in Los Angeles. I graduated from UC Davis in 2021 with a Bachelors in Animal Science. As an aspiring veterinarian, my goal is to go back to UC Davis and get into their School of Veterinary Medicine program. My hobbies include spending time with family, playing with my dogs Sparky and Thunder, climbing, exercising, going to the beach, watching/reading anime, and gaming. 

  • Bumblebee (Hospital Cat)

    Bumblebee (AKA Nyangee) is our official Hospital Cat! She was brought to Roswinn in April of 2019 as a stray. She is very friendly, courageous, and love cat treats. Her favorite activities include: jumping on counters for attention, playing with her feather toy, approaching large dogs and lounging on her cat condo. Bumblebee often comes to the front reception area so make sure you say hello!

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Office Hours


8:30 AM-6:00 PM


8:30 AM-6:00 PM


8:30 AM-6:00 PM


8:30 AM-6:00 PM


8:30 AM-6:00 PM


8:30 AM-4:00 PM